View the source differences on GitHub
install
and doctor
commandspackage.json
(duh...)nwayo update
All divisions must use the math.div()
method.
$half: 1 / 2;
// Becomes
@use 'sass:math';
$half: math.div(1, 2);
If you are using Foundation, you need to update it to 6.7.x or later.
Linter configurations are now included via peerDependencies
meaning you can optionally upgrade these in your project.
If you are using npm 6 or lower, or want to upgrade the rulesets you just have to add them directly and/or their dependencies in your ./package.json
. (Let npm guide you to which dependencies are needed)
Example:
{
"dependencies": {
"@absolunet/eslint-config-nwayo": "9.9.9"
}
}
Change configuration extension in ./.stylelintrc.yaml
to
extends: '@absolunet/stylelint-config-scss'
Here you have the choice of either stay with classic rules or self-manage a Prettier installation.
Add an entry in your ./.eslintrc.yaml
to reinstate pre-Prettier rules in your project.
extends:
- '@absolunet/nwayo'
-<EMAIL_ADDRESS>Add Prettier to your ./package.json
{
"dependencies": {
"@absolunet/prettier-config-core": "^1.0.0",
"prettier": "^2.5.1"
},
"scripts": {
"prettier": "./node_modules/.bin/prettier --write ."
}
}
Add a ./.prettierignore
*.*
!*.js
Add a ./.prettierrc.cjs
module.exports = {
...require("@absolunet/prettier-config-core"),
};
In the root folder run this command to reformat the code following Prettier standards
npm run prettier
nwayo.yaml
Make sure your nwayo.yaml
file is in your project's root folder and remove the root
entry in it.
Inside your ./package.json
add a postinstall
script to install vendors when installing the workflow.
{
"scripts": {
"postinstall": "cd vendor && npm install"
}
}


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Fax:<PHONE_NUMBER>
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Phone:<PHONE_NUMBER>
Fax:<PHONE_NUMBER>
<EMAIL_ADDRESS>3443 W Campbell Rd
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EPL
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Welcome to Soccer Schedules
Click on the tabs above to see the schedule of each league


