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C++ Binary Operations Cheatsheet

Values

Base 10	Base 2
0	0b
1	1b
2	10b
3	11b

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C++ Iterators Cheatsheet

Iterator categories

• Input Iterator (immutable): once, forward, read-only
• Output Iterator (mutable): once, foward, write-only
• Forward Iterator (mutable): forward, read/write
• Bidirectionnal Iterator (mutable): forward/backwards, read/write
• Random Access Iterator (mutable): jump around, read/write
• Contiguous Iterator:

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C++ Constructors Cheatsheet

Legend:

• 3️⃣ Rule of 3: if a class implements any of these 3 methods, it should implement all 3 of them. The goal is to ensure the correct management of the class member data.
• 5️⃣ Rule of 5: extension of Rule of 3. Allows for optimized usage (no copies) of the class.

0️⃣ Rule of 0: These constructors and operators are not require when you don't declare any of them and make usage of existing types that support the appropriate copy/move semantics.

It's the rule of "All or Nothing".

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Print sizes in pixels

Portrait

Sizes are displayed as: Width * Height, both in pixels, unless specified otherwise.

Format	150dpi	300dpi	600dpi	1200dpi
A5 (148 * 210 mm)	877 * 1240	1754 * 2480	3508 * 4960	7016 * 9920
A4 (210 * 297 mm)	1240 * 1754	2480 * 3508	4960 * 7016	9920 * 14032

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Bitwarden CLI Cheatsheet

Copy password to clipboard

bw get password github | Set-Clipboard

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# Find mt.exe and creates executable target 'Win10::Mt'.
function(find_mt)
  set(MT_TARGET_NAME Win10::Mt)

  if(NOT TARGET ${MT_TARGET_NAME})
    find_program(MT_TARGET_EXE
      NAME "mt.exe"
      PATHS "C:/Program Files (x86)/Windows Kits/10/bin/${CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION}/${CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE}"
      NO_DEFAULT_PATH

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MacOS Terminal Utilities

Get OS version

sw_vers

Output:

ProductName: Mac OS X

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pip install fonttools brotli zopfli

pyftsubset "your-font.otf" --output-file="your-font-subset.woff2" --flavor=woff2 --layout-features="kern,liga,clig,calt,ccmp,locl,mark,mkmk,onum,pnum,smcp,c2sc,frac,lnum,tnum,subs,sups,  cswh,dlig,ss01,ss03,zero" --unicodes="U+0000-00A0,U+00A2-00A9,U+00AC-00AE,U+00B0-00B7,U+00B9-00BA,U+00BC-00BE,U+00D7,U+00F7,U+2000-206F,U+2074,U+20AC,U+2122,U+2190-21BB,U+2212,U+2215,U+F8FF,U+FEFF,U+FFFD"

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#include "ButtonShadowBehavior.hpp"

#include <QAbstractButton>
#include <QtWidgets/QGraphicsDropShadowEffect>
#include <QState>
#include <QStateMachine>
#include <QSignalTransition>
#include <QParallelAnimationGroup>
#include <QVariantAnimation>

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Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\*\shell\Edit with Sublime Text]
@="Edit with &Sublime Text"
"Icon"="C:\\Program Files\\Sublime Text\\sublime_text.exe,0"
"MuiVerb"="Edit with Sublime Text"

[HKEY_CLASSES_ROOT\*\shell\Edit with Sublime Text\command]
@="C:\\Program Files\\Sublime Text\\sublime_text.exe \"%1\""