Advertisements
Advertisements in the Egyptian Gazette were produced using boilerplates that repeated from issue to issue with only minor variations. This page’s database contains a complete set of these advertisements. Each advertiser is given a three-letter code, and each distinct ad from that advertiser is given a numeric suffix. Use the images and links to text below, or consult the separate database, XML files, or image files.
Every ad template has an XML id embedded in it, following this format: xml:id="deg-ad-xxx01"
.
List of Advertisers
- aac01 Allen, Alderson & Co.
- aan01 Anglo-American Nile Streamer & Hotel Coy.
- aan02 Anglo-American Nile Streamer & Hotel Coy.
- aan03 Hamburg & Anglo-American Nile Co.
- aan04 Anglo-American Nile Streamer & Hotel Coy.
- aaw01 Ariston Aerated Waters
- abp01 The Artesan Boring and Prospecting Company
- abw01 Alexandria Bonded Warehouse Company, Ltd.
- adr01 Au de Rouge
- aeb01 The Anglo-Egyptian Bank
- afc01 African Commerce
- akl01 Arthur Koppel, Ltd.
- all01 Anchor Line, Limited
- all02 Anchor Line, Limited
- alf01 Allenburys Foods
- als01 Austrian Lloyd’s Steam Navigation
- als02 Austrian Lloyd’s Steam Navigation
- api01 Apiol
- ass01 American Shoe Store
- baa01 Boehme & Anderer
- bal01 Bank of Athens, Limited
- bal02 Bank of Athens, Limited
- bam01 Bell’s Asia Minor Steamship Co.
- boa01 Bon Accord
- bam02 Asia Minor Steamship Co., Ltd.
- bcc01 British Chamber of Commerce
- bcp01 Beck & Co’s Pilsener Beer
- bcp02 Beck & Co
- bct01 British Commercial Travellers
- bis01 British India S. N. Company, Limited
- bis02 British India S. N. Company, Limited
- blc01 Browett Lindley & Co.
- blm01 Bibby Line Mail Steamers
- blm02 Bibby Line Mail Steamers
- bor01 Borwick’s Baking Powder
- bov01 Bovril
- bsl01 Berlitz School of Languages
- cah01 Carlton Hotel
- cah02 Carlton Hotel
- cah03 Carlton Hotel
- cbb01 Callard & Bowser’s Butter-Scotch
- ccc01 The Cleopatra Cigarette Co.
- cfe01 Credit Franco-Egyptien
- cgg01 Champagne George Goulet
- cgh01 Cairo Grand Hammam
- che01 Charles Evans
- chl01 Chlorodyne
- clh01 Cigares de la Havane
- cnc01 Comptoir Financier & Commercial D’Egypte
- cne01 Comptoir National D’Escompte
- cpc01 Crown Preserved Coal
- cps01 Cairo Photographic Stores
- crl01 Credit Lyonnais
- cst01 Cairo Sewage Transport Co.
- cun01 Cunard Line
- cun02 Cunard Line
- dia01 Diamonds
- dbc01 Davies Bryan & Co.
- dcl01 DCL Scotch Whisky
- ddg01 Direction der Disconto-Gesellschaft
- deb01 Deutsche Bank
- dix01 Dixon Bros. & Hutchinson
- dlc01 Dr Le Clerc’s Pills
- dll01 Deutsche Levante-Linie
- dim01 Dinneford’s Magnesia
- doa01 Deutsche Ost-Afrika Linie
- doa02 Deutsche Ost-Afrika Linie
- dob01 Deutsche Orientbank
- edl01 Egyptian Delta Light Railways Co., Limited
- eeh01 Eastern Exchange Hotel
- ela01 Edinburgh Life Assurance Company.
- ell01 Ellerman Lines, Limited
- ell02 The Ellerman Lines, Limited
- ell03 Ellermans
- emp01 English Made Petroleum Engines
- ems01 Emulsion Scott
- epi01 English Pension, Italian Riviera
- eph01 Eden Palace Hotel
- epm01 English Penmakers
- erf01 E. R. & F. Turner
- esr01 Egyptian State Railways
- etc01 The Eastern Telegraph Company, Limited
- fpc01 F. Phillips & Co.
- fus01 Fussell’s Cream
- fre01 Freskel
- fre02 Freskel
- gac01 Guardian Assurance Company Limited
- gac02 Guardian Assurance Company Limited
- ggd01 G.G. Drossos & Co.
- ghb01 Grand Hotel Bonnard
- ghc01 Gellatly, Hankey & Co.
- gmc01 G. Marcus & Co.
- gwy01 Gwynne’s Limited
- haa01 Hamburg & Anglo-American
- hbc01 Hotel Bristol Cairo
- hbh01 Hall’s Boar’s Head
- hbr01 Hotel Beau-Rivage
- hcs01 Hotel-Casino San Stefano
- hct01 High-Class Tools
- hdi01 Halls Distemper
- hdi02 Halls Distemper
- hem01 Hemagene Tailleur
- hdr01 H. D. Rawlings Limited
- hjm01 Henry J. Monson
- hob01 Howies Butter
- hsm01 Howies Sterilized Milk
- icc01 Ind Coope Co Ltd.
- ici01 Icilma
- imc01 Irish Manufactured Collars
- inv01 “Investments”
- iob01 Imperial Ottoman Bank
- iob02 Imperial Ottoman Bank
- ish01 Isherwood’s Cairo Cigarettes
- isr01 International Sleeping and Restaurant Cars Company
- jbc01 John B Caffari’s Economical Stores
- jco01 Joseph Comas
- jes01 Joseph Evans Sons
- jma01 J. Margosches
- jma02 J. Margosches
- jma03 J. Margosches
- jma04 J. Margosches
- jma05 J. Margosches
- jma06 J. Margosches
- kbs01 Kupper’s Beer
- kml01 Khedivial Mail Line
- lar01 Larola
- lac01 London Assurance Corporation
- ldb01 Les Diamants Bera
- lea01 Lea and Perrins’
- lem01 Lemco
- lgo01 Ladies & Gents Outfitting (S. Stein)
- lig01 Liniment Géneau
- lip01 Lipton Limited
- liv01 Livadas
- lsh01 London Salisbury Hotel
- luc01 Law Union & Crown Insurance Co.
- map01 Maple & Co.
- mav01 Magasins Victoria
- mco01 Martell Cognac
- mic01 Marine Insurance Company, Limited.
- mil01 Milner’s Safes
- mil02 Milner’s Safes
- mma01 Messageries Maritimes
- mmw01 Masters’ Military Watch
- msp01 McLaren’s Steam Ploughs
- mss01 The Moss S. S. Company, Ltd.
- nbe01 National Bank of Egypt
- nbe02 National Bank of Egypt
- ncs01 Nile Cold Storage
- nea01 Neave’s Food
- nfc01 Nile Flotilla Co
- nfl01 Northern Fire and Life Assurance Coy
- ngi01 Navigation Generale Italienne
- nkh01 New Khedivial Hotel Alexandria
- nkh02 New Khedivial Hotel Cairo
- nll01 Norddeutscher Lloyd
- nll02 Norddeutscher Lloyd
- nml01 The National Mutual Life Association of Australasia, Limited
- nml02 The National Mutual Life Association of Australasia, Limited
- nrp01 Nouveau Remede Purgatif
- nsa01 N. Spathis
- nvh01 New Victoria Hotel
- okl01 Orenstein & Koppel Ltd.
- opl01 Orient-Pacific Line of Royal Mail Steamers
- orm01 Orient-Royal Mail
- pap01 The Papyanni Line
- pdd01 Pilules du Docteur Dehaut
- pel01 Pelican Brand
- per01 Neglected Colds cause Consumption. (Peruna)
- phc01 P. Henderson & Co.’s Line.
- plc01 Peach’s Lace Curtains
- pos01 Peninsular and Oriental S.N. Company
- pos02 P & O Weekly Mail and Passenger Service
- pri01 Prince Line
- pss01 Port Said Savoy Hotel
- pwl01 Papier Wlinsi
- rbi01 Reiser & Binder
- rea01 Royal Exchange Assurance
- ric01 Royal Insurance Coy
- rob01 Robinson’s Barley
- rsn01 Russian Steam Navigation
- rwc01 R. Warner & Co.
- san01 Sanitas
- say01 Sayers
- scf01 Supplement Commercial et Financier
- sde01 Sudan Development & Exploration Company, Limited
- sfp01 Swan Fountain Pen
- sgr01 Sudan Government Railways
- sgr02 Sudan Government Railways
- sha01 Shannon System
- sio01 Sun Insurance Office
- sla01 Standard Life Assurance Company
- sla02 Standard Life Assurance Company
- smc01 Steineman, Mabardi & Co
- smw01 Sandy Macdonald Whisky
- spa01 Spathis Grill Room
- ssw01 Siemens Schuckert Werke
- sun01 Sunlight
- sun02 Sunlight
- sun03 Sunlight
- tas01 T. A. Spartali & Co.
- tce01 Telephone Company of Egypt, Limited
- tcs01 Thos. Cook & Son
- tcs02 Thos. Cook & Son
- tcs03 Thos. Cook & Son
- thc01 Thornes High Class Whiskey
- the01 Therapion
- tnh01 The National Hotel, Cairo
- toh01 The Olympus Hotel
- tsc01 The Seasonable Complaint
- twh01 The Tosh Whiskey
- vdt01 Val de Travers
- wam01 Walker & Meimarachi
- wha01 W. H. Allen
- whc01 White Horse Cellar
- who01 Windsor Hotel
- whr01 Windsor Hotel Restaurant
- wlb01 Wrexham Lager Beer
- wsl01 White Star Line
- yos01 Yost Typewriter
- yos02 Yost
- yos03 Yost
- you01 Youngs
aac01 Allen, Alderson & Co.
xml text: aac01
aan01 Anglo-American Nile Streamer & Hotel Coy.
xml text: aan01
aan02 Anglo-American Nile Streamer & Hotel Coy.
xml text: aan02
aan03 Hamburg & Anglo-American Nile Co.
xml text: aan03
aan04 Anglo-American Nile Streamer & Hotel Coy.
xml text: aan04
aaw01 Ariston Aerated Waters
xml text: aaw01
abp01 The Artesan Boring and Prospecting Company
xml text: abp01
abw01 Alexandria Bonded Warehouse Company, Ltd.
xml text: abw01
adr01 Au de Rouge
xml text: adr01
aeb01 The Anglo-Egyptian Bank
xml text: aeb01
afc01 African Commerce
xml text: afc01
akl01 Arthur Koppel, Ltd.
xml text: akl01
all01 Anchor Line, Limited
xml text: all01. Destinations, ship names, and dates change.
all02 Anchor Line, Limited
xml text: all02. Destinations, ship names, and dates change.
alf01 Allenburys Foods
xml text: alf01
als01 Austrian Lloyd’s Steam Navigation
xml text: als01. Ship dates, names, and captains’ names change. Near bottom, destination dates change.
als02 Austrian Lloyd’s Steam Navigation
xml text: als02. Ship dates, names, and captains’ names change. Near bottom, destination dates change.
api01 Apiol
xml text: api01
ass01 American Shoe Store
xml text: ass01
baa01 Boehme & Anderer
xml text: baa01
bal01 Bank of Athens, Limited
xml text: bal01
bal02 Bank of Athens, Limited
xml text: bal02
bam01 Bell’s Asia Minor Steamship Co.
xml text: bam01
boa01 Bon Accord
xml text: boa01
bam02 Asia Minor Steamship Co., Ltd.
xml text: bam02
bcc01 British Chamber of Commerce
xml text: bcc01. Ship names and dates on lines 6 and 9 change.
bcp01 Beck & Co’s Pilsener Beer
xml text: bcp01
bcp02 Beck & Co
xml text: bcp02
bct01 British Commercial Travellers
xml text: bct01
bis01 British India S. N. Company, Limited
xml text: bis01
bis02 British India S. N. Company, Limited
xml text: bis02
blc01 Browett Lindley & Co.
xml text: blc01
blm01 Bibby Line Mail Steamers
xml text: blm01. Ship names, weights, dates change.
blm02 Bibby Line Mail Steamers
xml text: blm02. Ship names, weights, dates change.
bor01 Borwick’s Baking Powder
xml text: bor01
bov01 Bovril
xml text: bov01
bsl01 Berlitz School of Languages
xml text: bsl01
cah01 Carlton Hotel
xml text: cah01
cah02 Carlton Hotel
xml text: cah02
cah03 Carlton Hotel
xml text: cah03
cbb01 Callard & Bowser’s Butter-Scotch
xml text: cbb01
ccc01 The Cleopatra Cigarette Co.
xml text: ccc01
cfe01 Credit Franco-Egyptien
xml text: cfe01
cgg01 Champagne George Goulet
xml text: cgg01
cgh01 Cairo Grand Hammam
xml text: cgh01
che01 Charles Evans
xml text: che01
chl01 Chlorodyne
xml text: chl01
clh01 Cigares de la Havane
xml text: clh01
cnc01 Comptoir Financier & Commercial D’Egypte
xml text: cnc01
cne01 Comptoir National D’Escompte
xml text: cne01
cpc01 Crown Preserved Coal
xml text: cpc01
cps01 Cairo Photographic Stores
xml text: cps01
crl01 Credit Lyonnais
xml text: crl01
cst01 Cairo Sewage Transport Co.
xml text: cst01
cun01 Cunard Line
xml text: cun01
cun02 Cunard Line
xml text: cun02
dia01 Diamonds
xml text: dia01
dbc01 Davies Bryan & Co.
xml text: dbc01
dcl01 DCL Scotch Whisky
xml text: dcl01
ddg01 Direction der Disconto-Gesellschaft
xml text: ddg01
deb01 Deutsche Bank
xml text: deb01
dix01 Dixon Bros. & Hutchinson
xml text: dix01
dlc01 Dr Le Clerc’s Pills
xml text: dlc01
dll01 Deutsche Levante-Linie
xml text: dll01. Expected at Alexandria ship names, dates, and destinations change.
dim01 Dinneford’s Magnesia
xml text: dim01
doa01 Deutsche Ost-Afrika Linie
xml text: doa01
doa02 Deutsche Ost-Afrika Linie
xml text: doa02
dob01 Deutsche Orientbank
xml text: dob01
edl01 Egyptian Delta Light Railways Co., Limited
xml text: edl01
eeh01 Eastern Exchange Hotel
xml text: eeh01
ela01 Edinburgh Life Assurance Company.
xml text: ela01
ell01 Ellerman Lines, Limited
xml text: ell01
ell02 The Ellerman Lines, Limited
xml text: ell02
ell03 Ellermans
xml text: ell03
emp01 English Made Petroleum Engines
xml text: emp01
ems01 Emulsion Scott
xml text: ems01
epi01 English Pension, Italian Riviera
xml text: epi01
eph01 Eden Palace Hotel
xml text: eph01
epm01 English Penmakers
xml text: epm01
erf01 E. R. & F. Turner
xml text: erf01
esr01 Egyptian State Railways
xml text: esr01
etc01 The Eastern Telegraph Company, Limited
xml text: etc01
fpc01 F. Phillips & Co.
xml text: fpc01
fus01 Fussell’s Cream
xml text: fus01
fre01 Freskel
xml text: fre01
fre02 Freskel
xml text: fre02
gac01 Guardian Assurance Company Limited
xml text: gac01
gac02 Guardian Assurance Company Limited
xml text: gac02
ggd01 G.G. Drossos & Co.
xml text: ggd01
ghb01 Grand Hotel Bonnard
xml text: ghb01
ghc01 Gellatly, Hankey & Co.
xml text: ghc01
gmc01 G. Marcus & Co.
xml text: gmc01
gwy01 Gwynne’s Limited
xml text: gwy01
haa01 Hamburg & Anglo-American
xml text: haa01
hbc01 Hotel Bristol Cairo
xml text: hbc01
hbh01 Hall’s Boar’s Head
xml text: hbh01
hbr01 Hotel Beau-Rivage
xml text: hbr01
hcs01 Hotel-Casino San Stefano
xml text: hcs01
hct01 High-Class Tools
xml text: hct01
hdi01 Halls Distemper
xml text: hdi01
hdi02 Halls Distemper
xml text: hdi02
hem01 Hemagene Tailleur
xml text: hem01
hdr01 H. D. Rawlings Limited
xml text: hdr01
hjm01 Henry J. Monson
xml text: hjm01
hob01 Howies Butter
xml text: hob01
hsm01 Howies Sterilized Milk
xml text: hsm01
icc01 Ind Coope Co Ltd.
xml text: icc01
ici01 Icilma
xml text: ici01
imc01 Irish Manufactured Collars
xml text: imc01
inv01 “Investments”
xml text: inv01
iob01 Imperial Ottoman Bank
xml text: iob01
iob02 Imperial Ottoman Bank
xml text: iob02
ish01 Isherwood’s Cairo Cigarettes
xml text: ish01
isr01 International Sleeping and Restaurant Cars Company
xml text: isr01
jbc01 John B Caffari’s Economical Stores
xml text: jbc01
jco01 Joseph Comas
xml text: jco01
jes01 Joseph Evans Sons
xml text: jes01
jma01 J. Margosches
xml text: jma01
jma02 J. Margosches
xml text: jma02
jma03 J. Margosches
xml text: jma03
jma04 J. Margosches
xml text: jma04
jma05 J. Margosches
xml text: jma05
jma06 J. Margosches
xml text: jma06
kbs01 Kupper’s Beer
xml text: kbs01
kml01 Khedivial Mail Line
xml text: kml01
lar01 Larola
xml text: lar01
lac01 London Assurance Corporation
xml text: lac01
ldb01 Les Diamants Bera
xml text: ldb01
lea01 Lea and Perrins’
xml text: lea01
lem01 Lemco
xml text: lem01
lgo01 Ladies & Gents Outfitting (S. Stein)
xml text: lea01
lig01 Liniment Géneau
xml text: lig01
lip01 Lipton Limited
xml text: lip01
liv01 Livadas
xml text: liv01
lsh01 London Salisbury Hotel
xml text: lsh01
luc01 Law Union & Crown Insurance Co.
xml text: luc01
map01 Maple & Co.
xml text: map01
mav01 Magasins Victoria
xml text: mav01
mco01 Martell Cognac
xml text: mco01
mic01 Marine Insurance Company, Limited.
xml text: mic01
mil01 Milner’s Safes
xml text: mil01
mil02 Milner’s Safes
xml text: mil02
mma01 Messageries Maritimes
xml text: mma01
mmw01 Masters’ Military Watch
xml text: mmw01
msp01 McLaren’s Steam Ploughs
xml text: msp01
mss01 The Moss S. S. Company, Ltd.
xml text: mss01. Dates, destinations, and ship names in 5th and 6th paragraphs from end change.
nbe01 National Bank of Egypt
xml text: nbe01
nbe02 National Bank of Egypt
xml text: nbe02
ncs01 Nile Cold Storage
xml text: ncs01
nea01 Neave’s Food
xml text: nea01
nfc01 Nile Flotilla Co
xml text: nfc01
nfl01 Northern Fire and Life Assurance Coy
xml text: nfl01
ngi01 Navigation Generale Italienne
xml text: ngi01. Changes monthly? Ad in French.
nkh01 New Khedivial Hotel Alexandria
xml text: nkh01
nkh02 New Khedivial Hotel Cairo
xml text: nkh02
nll01 Norddeutscher Lloyd
xml text: nll01
nll02 Norddeutscher Lloyd
xml text: nll02. Ship names, weights, dates change.
nml01 The National Mutual Life Association of Australasia, Limited
xml text: nml01
nml02 The National Mutual Life Association of Australasia, Limited
xml text: nml02
nrp01 Nouveau Remede Purgatif
xml text (containing errors?): nrp01
nsa01 N. Spathis
xml text: nsa01
nvh01 New Victoria Hotel
xml text: nvh01
okl01 Orenstein & Koppel Ltd.
xml text: okl01
opl01 Orient-Pacific Line of Royal Mail Steamers
xml text: opl01. Outwards/homewards ship names and sailing dates change. Variant of orm01.
orm01 Orient-Royal Mail
xml text: Outwards/homewards ship names and sailing dates change. Variant of opl01. orm01
pap01 The Papyanni Line
xml text: pap01. Dates, ships and destinations vary in third paragraph.
pdd01 Pilules du Docteur Dehaut
xml text: pdd01
pel01 Pelican Brand
xml text: pel01
per01 Neglected Colds cause Consumption. (Peruna)
xml text: per01
phc01 P. Henderson & Co.’s Line.
xml text: phc01. Ship names, weights, dates, and destinations change.
plc01 Peach’s Lace Curtains
xml text: plc01
pos01 Peninsular and Oriental S.N. Company
xml text: pos01. Text of third paragraph and ship names and dates in the table change.
pos02 P & O Weekly Mail and Passenger Service
xml text: pos02
pri01 Prince Line
xml text: pri01
pss01 Port Said Savoy Hotel
xml text: pss01
pwl01 Papier Wlinsi
xml text: pwl01
rbi01 Reiser & Binder
xml text: rbi01
rea01 Royal Exchange Assurance
xml text: rea01
ric01 Royal Insurance Coy
xml text: ric01
rob01 Robinson’s Barley
xml text: rob01
rsn01 Russian Steam Navigation
xml text: rsn01
rwc01 R. Warner & Co.
xml text: rwc01
san01 Sanitas
xml text: san01
say01 Sayers
xml text: say01
scf01 Supplement Commercial et Financier
xml text: scf01
sde01 Sudan Development & Exploration Company, Limited
xml text (with errors): sde01
sfp01 Swan Fountain Pen
xml text: sfp01
sgr01 Sudan Government Railways
xml text: sgr01
sgr02 Sudan Government Railways
xml text: sgr02
sha01 Shannon System
xml text: sha01
sio01 Sun Insurance Office
xml text: sio01
sla01 Standard Life Assurance Company
xml text: sla01
sla02 Standard Life Assurance Company
xml text: sla02
smc01 Steineman, Mabardi & Co
xml text: smc01
smw01 Sandy Macdonald Whisky
xml text: smw01
spa01 Spathis Grill Room
xml text: spa01
ssw01 Siemens Schuckert Werke
xml text: ssw01
sun01 Sunlight
xml text: sun01
sun02 Sunlight
xml text: sun02
sun03 Sunlight
xml text: sun03
tas01 T. A. Spartali & Co.
xml text: tas01
tce01 Telephone Company of Egypt, Limited
xml text: tce01
tcs01 Thos. Cook & Son
xml text: tcs01
tcs02 Thos. Cook & Son
xml text: tcs02
tcs03 Thos. Cook & Son
xml text: tcs03
thc01 Thornes High Class Whiskey
xml text: thc01
the01 Therapion
xml text: the01
tnh01 The National Hotel, Cairo
xml text: tnh01
toh01 The Olympus Hotel
xml text: toh01
tsc01 The Seasonable Complaint
xml text: tsc01
twh01 The Tosh Whiskey
xml text: twh01
vdt01 Val de Travers
xml text: vdt01
wam01 Walker & Meimarachi
xml text: wam01
wha01 W. H. Allen
xml text: wha01
whc01 White Horse Cellar
xml text: whc01
who01 Windsor Hotel
xml text: who01
whr01 Windsor Hotel Restaurant
xml text: whr01
wlb01 Wrexham Lager Beer
xml text: wlb01
wsl01 White Star Line
xml text: wsl01 produced by Madison Flick.
yos01 Yost Typewriter
xml text: yos01
yos02 Yost
xml text: yos02
yos03 Yost
xml text: yos03
you01 Youngs
xml text: you01


Weekly musing #2 - happy Easter!
I've been busy painting easter eggs this week. Happy hunting!
Thoughts on verification and validation in Bitcoin projects
To recap the difference between verification and validation:
- Verification:
- Does the software work right (according to the specified requirements)?
- Validation:
- Does it do the right thing (are the requirements correct, consistent, complete, ...)?
Thinking globally
If Bitcoin manages to grow out of its current stagnation - and I remain optimistic - then it could become a component of human civilization that is just as important as the Internet, or whatever will replace our global communications medium in 20-100 years. We want to be able to trust this Bitcoin software with our money, which can be life and death matter.
Imagine you need to pay for medical treatment for yourself or a loved one using Bitcoin. What if the system has a bug and now your funds have been transferred to another recipient than intended?
It is very important that we ensure the best possible engineering practices in our work on this new technology. In our automated world, software errors are becoming increasingly costly. The "high-end" ones listed there are in the region of up to $500M . I offer a humble prediction:
The most costly software mistakes of the near future will belong to cryptocurrency projects.
Hopefully not Bitcoin though
At this time, Bitcoin market cap stands at around $19B . A serious bug could easily halve this, leading to severe losses for many individual users. Nobody wants to be the responsible developer, reviewer, tester or project leader who let a major bug slip through the cracks. Fortunately, as I look around today, there are plenty of source projects which work in exemplary ways from which we can draw inspiration for Bitcoin and avoid pitfalls. So let's look outside of our cryptocurrency box for a moment.
Virtuous example 1: Linux kernel project
Around April 2003 (as far as I can tell), Craig Thomas of Open Source Development Lab released a paper, which I would encourage you to have a look at (or read again) if you have some free time on this long weekend:
"Improving Verification, Validation, and Test of the Linux Kernel: the Linux Stabilization Project" [2].
At the time, the Linux kernel was moving towards version 2.6, experiencing great uptake, with lots of contributors growing the size of the project. Reading just the first four sections of the paper, the similarities to the state of the Bitcoin "project" (in a bigger sense) are quite evident. How does this sound:
"Since there are no formal specifications for many of the features of the
kernelprotocol" (replacement mine)
Or this:
"While many people contribute features and patches to the
kernelprotocol, very few people actually take a disciplined approach to testing it."
Sound familiar?
Looking back now, we can say that the Linux project did a good job at solving its problems:
- lack of specification: addressed through the Linux Standards Base
- lack of test coverage: addressed through the Linux Test Project
We would do well to emulate Linux in setting up similar projects for Bitcoin, which could span various client implementations while focusing on a set of 'base' protocol features. After all, our various client projects (Core, Knots, XT, Classic, Bitcoin Unlimited, etc.) are similar to Linux distributions based loosely off a common "kernel" of features.
It is my hope that someday, we will have a "Bitcoin Standards Base" and a "Bitcoin Test Project" to cover multiple needs in the industry and advise people, whether they be users wanting to assist or projects/businesses wanting to use the technology or develop it further.
Virtuous example 2: Wikimedia organization
Another good example of a project to emulate in terms of openness is Wikimedia.org.
They have their entire code review and integration test pipeline publicly visible, including for the MediaWiki framework, the software that powers Wikipedia. Some examples of the verification related data they publish:
- Wikimedia CI dashboard: https://grafana.wikimedia.org/dashboard/db/continuous-integration?orgId=1
- Jenkins CI server: https://integration.wikimedia.org/ci/
- Code review (using Gerrit): https://gerrit.wikimedia.org/r/#/q/status:open
- Code test coverage: https://doc.wikimedia.org/cover/
- Test cluster health stats: https://tools.wmflabs.org/nagf/?project=integration
Having this information publicly available greatly helps those who want to get involved, whether as developers or testers.
This is all built on free or open source software, so it feeds an ecosystem that can grow into the future, unconstrained by small-scale profit motives.
For a Bitcoin client, I would presume it would be natural that not only the software is open source, but also all the data and research related to it - i.e. input and results of tests, simulations etc. Open source, open data (the blockchain is a perfect example), open standards [3], open access. Did I miss anything? Maybe "open infrastructure/integration" - ensuring that the project infrastructure allows individuals and other organization to easily "plug in" through a variety of software interfaces, to feed in data and extract it.
Virtuous example 3: NASA (you said you want to go the moon!)
In my software career, I have come across extremely helpful bits within the mountains of information that NASA publishes. A good point to start would be https://code.nasa.gov/ !
If we ignore the "Projects" for now, and navigate to the "Guide" section, we find some interesting further links:
Software release at NASA is governed by NPR 2210.1C. NPR 2210.1C establishes the roles, responsibilities, and procedures for reporting, reviewing, and releasing software under various conditions, including open source.
The link which I've embedded goes to NODIS, the NASA Online Directives Information System - a search engine for information on agency directives. This looks dry, but contains a ton of useful information, if one digs a little. For example, the previous "Guide" page also mentions:
NASA has established formal software engineering requirements in NPR 7150.2A. These requirements govern all software development activities and must be followed throughout a project's development life cycle.
We can use NODIS to locate this "NPR 7150.2A". Actually, it tells us that it has been replaced by an updated revision, NPR 7150.2B:
https://nodis3.gsfc.nasa.gov/displayDir.cfm?Internal_ID=N_PR_7150_002B_
In the preface, this contains an interesting picture to give an overview of the kinds of software that NASA needs to manage.
Let's say you had to pay for your moon rocket in bitcoins. Where would you put Bitcoin software, in that classification?
The parts of NPR7150.2B that will be of more interest as potential inspiration to those concerned with serious software development are the "meat chapters" 3-6:
- Chapter 3: Software Management Requirements
- Chapter 4: Software Engineering Life-Cycle Requirements
- Chapter 5. Supporting Software Life-Cycle Requirements
- Chapter 6. Recommended Software Documentation Contents
Chapter 3, while apparently about "management" (rolls eyes), has valuable guidance in there.  Especially section 3.7, "Safety-critical software" - this is not just applicable to space station software! Let's take some tidbits of advice!
a. Safety-critical software is initialized, at first start and at restarts, to a known safe state.
d. Operator overrides of safety-critical software functions require at least two independent actions by an operator.
g. Safety-critical software performs integrity checks on inputs and outputs to/from the software system.
k. Software provides error handling of safety-critical functions.
Ch. 4 contains this piece of wisdom:
4.1.1 The requirements phase is one of the most important phases of software engineering. Studies show that the top problems in the software industry are due to poor requirements elicitation, inadequate requirements specification, and inadequate management of changes to requirements. Requirements provide the foundation for the entire life-cycle, as well as for the software product.
And it goes on to say about testing (for "project manager" you can also read "lead maintainer", "The Developer", "CTO" or just "you" as a software developer in a Bitcoin context):
4.5.3 The project manager shall perform software testing. [SWE-066]
Note: A best practice for Class A, B, and C software projects is to have formal software testing planned, conducted, witnessed, and approved by an independent organization outside of the development team. Testing could include software integration testing, systems integration testing, validation testing, end-to-end testing, acceptance testing, white and black box testing, decision and path analysis, statistical testing, stress testing, performance testing, regression testing, qualification testing, simulation, and others. The use of automated software testing tools is also to be considered in software testing. Test breadth and accuracy can be increased through the use of test personnel independent of the software design and implementation teams, software peer reviews and inspections of software test procedures and software test results, and employing impartial test witnesses.
Fortunately, if you keep your code, tests and records publicly accessible, you are well on your way to independent review! (However, occasionally it pays to call in experts to assist, if you are involved in Bitcoin in some professional endeavour.)
Having more diversity of implementations around the common protocol also helps keep everyone's work in check.
Acting locally - what can we do to strengthen our projects (e.g. Bitcoin Unlimited)
First, we can (re-)acquaint ourselves with IEEE Std 830-1998 (IEEE Recommended Practice for Software Requirements Specifications) which gives extremely solid guidance on how to construct good software requirements specs. Of course, applying it is needed, but reading is definitely a first step.
Technical proposals are currently often too informal. This applies to technical BUIPs as well, which still lag behind BIPs or proposal like "ToTheMoon"'s Extension Blocks a little in terms of rigor.
Next up, we need to follow better practices in constructing the software, verifying and validating properly. Get the project's test results (records) to be archived in a decentralized way (i.e. in a separate software repository), instead of in ephemeral comment threads on Github. Of course, testers should sign off on test evidence in some way. Signed commits in a Git repository would do the trick.
Regression test suites are lacking coverage and need to be extended. It not surprising when requirements are lacking - developers tend to interpret everything according to their own whims in that case.
Regression tests should be run automatically and regularly, to catch any bugs that may creep in with future changes. Bitcoin projects attract a wide spectrum of practitioners, with different levels of experience etc. Even experienced software developers can struggle for quite some time with the complexities of the current (somewhat legacy) codebase. During this time, they are apt to make more mistakes. Good test coverage is the safety net that's nearly always there
Currently, BU uses Travis for continuous integration testing on pull requests and merge commits. I raised BUIP052 specifically to add more test coverage using daily/nightly runs of the full test suite (which is currently only partially exercised by Travis). Nowadays there are a lot of options when it comes to CI services, and they are affordable to even small projects (many offer free time to free software projects). Other contributors have pointed out additional ways of approaching the problem, such as build farms with hardware run by project contributors.
A good exercise for a Bitcoin project is to draw up a proper V&V plan describing how it's handled, the infrastructure, what records are produced, etc. I haven't seen such a document in any of the Satoshi client projects so far.
If there is anything more frustrating for a developer than not knowing what the overall test status is of the code they are working on, then it is having to wait for a long time for tests to finish. I submitted a little tool to BU and Classic, which can execute Bitcoin's C++ unit tests in parallel on a multi-core machine.
https://github.com/BitcoinUnlimited/BitcoinUnlimited/pull/452
On my workstation this cuts down the time from 199s to 59s, for a full run of all unit tests. Practically, it is of course limited by the longest test. Still, it helps a bit.
Wishing all of you a peaceful Easter weekend!
Footnotes
[1] https://en.wikipedia.org/wiki/Pysanka
Easter egg graphic derived from original art by
http://artalbum.org.ua/ru/site/license - http://artalbum.org.ua/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=38482200>


{% extends 'base.html' %} {% block title %}{{ guild.name }}{% endblock %} {% block buttons_main %} {% include 'sidebar_buttons/home_deactive.html' %} {% endblock %} {% block buttons_channels %} {% include 'chat/sidebar_buttons/guild_redirect.html' with guild=guild %} {% include 'chat/sidebar_buttons/settings_main_deactive.html' with guild=guild %} {% include 'chat/sidebar_buttons/settings_channels_deactive.html' with guild=guild %} {% include 'chat/sidebar_buttons/settings_members_deactive.html' with guild=guild %} {% include 'chat/sidebar_buttons/settings_bans_active.html' with guild=guild %} {% include 'chat/sidebar_buttons/settings_links_deactive.html' with guild=guild %} {% endblock %} {% block main %}


Distributed systems
7. Exercises
ssh (Secure Shell)
cryptographic network protocol
used for operating network services securely over unsecured network
important to cloud computing
- avoiding exposing a cloud-based virtual machines directly on the internet
Typically used for:
- romote command-login and execution
standart TCP port for SSH is 22
ssh sends encrypted messages and doesn't disclose passwords in plaintext
however files could be maybe decrypted by NSA as Snowden's case shows (source Wikipedia)
ssh - generating keys
- ssh-keygen
- populating directory with public/private key pair
- id_rsa - file in which private key is by default stored
- id_rsa.pub - file in which public key is stored
- private key is never transferred through the network during authentication
- SSH has to ensure that the person offering the public key also owns the private key
using ssh
- The command syntax is as follows:
- In our case it will be, for instance:
SCP(Secure copy protocol)
- used to copy files and folders from one machine to another using SSH
- main syntax
- scp username:ip_addres_a:/path/to/file username@ip_addres_b:/path/to/destination
- syntax for transferring file from local machine to remote machine
- scp /path/to/file username@<IP_ADDRESS>:/home/username/
ICMP (Internet control message protocol)
- error-reporting protocol
- supporting protocol in the Internet protocol suite (TCP/IP)
- ping and traceroute uses ICMP packets
- all network-connected devices can process ICMP messages
Computer networking utilities
- ping ping tests the reachability of a host
- ping <IP_ADDRESS>
- ping uses ICMP packets
- netcat - useful tool for scanning remote system ports
- uses TCP or UDP protocols
- examples
- nc google.com 443
- nc <IP_ADDRESS> 22
- can be used to perform http requests:
- printf "GET /hypertext/WWW/TheProject.html HTTP/1.0\r\nHost:
info.cern.ch\r\n\r\n" | nc info.cern.ch 80nc <IP_ADDRESS> 22
- nmap - useful tool used by system and network administrators
- nmap -p 80 -sT google.com
- netstat -na | find "8080" - to check specific port in windows
- netstat -na | grep "8080" - to check specific port in unix based systems
FTP (File Transfer Protocol)
uses two separate TCP connectons (control and data connections)
way of exchanging files between client and server
FTP clients provide easy to use graphics user interface
Examples of FTP applications
Configuring python on an instance
python installation
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install python3
sudo apt-get install python-pip python-dev
Ansible installation
sudo pip install python-openstackclient
sudo pip install shade
sudo apt-get install ansible
Lamport's logical clocks
- Task 5.1:
- The figure below shows events for each of two processes
$P_1$ and $P_2$. Arrows between processes denote message
transmission. Assign corresponding timestamps according to
the Lamport's algorithm for logical clocks
Lamport's logical clocks
- Task 5.2:
- The figure shows events for each of three processes
$P_1$, $P_2$ and $P_3$. Arrows between processes denote message
transmission. Assign arbitrary labels(timestamps) according to
the Lamport's algorithm for logical clocks
TCP Socets in Java
- Task 6.1:
- Write a Java class that implements TCP Server which
sends time to any client that contacts it.
- Task 6.2:
- Write a Java class that implements a client which contact
server from the task 1 and prints received message(time) on the
standard output (screen). It should be possible to call client
from the command line (terminal) with the port number as the only
parameter
- Task 6.3:
- a) run both classes and test it on your local machine.
- b) deploy server class on you openstack instance an run it on
the port 8080 and than access it using client from your local machine.


|
SLIDE - Each stone may move
one or two cells forward (no
diagonals) or sideways to an empty cell.
|
Sideways moves are only allowed when there are no forward moves. |
|
There are no captures in this game. |
|
|
EVADE - If the
stone faces another stone (either color) directly forward, then it may also move diagonally forward any number of empty squares.
Several evasive moves in a row are allowed, using the same stone.
|
At the end of such a series of evasive moves
the player have an additional sliding move available using the
same stone. |
|
|
GOAL - A player who fills the opposite two
rows wins. |
|


Harsh Vijeta4th year CS UndergradLooking for SDE Role |
Highly passionate for building software and I intend to be a part of an organisation where I can constantly learn and develop my technical and management skill and make best use of it for the growth and organisation . I look forward to establishing myslef by by adapting new technologies as well.
| College Name | C.G.P.A | Course |
|---|---|---|
| BIT Mesra Ranchi | 8.48 | B.E/B.Tech |
| DAV Public School | 86.6 | 10th |
| Veena Vidya Niketan | 81.6 | 12th |
Data Structure and Algorithm
Competitive Programming
Codechef (1892)4*
Codeforces(1386)
Hackerearth (1496)
Generates a Pseudo Code for C++ Programs through Syntax and Keyword Analysis
C , C++ , SQL
Operating System , DBMS , Data Structure and Algorithm
| Contacts Query |


your map url is
you can change your email address:
you can update your password:
click the button below to change password protection for your account.
password enabled


Past successful missions are marked in red, future missions in blue.
Failed missions are marked white.


Address: 1234 Street Name, City, US
Phone:<PHONE_NUMBER>
Email<EMAIL_ADDRESS>Working Days/Hours: Mon - Sun / 9:00AM - 8:00PM
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Directive for proxying jQuery file upload
mac-upload-route
Type: String
File upload route
mac-upload-submit
Type: Function
Function to call on submit
mac-upload-success
Type: Function
Upload success callback
mac-upload-error
Type: Function
Upload error callback
mac-upload-always
Type: Function
Callback for completed (success, abort or error) requests
mac-upload-previews
Type: Expression
List of uploaded files {Array}
mac-upload-progress
Type: Function
Upload progress callback
mac-upload-drop-zone
Type: String
The selector that we can drop files onto
mac-upload-form-data
Type: Expression
Additional form data {Array|Object|Function|FormData}
mac-upload-options
Type: Expression
Additional options to pass to jquery fileupload


What is this?
This is a sandbox / solver for The Impossible Chessboard Puzzle. I first heard about this puzzle on the YouTube channel, 3Blue1Brown. I'd recommend watching that video if you haven't already!
If you're interested in how this thing is made, check out the source code on Github.


Use this section to upload items that all speakers will see.
Use the special name speaker details for the upload and the speakers will see this as the speaker details link in their dashbaord.
Current Uploads for this conference:
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If you prefer not to display a headshot, please upload your organization's logo instead.
Your current headshot:
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Found
You haven't uploaded a headshot yet.
If you are being reimbursed and/or paid by CCAW, please upload your W9.
You can download a W9 here: https://www.irs.gov/pub/irs-pdf/fw9.pdf
You've already uploaded your W9 form.
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Please upload any handouts you will use with your presentation.
Current handouts:
Select the presentation you’d like to upload handouts for.
If this list is empty, please complete a presentation proposal first.


Skills
Languages
Ruby, JavaScript, CSS, HTML
Frameworks
Ruby on Rails, React, Sinatra, Active Admin, Nokogiri, GitHub
APIs
Google APIs, Quickbooks, Affirm, Paypal, Stripe, ParcelPro, iVouch, Reviews.io
Education
General Assembly
Web Development Immersive · 2013
University of Pennsylvania
Bachelor of Arts, Criminology · 2012
Contact
<EMAIL_ADDRESS>Relevant Work Experience
Enchanted Diamonds
Full Stack Web Developer 2014-present
Integrated a number of APIs including payment gateways for customers and administrative tools
for the company
Built responsive templates for all email communications: promotional and informational emails
generated for users, as well as internal communications for administrators
Wrote numerous algorithms to acquire both image and video media featured prominently on-site
Increased online visibility of the company by making web pages compliant with SEO guidelines
Increased point of sale conversion rates by actively working with a designer to create an optimized
checkout experience
LINGUISTIC DATACONSORTIUM
Philadelphia, PA
Data Scout / Annotator (2011 - 2013)
Assisted in the building of a corpus containing multi-modal data
Analyzed and annotated visual media for specific features


Rate Limiting
options for rate limiting requests from Voyageone.
Voyageone will adhere to the rate limits agreed upon on the site configuration specification.
It is recommended that the API also enforce similar rate limits to ensure that both systems are operating
within the expected parameters. Some considerations to include when deciding on a rate limit:
- Number of products per account
- Each seller will be restricted to a predefined number of products they can list on your site.
-
The API rate limits should be calculated such that each product could be updated within a reasonable window.
Excessive rate limiting can hinder a seller’s ability to manage multiple site listings.
- Rate limit for API requests per account
-
Support for rate limiting requests per time interval will be supported. This can be defined at a seller
or integration level. Example, 1000 requests per minute per seller.
- SLAs for responses to API requests
Should the rate limit be exceeded, the API response should return the following Error:
| Error ID |
Example Error Message |
| 3002 (RateLimitExceeded) |
Rate limit exceeded. Please throttle your requests |
Example error response
- {
- "Status": "Fail",
- "PendingUri": null,
- "Errors": [
- {
- "ID": "RateLimitExceeded",
- "ErrorCode": "300",
- "Message": "Rate limit exceeded. Please throttle your
requests."
- }
- ],
- "ResponseBody": null
- }


| Package | Description |
|---|---|
| org.elkoserver.foundation.actor |
Elko server classes representing entities with remote connections to a server.
|
| org.elkoserver.foundation.server |
Core common server implementation classes for Elko.
|
| org.elkoserver.foundation.server.metadata |
Metadata objects used in the management of Elko servers and communicated
between them.
|
| org.elkoserver.server.context |
The Elko Context Server.
|
| org.elkoserver.server.workshop |
The Elko Workshop Server.
|
| Modifier and Type | Method and Description |
|---|---|
void |
BasicProtocolHandler.auth(BasicProtocolActor from,
AuthDesc auth,
OptString label)
JSON method for the 'auth' message.
|
boolean |
BasicProtocolActor.doAuth(BasicProtocolHandler handler,
AuthDesc auth,
String label)
Authorize (or refuse authorization for) a connection for this actor.
|
static JSONLiteral |
Actor.msgAuth(Referenceable target,
AuthDesc auth,
String label)
Create an 'auth' message.
|
static JSONLiteral |
Actor.msgAuth(String target,
AuthDesc auth,
String label)
Create an 'auth' message.
|
| Modifier and Type | Method and Description |
|---|---|
MessageHandlerFactory |
ServiceFactory.provideFactory(String label,
AuthDesc auth,
Set<String> allow,
List<String> serviceNames,
String protocol)
Provide a message handler factory for a new listener.
|
| Modifier and Type | Field and Description |
|---|---|
static AuthDesc |
AuthDesc.theOpenAuth
Singleton open authorization descriptor.
|
| Modifier and Type | Method and Description |
|---|---|
AuthDesc |
ServiceDesc.auth()
Get this service's authorization configuration.
|
AuthDesc |
HostDesc.auth()
Get this host's authorization information.
|
static AuthDesc |
AuthDesc.fromProperties(BootProperties props,
String propRoot,
Trace appTrace)
Produce an AuthDesc object from information contained in the server
configuration properties.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
AuthDesc.verify(AuthDesc auth)
Check an authorization.
|
| Constructor and Description |
|---|
HostDesc(String protocol,
boolean isSecure,
String hostPort,
AuthDesc auth,
int retryInterval,
boolean dontLog)
Constructor.
|
ServiceDesc(String service,
OptString hostport,
OptString protocol,
OptString label,
AuthDesc auth,
OptString failure,
OptInteger providerID)
JSON-driven constructor.
|
ServiceDesc(String service,
String hostport,
String protocol,
String label,
AuthDesc auth,
String failure,
int providerID)
Direct constructor.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
InternalActor.doAuth(BasicProtocolHandler handler,
AuthDesc auth,
String label)
Do the actual work of authorizing an actor.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
WorkshopActor.doAuth(BasicProtocolHandler handler,
AuthDesc auth,
String label)
Do the actual work of authorizing an actor.
|
Copyright © 2017. All rights reserved.


{% extends 'base-datatables.html' %} {% load static from staticfiles %} {% load currency %} {% block content %}
{{ shipment.partner.name }}
{{ shipment.shipment_date|date:"Y-m-d" }}
{{ shipment }}
{{ shipment.store_release }}
{{ shipment.donor }}
{{ shipment.num_packages }}
{{ shipment.price_local|format_local }}
{{ shipment.price_usd|format_usd }}
{{ shipment.get_verbose_status }}
{{ shipment.status_note }}


As a huge part of the construction tech. industry, PlanGrid was in desperate need of a new webstie.
We worked with the both founders and created new designs for the key pages on the website before moving into creating an illustration style that fit their already established brand and could be use in their marketing material. As a result, Plangrid has been able to leverage their new website to extended their team and nurtured a company culture that truly speaks to what it’s like when a group of computer scientist and construction engineers come together to create a great product.
INVOLVEMENT
- Website Design
- Icon Design
- Illustration


We provide excellent services
Lorem simply dummy is a texted of the printing costed and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type. Lorem simply dummy is a texted of the printing costed and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type.
According to the National Oceanic and Atmospheric Administration, Ted, Scambos, NSIDClead scentist, puts the potentially record low maximum sea ice extent tihs year down to low ice extent in the Pacific and a late drop in ice extent in the Barents Sea.
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Lorem ipsum dolor sit amet, consectetur adipisicing elit. Qui maxime commodi fugit quasi sequi temporibus, ad necessitatibus quaerat officia culpa eius reprehenderit suscipit. Quaerat cum odit praesentium expedita, iusto voluptates.


Input devices
Week 13
input devices
Tasks
measure something: add a sensor to a microcontroller board that you have designed and read it
Sound Board (Electret Condenser Microphone)
After watching Neil's lesson and distribute each board within our group i got the sound challenge, the microboard. I started cutting ther PCB's at the modela with the 1/8 endmill. In one hour i milled and cutted all the group boards.
Colecting the components
I then started to weld the components in the board.
welding process and final board
I've finally get to connect, after installing all the dependencies, downloading the C file the Makefile, and the PY code just typed:
sudo make -f hello.mic.45.make program-usbtiny
and it flashed correctly as you can see below:
avr-objcopy -j .text -O ihex hello.mic.45.out hello.mic.45.c.hex;\
avr-size --mcu=attiny45 --format=avr hello.mic.45.out
AVR Memory Usage
----------------
Device: attiny45
Program: 500 bytes (12.2% Full)
(.text + .data + .bootloader)
Data: 200 bytes (78.1% Full)
(.data + .bss + .noinit)
avrdude -p t45 -P usb -c usbtiny -U flash:w:hello.mic.45.c.hex
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e9206
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file "hello.mic.45.c.hex"
avrdude: input file hello.mic.45.c.hex auto detected as Intel Hex
avrdude: writing flash (500 bytes):
Writing | ################################################## | 100% 0.87s
avrdude: 500 bytes of flash written
avrdude: verifying flash memory against hello.mic.45.c.hex:
avrdude: load data flash data from input file hello.mic.45.c.hex:
avrdude: input file hello.mic.45.c.hex auto detected as Intel Hex
avrdude: input file hello.mic.45.c.hex contains 500 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 1.00s
avrdude: verifying ...
avrdude: 500 bytes of flash verified
avrdude: safemode: Fuses OK
avrdude done. Thank you.
Everything went well. Work done! Here's my final video:
Video of the microphone working


IOT Development
We have extensive experience with Cypress PSoC 4 & 6, Arduino, Raspberry PI, Intel Galileo/Edison,& Beagle Bone. We can develop applications and hardware for your unique application.
Cypress USB and PSoC Development
We have extensive experience with FX2, FX3, PSoC 1 through 6 and are a Cypress Gold Design partner.
Linux Device driver and QT application Development
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WirelessUSB Device Development
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A New Stone Game
问题描述 :
Alice and Bob decide to play a new stone game.At the beginning of the game they pick n(1<=n<=10) piles of stones in a line. Alice and Bob move the stones in turn.
At each step of the game,the player choose a pile,remove at least one stones,then freely move stones from this pile to any other pile that still has stones.
For example:n=4 and the piles have (3,1,4,2) stones.If the player chose the first pile and remove one.Then it can reach the follow states.
2 1 4 2
1 2 4 2（move one stone to Pile 2）
1 1 5 2（move one stone to Pile 3）
1 1 4 3（move one stone to Pile 4）
0 2 5 2（move one stone to Pile 2 and another one to Pile 3）
0 2 4 3（move one stone to Pile 2 and another one to Pile 4）
0 1 5 3（move one stone to Pile 3 and another one to Pile 4）
0 3 4 2（move two stones to Pile 2）
0 1 6 2（move two stones to Pile 3）
0 1 4 4（move two stones to Pile 4）
Alice always moves first. Suppose that both Alice and Bob do their best in the game.
You are to write a program to determine who will finally win the game.
At each step of the game,the player choose a pile,remove at least one stones,then freely move stones from this pile to any other pile that still has stones.
For example:n=4 and the piles have (3,1,4,2) stones.If the player chose the first pile and remove one.Then it can reach the follow states.
2 1 4 2
1 2 4 2（move one stone to Pile 2）
1 1 5 2（move one stone to Pile 3）
1 1 4 3（move one stone to Pile 4）
0 2 5 2（move one stone to Pile 2 and another one to Pile 3）
0 2 4 3（move one stone to Pile 2 and another one to Pile 4）
0 1 5 3（move one stone to Pile 3 and another one to Pile 4）
0 3 4 2（move two stones to Pile 2）
0 1 6 2（move two stones to Pile 3）
0 1 4 4（move two stones to Pile 4）
Alice always moves first. Suppose that both Alice and Bob do their best in the game.
You are to write a program to determine who will finally win the game.
输入:
The input contains several test cases. The first line of each test case contains an integer number n, denoting the number of piles. The following n integers describe the number of stones in each pile at the beginning of the game, you may assume the number of stones in each pile will not exceed 100.
The last test case is followed by one zero.
The last test case is followed by one zero.
输出:
For each test case, if Alice win the game,output 1,otherwise output 0.
样例输入:
3 2 1 3 2 1 1 0
样例输出:
1 0
解题代码:
/* @author: */ import java.util.Scanner; public class Main{ public static void main(String args[]){ Scanner sc=new Scanner(System.in); int a[]=new int[11]; boolean flag=false; while(sc.hasNext()) { flag=true; int n=sc.nextInt(); if(n==0) break; for(int i=1;i<=n;i++) a[i]=sc.nextInt(); if(n%2==1) { System.out.printf("1\n"); continue; }//如果是奇数，则必然是第一个人赢 for(int i=1;i< n&&flag;i++) { for(int j=i+1;j<=n&&flag;j++) if(a[i]!=0&&a[i]==a[j]){ a[i]=0; a[j]=0; break; } if(a[i]!=0) flag=false; }//如果是偶数，则判断是否成双成对 if(!flag) System.out.printf("1\n"); else System.out.printf("0\n"); } } }
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原来欧几里德定理应用这么多
目测会火
说的就是无向图啊，有向图的算法也是类似的
写的很好~~
简洁的代码
We do not harbor that I couldn’t remove other individuals’ problems whenever this arrived at.
不对吧 你算的an是前面说有的项的和
int L[m+1][n+1];这样定义出错，这个在gcc上可以编译通过 在VS上不行 应该改为new 或者vector
很全很强大！
很好。代码比书上的简练！
比较基础，找些自信
Thanks for taking the time to examine this, I really feel strongly about it and love studying a lot more on this topic. If possible, as you acquire experience
网站不错，支持一个
是O(m+n)，不小心打错了


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SD file system class for FAT16, FAT32, and exFAT volumes.
More...
#include <SdFs.h>
|
| bool | begin (BlockDevice *blockDev) |
| |
| bool | begin (uint8_t csPin=SS) |
| |
| bool | begin (uint8_t csPin, SPISettings spiSettings) |
| |
| bool | begin (SdSpiConfig spiConfig) |
| |
| bool | begin (SdioConfig sdioConfig) |
| |
| SdCard * | card () |
| |
| bool | cardBegin (SdSpiConfig spiConfig) |
| |
| bool | cardBegin (SdioConfig sdioConfig) |
| |
| bool | chdir () |
| |
| bool | chdir (const char *path) |
| |
| void | chvol () |
| |
| uint32_t | clusterCount () |
| |
| uint32_t | dataStartSector () const |
| |
| void | end () |
| |
| void | errorHalt (Print *pr) |
| |
| void | errorHalt () |
| |
| void | errorHalt (Print *pr, const char *msg) |
| |
| void | errorHalt (Print *pr, const __FlashStringHelper *msg) |
| |
| void | errorHalt (const __FlashStringHelper *msg) |
| |
| void | errorHalt (const char *msg) |
| |
| bool | exists (const char *path) |
| |
| bool | exists (const String &path) |
| |
| uint32_t | fatStartSector () const |
| |
| uint8_t | fatType () const |
| |
| uint32_t | freeClusterCount () |
| |
| void | initErrorHalt (Print *pr) |
| |
| void | initErrorHalt () |
| |
| void | ls (print_t *pr) |
| |
| void | ls (print_t *pr, uint8_t flags) |
| |
| void | ls (print_t *pr, const char *path, uint8_t flags) |
| |
| void | ls () |
| |
| void | ls (uint8_t flags) |
| |
| void | ls (const char *path, uint8_t flags=0) |
| |
| bool | mkdir (const char *path, bool pFlag=true) |
| |
| bool | mkdir (const String &path, bool pFlag=true) |
| |
| FsFile | open (const char *path, uint8_t oflag=O_READ) |
| |
| FsFile | open (const String &path, uint8_t oflag=O_READ) |
| |
| void | printFatType (Print *pr) |
| |
| void | printSdError (print_t *pr) |
| |
| void | printSdErrorCode (Print *pr) |
| |
| bool | remove (const char *path) |
| |
| bool | remove (const String &path) |
| |
| bool | rename (const char *oldPath, const char *newPath) |
| |
| bool | rmdir (const char *path) |
| |
| bool | rmdir (const String &path) |
| |
| uint8_t | sdErrorCode () |
| |
| uint8_t | sdErrorData () |
| |
| uint32_t | sectorsPerCluster () const |
| |
| bool | volumeBegin () |
| |
SD file system class for FAT16, FAT32, and exFAT volumes.
Initialize an FatVolume object.
- Parameters
-
| [in] | blockDev | Device block driver. |
- Returns
- The value true is returned for success and the value false is returned for failure.
Initialize SD card and file system.
- Parameters
-
| [in] | csPin | SD card chip select pin. |
- Returns
- true for success else false.
| bool SdBase< FsVolume >::begin |
( |
uint8_t |
csPin, |
|
|
SPISettings |
spiSettings |
|
) |
| |
|
inlineinherited |
Initialize SD card and file system.
- Parameters
-
| [in] | csPin | SD card chip select pin. |
| [in] | spiSettings | SPI speed, mode, and bit order. |
- Returns
- true for success else false.
Initialize SD card and file system for SPI mode.
- Parameters
-
| [in] | spiConfig | SPI configuration. |
- Returns
- true for success else false.
Initialize SD card and file system for SDIO mode.
- Parameters
-
| [in] | sdioConfig | SDIO configuration. |
- Returns
- true for success else false.
- Returns
- Pointer to SD card object.
Initialize SD card in SPI mode.
- Parameters
-
| [in] | spiConfig | SPI configuration. |
- Returns
- true for success else false.
Initialize SD card in SDIO mode.
- Parameters
-
| [in] | sdioConfig | SDIO configuration. |
- Returns
- true for success else false.
Set volume working directory to root.
- Returns
- true for success else false.
| bool FsVolume::chdir |
( |
const char * |
path | ) |
|
|
inlineinherited |
Set volume working directory.
- Parameters
-
| [in] | path | Path for volume working directory. |
- Returns
- true for success or false for failure.
Change global working volume to this volume.
| uint32_t FsVolume::clusterCount |
( |
| ) |
|
|
inlineinherited |
- Returns
- The total number of clusters in the volume.
- Returns
- current working volume.
| uint32_t FsVolume::dataStartSector |
( |
| ) |
const |
|
inlineinherited |
- Returns
- The logical sector number for the start of file data.
free dynamic memory and end access to volume
Print error info and halt.
- Parameters
-
Print error info to Serial and halt.
Print error info and halt.
- Parameters
-
| [in] | pr | Print destination. |
| [in] | msg | Message to print. |
| void SdBase< FsVolume >::errorHalt |
( |
Print * |
pr, |
|
|
const __FlashStringHelper * |
msg |
|
) |
| |
|
inlineinherited |
Print msg and halt.
- Parameters
-
| [in] | pr | Print destination. |
| [in] | msg | Message to print. |
Print msg to Serial and halt.
- Parameters
-
Print error info and halt.
- Parameters
-
| bool FsVolume::exists |
( |
const char * |
path | ) |
|
|
inlineinherited |
Test for the existence of a file in a directory
- Parameters
-
| [in] | path | Path of the file to be tested for. |
- Returns
- true if the file exists else false.
| bool FsVolume::exists |
( |
const String & |
path | ) |
|
|
inlineinherited |
Test for the existence of a file in a directory
- Parameters
-
| [in] | path | Path of the file to be tested for. |
- Returns
- true if the file exists else false.
| uint32_t FsVolume::fatStartSector |
( |
| ) |
const |
|
inlineinherited |
- Returns
- The logical sector number for the start of the first FAT.
| uint8_t FsVolume::fatType |
( |
| ) |
const |
|
inlineinherited |
- Returns
- Partition type, FAT_TYPE_EXFAT, FAT_TYPE_FAT32, FAT_TYPE_FAT16, or zero for error.
| uint32_t FsVolume::freeClusterCount |
( |
| ) |
|
|
inlineinherited |
- Returns
- the free cluster count.
Print error info and halt.
- Parameters
-
Print error info and halt.
| void FsVolume::ls |
( |
print_t * |
pr | ) |
|
|
inlineinherited |
List directory contents.
- Parameters
-
| void FsVolume::ls |
( |
print_t * |
pr, |
|
|
uint8_t |
flags |
|
) |
| |
|
inlineinherited |
List directory contents.
- Parameters
-
| [in] | pr | Print object. |
| [in] | flags | The inclusive OR of |
LS_DATE - Print file modification date
LS_SIZE - Print file size.
LS_R - Recursive list of subdirectories.
| void FsVolume::ls |
( |
print_t * |
pr, |
|
|
const char * |
path, |
|
|
uint8_t |
flags |
|
) |
| |
|
inherited |
List the directory contents of a directory.
- Parameters
-
| [in] | pr | Print stream for list. |
| [in] | path | directory to list. |
| [in] | flags | The inclusive OR of |
LS_DATE - Print file modification date
LS_SIZE - Print file size.
LS_R - Recursive list of subdirectories.
| void FsVolume::ls |
( |
uint8_t |
flags | ) |
|
|
inlineinherited |
List directory contents.
- Parameters
-
| [in] | flags | The inclusive OR of |
LS_DATE - Print file modification date
LS_SIZE - Print file size.
LS_R - Recursive list of subdirectories.
| void FsVolume::ls |
( |
const char * |
path, |
|
|
uint8_t |
flags = 0 |
|
) |
| |
|
inlineinherited |
List the directory contents of a directory to Serial.
- Parameters
-
| [in] | path | directory to list. |
| [in] | flags | The inclusive OR of |
LS_DATE - Print file modification date
LS_SIZE - Print file size.
LS_R - Recursive list of subdirectories.
| bool FsVolume::mkdir |
( |
const char * |
path, |
|
|
bool |
pFlag = true |
|
) |
| |
|
inlineinherited |
Make a subdirectory in the volume root directory.
- Parameters
-
| [in] | path | A path with a valid 8.3 DOS name for the subdirectory. |
| [in] | pFlag | Create missing parent directories if true. |
- Returns
- The value true is returned for success and the value false is returned for failure.
| bool FsVolume::mkdir |
( |
const String & |
path, |
|
|
bool |
pFlag = true |
|
) |
| |
|
inlineinherited |
Make a subdirectory in the volume root directory.
- Parameters
-
| [in] | path | A path with a valid 8.3 DOS name for the subdirectory. |
| [in] | pFlag | Create missing parent directories if true. |
- Returns
- The value true is returned for success and the value false is returned for failure.
| FsFile FsVolume::open |
( |
const char * |
path, |
|
|
uint8_t |
oflag = O_READ |
|
) |
| |
|
inherited |
open a file
- Parameters
-
| [in] | path | location of file to be opened. |
| [in] | oflag | open mode flags. |
- Returns
- a File object.
| FsFile FsVolume::open |
( |
const String & |
path, |
|
|
uint8_t |
oflag = O_READ |
|
) |
| |
|
inherited |
open a file
- Parameters
-
| [in] | path | location of file to be opened. |
| [in] | oflag | open mode flags. |
- Returns
- a File object.
Print volume FAT/exFAT type.
- Parameters
-
Print error info and return.
- Parameters
-
Print SD errorCode and errorData.
- Parameters
-
| bool FsVolume::remove |
( |
const char * |
path | ) |
|
|
inlineinherited |
Remove a file from the volume root directory.
- Parameters
-
| [in] | path | A path with a valid 8.3 DOS name for the file. |
- Returns
- The value true is returned for success and the value false is returned for failure.
| bool FsVolume::remove |
( |
const String & |
path | ) |
|
|
inlineinherited |
Remove a file from the volume root directory.
- Parameters
-
| [in] | path | A path with a valid 8.3 DOS name for the file. |
- Returns
- The value true is returned for success and the value false is returned for failure.
| bool FsVolume::rename |
( |
const char * |
oldPath, |
|
|
const char * |
newPath |
|
) |
| |
|
inlineinherited |
Rename a file or subdirectory.
- Parameters
-
| [in] | oldPath | Path name to the file or subdirectory to be renamed. |
| [in] | newPath | New path name of the file or subdirectory. |
The newPath object must not exist before the rename call.
The file to be renamed must not be open. The directory entry may be moved and file system corruption could occur if the file is accessed by a file object that was opened before the rename() call.
- Returns
- The value true is returned for success and the value false is returned for failure.
| bool FsVolume::rmdir |
( |
const char * |
path | ) |
|
|
inlineinherited |
Remove a subdirectory from the volume's root directory.
- Parameters
-
| [in] | path | A path with a valid 8.3 DOS name for the subdirectory. |
The subdirectory file will be removed only if it is empty.
- Returns
- The value true is returned for success and the value false is returned for failure.
| bool FsVolume::rmdir |
( |
const String & |
path | ) |
|
|
inlineinherited |
Remove a subdirectory from the volume's root directory.
- Parameters
-
| [in] | path | A path with a valid 8.3 DOS name for the subdirectory. |
The subdirectory file will be removed only if it is empty.
- Returns
- The value true is returned for success and the value false is returned for failure.
- Returns
- SD card error code.
- Returns
- SD card error data.
| uint32_t FsVolume::sectorsPerCluster |
( |
| ) |
const |
|
inlineinherited |
- Returns
- The volume's cluster size in sectors.
Initialize file system after call to cardBegin.
- Returns
- true for success else false.
The documentation for this class was generated from the following file:
- ArduinoSdFs/libraries/SdFs/src/SdFs.h


Run this executable with the following Environment Variables set...
- ELECTRON_START_URL
- The URL for a webpack dev server (for example) that will serve the content for the app.
- ELECTRON_KIOSK
- Set this environment variable to 1 to show full screen without title.
- ELECTRON_WIDTH
- The width of the window to display (incompatible with ELECTRON_KIOSK).
- ELECTRON_HEIGHT
- The height of the window to display (incompatible with ELECTRON_KIOSK).
- ELECTRON_DEV_TOOLS
- Display the dev tools window.


About
I am a student at the Estonian University of Entrepreneurship Minor. At the moment, my main vector was: Frontend, developing mobile applications on the Android platform and development IT infrastructures
Also work in Adobe Illustrator, Adobe Photoshop and Adobe Animate. Gradually, study backend development: PHP, C#.
My main workplace was at the 5G development company - Ericsson Eesti, as the lead of the test technician department. Also, have experience in IT and technical development department


| Name: mr. venkateshwar rao | Reg No: 5-8smmhc18 |
|---|---|
| Age / Sex:31/m | Contact No:9663555558 |
| Marital Status:single | Date:7/8/18 |
| Occupation: real esate . studied upto engg 3rd year. | Dr. pjfp |
Address: Native of bengaluru |
DIAGNOSIS- |
Cough is still there. < sleep gets wheeze. > hot drinks.
Smoking and drinking. .. smoking since 8th std to smoke. from pu inc.
Only frns star
Rx:
Ant.tart1m/bry1m/nat sulph1m – 4-4-4-4
Tulsi vasaka. Sos
Medo 1m – 1 dose daily for 5 days.


View mode recommended when executing instructions.
In this view you can edit the existing instuctions. After editing press enter. If the text changes to red, the instuction is invalid. If you want to add one more instuction, currently you must switch to edit mode.
At the begining of each line there is a small red circle. ( or ) By clicking on them, you can toggle the breakpoint.
A line with light green background indicates the upcoming instruction. You can easily set the upcoming instruction by double clicking on any line.
In this mode you can easily edit the instuctions. Currently only in this mode can you add new lines.
Here you can see and change the content of the NEON register set.
You can see the current datatype of any register int the Format selector by clicking on it.
Invalid input data highlighted by red. The green values indicates the previously executed instruction's output.
For more information see the Format selector and the Datatype linker.
Here you can see and change the content of the core ARM register set.
Invalid input data highlighted by red. The green values indicates the previously executed instruction's output.
To change the format see Format selector.
Here you can see and change the content of the memory.
You can see the current datatype of any register in the Format selector by clicking on it.
Invalid input data highlighted by red. The green values indicates the previously executed instruction's output.
To change the format see Format selector.
Using this menu you can change the selected registers display and input format.
Here you can set the memory size. The input number must be a non negative even number.
Here you can set the offset of memory. The input number must be a non negative even number.
By clicking on the button, a new window pops up.
The text contained by the text area is a link with the current state of the machine. The link stores the code, the breakpoints and the values of the registers and memory.
The text contains the current values of the machine. You can also load register values here by pasting a properly formatted text, and clicking on the Load button above the text area.
The text contains the current code and the breakpoint. You can also load prevoiusly saved text.


DIJKSTRA(1) DIJKSTRA(1) NAME dijkstra - single-source distance filter SYNOPSIS dijkstra [ -ap? ] [ sourcenode file ] DESCRIPTION dijkstra reads a stream of graphs and for each computes the distance of every node from sourcenode. Edge length is given in the len attribute, and the default is 1. The dist attribute of every node is set to its distance from sourcenode. If the -p flag is used, the prev attribute of each node reachable from sourcenode is set to the name of the previous node on a shortest path. The graph attribute maxdist is set to the maxi‐ mum dist of all nodes in the graph. By default, if the graph is disconnected, the dist attribute of nodes unreachable from sourcenode are left untouched, and maxdist is set to the maximum of any previous value and the largest distance recorded in this run. On the other hand, if the -a flag is used, the dist attribute of an unreachable node is assigned a very large value, and maxdist records the maximum distance found in the component containing sourcenode. Any number of sourcenode file pairs may be given. If the last file is missing, stdin is used. All output is written to stdout. In a typical application, dist and maxdist can drive a downstream calcu‐ lation of color or some other attribute. SEE ALSO gvpr(1), gvcolor(1), libgraph(3) 21 March 2001 DIJKSTRA(1)


Hank Williams
Hank Williams Sings
-
Lost Highway
-
I've Just Told Mama Goodbye
- I Saw the Light
- Six More Miles (To the Graveyard)
- A Mansion on the Hill
- Wealth Won't Save Your Soul
- Wedding Bells
- A House Without Love
Moanin' the Blues
-
Lovesick Blues
-
Moanin' the Blues
- The Blues Come Around
- I'm So Lonesome I Could Cry
- I'm a Long Gone Daddy
- My Sweet Love Ain't Around
- Long Gone Lonesome Blues
- Honky Tonk Blues


Enazarova Aichurok
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Chocolate Pizza
POSTED ON 15 DEC 2013 / DESSERTS
For the fig-swirl: Melt butter over medium heat in a saucepan. Add brown sugar and stir to dissolve. Halve all of the figs and toss in the saucepan with water and lemon juice. Cook over medium heat, stirring frequently, until you have a chunky-jammy mixture. Add saly with one or two stirs, set aside and let cool completely.
Ice cream: In a small pot over medium heat, combine milk, and granulated sugar until sugar is completely dissolved and the milk is just barely lukewarm. Whisk in the egg yolks. Set mixture in the fridge and wait until fig mixture is cooled.
Using an ice cream machine, pour liquids into the frozen basin and process according to manufacturer instructions, i.e., let spin and thicken for 20minutes before adding mascarpone, fix jam mixture, and the nuts. Continue to process for +/- 10 minutes. Pour semi-frozen mixture into a pyrex dish or glass tupperware. Freeze for atleast two hours before serving.
- 1 1/2 cups milk
- 1/2 cup mascarpone
- 1/2 tsp pink salt
- 1lb Black Mission Figs
- 1/2 cup brown sugar
- 2-4 tbsp water
- 1 1/2 cups heavy cream
- 1/3 granulated sugar
- 2 egg yolks
- 1 lemon, juiced
- 2 tbsp butter
- 1 cup honey roasted pecans, roughly chopped
Vanessa Stevenson
Food enthusiast, photography fan. Add a pinch of raw foodism and that's pretty much who I am.


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Outcome has had an interesting history, and it is worth summarising it here to show how a Boost library comes to life. The following recollections are by Niall Douglas, and may be faulty due to his aging memory.
The git repo began life as a “Boost.Spinlock” in June 2014 hived out of Boost.AFIO v1 where it had existed
for some time as an internal library. In October 2014 I added in the original prototype
Boost.Expected reference library as a git submodule, and began developing a non-allocating
future<T>
/promise<T>
as an extension of expected<T, std::exception_ptr>
as a faster,
monadic future-promise was something which AFIO v1 sorely needed.
The original prototype Boost.Expected library was a large and very complex beastie.
I was fortunate to be employed on a contract in late 2014 early 2015 where I saw it deployed at
scale into an existing large C++ codebase. Expected was really great and powerful, but it absolutely
murdered compile times in a large C++ codebase, and made LTO effectively infeasible.
I also found its implementation non-conducive to implementing
future-promise with it, and so I resolved to implement a much more powerful policy driven
monad factory which could stamp out everything from an option<T>
right through to a
future-promise pair, all using the exact same basic_monad<>
and therefore all with a full
monadic programming API, C++ 17 continuations/monadic bind and intelligently convertible into one another.
Moreover, all this needed to have an absolute minimum impact on compile times and runtime
overheads, neither of which were strengths of the original prototype Boost.Expected library.
By August 2015 “Boost.Monad” was delivering on all those requirements and then some, but it lacked
maturity through use in other code. Summer 2015 saw the Boost peer review of AFIO v1 which
was roundly rejected. After considering the ample review feedback, it was realised that
AFIO v2 would be a very different design, one no longer using futures, memory allocation
nor C++ exceptions. As AFIO v2 was started from scratch and using Outcome heavily from the
very beginning (every AFIO v2 API returns a result<T>
), Outcome began to gain bug fixes and
shed features, with the non-allocating future-promise implementation being dropped in May
2016 and a large chunk of metaprogramming being replaced with cleaner variable templates
in June. After CppCon 2016 in September, then began the long process of getting Outcome
ready for Boost peer review in Q1 2017 which involved a repeated sequence of complete rewrites
of the tutorial in response to multiple rounds of feedback from the C++ community, with
at least four complete rewrites currently at the time of writing.
In parallel to all this development on Outcome, Expected went before the LEWG and entered
the C++ standards track. As the WG21 meetings went by, Expected experienced a period
of being stripped back and much of the complexity which had so murdered compile and
link times in 2014-2015 fell away, thus the Expected proposed in P0323R1 ended up landing
so close to Outcome that in January 2017 it was just a few hours work to implement
Expected using the core basic_monad
infrastructure in Outcome. That highly flexible
policy based design which made monadic future-promise possible made it similarly easy
to implement a highly conforming Expected, indeed in early 2017 Outcome’s Expected was much
closer to P0323R1 than any other implementation including the LEWG reference implementation.
And unlike the LEWG reference implementation, Outcome has had eighteen months of that
finely tuned patina you only get when a library is in use by other code bases.
In February 2017 it became realised that the userbase really wanted a high quality expected<T, E>
implementation rather than anything similar but not the same which Outcome had invented.
The only just implemented Expected implementation based on basic_monad
therefore took
primacy. The final rewrite of the documentation before peer review submission was one
which made it look like Outcome was primarily an expected<T, E>
implementation with a
few useful extensions like outcome<T>
and result<T>
. I was sad to so pivot, but it
was obvious that Outcome would see far wider popularity and usage as primarily an Expected
implementation.
Almost three years after its beginning, Outcome v1 finally went before Boost peer review in May 2017 which turned into one of the longest and most detailed peer reviews Boost has done in recent years, with over 800 pieces of review feedback submitted. It was by consensus rejected, with substantial feedback on what to do instead.
During the very lengthy peer review, roughly three groups of opinion emerged as to what
a value|error
transporting class ought to look like:
T
and/or E
transport without any
implementation complexity.T
or E1
... En
where T
is the expected value and E1 ...
are the potential unexpected values. This implemention really ought to be implemented
using C++ 17's std::variant<...>
except with stronger never-empty guarantees.
Peter Dimov was very quickly able to implement an expected<T, E1, ...>
using his
variant2 library, and thus there seemed little
point in replicating his work in an Outcome v2. The lightweight choice seemed to be the
best path forwards, so in June 2017 the bare minimum result<T, E>
and outcome<T, EC, P>
as presented in this library was built, using the same constructor design as std::variant<...>
.
Significant backwards compatibility with v1 Outcome code was retained, as the review
had felt the basic proposed design fine.
A period of maturation then followed by porting a large existing codebase using Outcome v1 to v2, and writing a significant amount of new code using v2 to test it for unanticipated surprises and bugs. Quite a few corner cases were found and fixed. At the end of September 2017, Outcome v2 was deemed to be “mature”, and a script generated “Boost edition” made available.
All that remained before it was ready for a second Boost peer review was the documentation. This took four months to write (same time as to write the library itself!), and in January 2018 Outcome had its second Boost peer review, which it passed!
Outcome passing its review in January had much more consequence than I could have ever expected. Unbeknownst to me, the WG21 leadership had interpreted the success of Outcome, and especially its divergences from WG21 Expected, as a sign that the C++ exception handling mechanism was no longer fit for purpose. It was thus resolved to remedy the standard exception handling mechanism into something much more efficient, thus rendering Outcome obsolete in future C++ standards.
Just before the review, I had mooted a number of semantic and compile time performance
improvements to <system_error>
with the proposal that we mildly break Boost.System with
improvements and see how badly real world code broke in response. This was not widely
accepted. I therefore wrote an improved <system_error2>
which fixed all the problems
listed at P0824 (Summary of SG14 discussion on <system_error>
)
and fixed up Outcome so one could use it without any system error implementation,
or with the STL one or with the proposed improved one.
To be continued after Jacksonville …


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@* * This template takes a single argument, a String containing a * message to display. *@ @import models.Books @(booksList: List[Books], genreList: List[Genre]) @main("Books") {
The .card-columns class creates a masonry-like grid of cards. The layout will automatically adjust as you insert more cards.
Note: The cards are displayed vertically on small screens (less than 576px):
Some text inside the first card
Some text inside the second card
Some text inside the third card
Some text inside the fourth card
Some text inside the fifth card
Some text inside the sixth card


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| Trees | Indices | Help |
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object --+ | Vehicle
Vehicle tools for XML-RPC - these are mostly calls to eicpy.vehicle
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Vehicle.getMakes calls eicpy.vehicle's getMakesFromYear
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Vehicle.getModels calls eicpy.vehicle's getModelsFromYearMake
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Vehicle.getVinInfo calls eicpy.vehicle's getInfoFromVin
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| Trees | Indices | Help |
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| Generated by Epydoc 3.0.1 on Mon Oct 8 11:15:39 2012 | http://epydoc.sourceforge.net |


Class Responder
Inheritance
Namespace: Terminal.Gui
Assembly: Terminal.Gui.dll
Syntax
public class Responder
Constructors
Responder()
Declaration
public Responder ();
Properties
CanFocus
Declaration
public virtual bool CanFocus { get; set; }
Property Value
| Type | Description |
|---|---|
| System.Boolean | To be added. |
HasFocus
Declaration
public virtual bool HasFocus { get; }
Property Value
| Type | Description |
|---|---|
| System.Boolean | To be added. |
Methods
MouseEvent(MouseEvent)
Method invoked when a mouse event is generated
Declaration
public virtual bool MouseEvent (Terminal.Gui.MouseEvent mouseEvent);
Parameters
| Type | Name | Description |
|---|---|---|
| MouseEvent | mouseEvent | Contains the details about the mouse event. |
Returns
| Type | Description |
|---|---|
| System.Boolean |
|
ProcessColdKey(KeyEvent)
This method can be overwritten by views that want to provide accelerator functionality (Alt-key for example), but without interefering with normal ProcessKey behavior.
Declaration
public virtual bool ProcessColdKey (Terminal.Gui.KeyEvent keyEvent);
Parameters
| Type | Name | Description |
|---|---|---|
| KeyEvent | keyEvent | Contains the details about the key that produced the event. |
Returns
| Type | Description |
|---|---|
| System.Boolean | To be added. |
Remarks
After keys are sent to the subviews on the current view, all the view are processed and the key is passed to the views to allow some of them to process the keystroke as a cold-key.
This functionality is used, for example, by default buttons to act on the enter key. Processing this as a hot-key would prevent non-default buttons from consuming the enter keypress when they have the focus.
ProcessHotKey(KeyEvent)
This method can be overwritten by view that want to provide accelerator functionality (Alt-key for example).
Declaration
public virtual bool ProcessHotKey (Terminal.Gui.KeyEvent kb);
Parameters
| Type | Name | Description |
|---|---|---|
| KeyEvent | kb | To be added. |
Returns
| Type | Description |
|---|---|
| System.Boolean | To be added. |
Remarks
Before keys are sent to the subview on the current view, all the views are processed and the key is passed to the widgets to allow some of them to process the keystroke as a hot-key.
For example, if you implement a button that has a hotkey ok "o", you would catch the combination Alt-o here. If the event is caught, you must return true to stop the keystroke from being dispatched to other views.
ProcessKey(KeyEvent)
If the view is focused, gives the view a chance to process the keystroke.
Declaration
public virtual bool ProcessKey (Terminal.Gui.KeyEvent keyEvent);
Parameters
| Type | Name | Description |
|---|---|---|
| KeyEvent | keyEvent | Contains the details about the key that produced the event. |
Returns
| Type | Description |
|---|---|
| System.Boolean | To be added. |
Remarks
Views can override this method if they are interested in processing the given keystroke. If they consume the keystroke, they must return true to stop the keystroke from being processed by other widgets or consumed by the widget engine. If they return false, the keystroke will be passed using the ProcessColdKey method to other views to process.
The View implementation does nothing but return false, so it is not necessary to call base.ProcessKey if you derive directly from View, but you should if you derive other View subclasses.