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    Cheat Sheets & Infographics Cheat Sheets & Infographics Cheat Sheets

    Standard Algorithms

    Quick Overview

    standard library algorithms overview sheet with visual examples for many algorithms [standard library algorithms overview sheet with visual examples for many algorithms]

    Algorithms Gallery…

    Non-Modifying Operations

    C++ standard library visual overview of existence query algorithms [C++ standard library visual overview of existence query algorithms] C++ standard library visual overview of algorithms for finding single elements in sequences [C++ standard library visual overview of algorithms for finding single elements in sequences] C++ 20/23 standard library visual overview of algorithms for finding single elements in sequences [C++ 20/23 standard library visual overview of algorithms for finding single elements in sequences] C++ standard library visual overview of algorithms for finding runs of equivalent elements in sequences [C++ standard library visual overview of algorithms for finding runs of equivalent elements in sequences] C++ standard library visual overview of algorithms for finding subranges in sequences [C++ standard library visual overview of algorithms for finding subranges in sequences] C++ standard library visual overview of algorithms for comparing ranges [C++ standard library visual overview of algorithms for comparing ranges] C++ standard library visual overview of algorithms for finding smallest and largest elements in sequences [C++ standard library visual overview of algorithms for finding smallest and largest elements in sequences] C++ standard library visual overview of algorithms for binary searches in sorted sequences [C++ standard library visual overview of algorithms for binary searches in sorted sequences] C++20 standard library visual overview of algorithms for binary searches in sorted sequences [C++20 standard library visual overview of algorithms for binary searches in sorted sequences] C++ standard library visual overview of sequence structure query algorithms [C++ standard library visual overview of sequence structure query algorithms] C++ standard library visual overview of sequence structure query algorithms [C++ standard library visual overview of sequence structure query algorithms] C++ standard library visual overview of range traversal algorithms [C++ standard library visual overview of range traversal algorithms]

    Copying / Sampling / Moving

    C++ standard library visual overview of range copy algorithms [C++ standard library visual overview of range copy algorithms] C++ standard library visual overview of range copy algorithms [C++ standard library visual overview of range copy algorithms] C++ standard library visual overview of algorithms that move ranges of elements [C++ standard library visual overview of algorithms that move ranges of elements]

    Reordering Elements

    C++ standard library visual overview of algorithms that shift sequences [C++ standard library visual overview of algorithms that shift sequences] C++20 standard library visual overview algorithms that shift sequences [C++20 standard library visual overview algorithms that shift sequences] C++ standard library visual overview of sorting algorithms [C++ standard library visual overview of sorting algorithms] C++ standard library visual overview of sorting algorithms [C++ standard library visual overview of sorting algorithms] C++ standard library visual overview of sequence partitioning algorithms [C++ standard library visual overview of sequence partitioning algorithms] C++20 standard library visual overview of sequence partitioning algorithms [C++20 standard library visual overview of sequence partitioning algorithms] C++ standard library visual overview of sequence permutation algorithms [C++ standard library visual overview of sequence permutation algorithms] C++ standard library visual overview of algorithms for array-based heap operations [C++ standard library visual overview of algorithms for array-based heap operations] C++20 standard library visual overview of algorithms for array-based heap operations [C++20 standard library visual overview of algorithms for array-based heap operations]

    Modifying Elements

    C++ standard library visual overview of algorithms for modifying range elements [C++ standard library visual overview of algorithms for modifying range elements] C++20 standard library visual overview of algorithms for modifying range elements [C++20 standard library visual overview of algorithms for modifying range elements] C++ standard library visual overview of algorithms for replacing range elements [C++ standard library visual overview of algorithms for replacing range elements] C++ standard library visual overview of algorithms for removing range elements [C++ standard library visual overview of algorithms for removing range elements] C++20 standard library visual overview of algorithms for removing range elements [C++20 standard library visual overview of algorithms for removing range elements] C++ standard library visual overview of operations on sorted sequences [C++ standard library visual overview of operations on sorted sequences] C++20 standard library visual overview of operations on sorted sequences [C++20 standard library visual overview of operations on sorted sequences]

    Numeric Operations

    C++ standard library visual overview of numeric reduction algorithms [C++ standard library visual overview of numeric reduction algorithms] C++ standard library visual overview of numeric scan algorithms [C++ standard library visual overview of numeric scan algorithms]

    Standard Views

    std::span C++20

    std::span contiguous sequence view interface and usage cheat sheet [std::span contiguous sequence view interface and usage cheat sheet]

    std::string_view C++17

    std::string_view interface and usage cheat sheet [std::string_view interface and usage cheat sheet]

    Composable Range Views Ranges C++20/23

    standard library range views overview sheet with visual examples [standard library range views overview sheet with visual examples]

    Standard Containers

    std:: Sequence Containers

    standard library sequence containers overview [standard library sequence containers overview]

    std::vector<ValueType>

    std::vector interface visual overview [std::vector interface visual overview]

    std::deque<ValueType>

    std::deque interface visual overview [std::deque interface visual overview]

    std::list<ValueType>

    std::list interface visual overview [std::list interface visual overview]

    std::forward_list<ValueType> std::forward_list<T>

    std::forward_list interface visual overview [std::forward_list interface visual overview]

    std::string Interface & Utilities Overview

    std::string interface overview cheat sheet [std::string interface overview cheat sheet]

    std:: Associative Containers

    standard library associative containers overview [standard library associative containers overview]

    std::set<KeyType,Compare>

    std::set / std::multiset interface visual overview [std::set / std::multiset interface visual overview]

    std::map<KeyType,MappedType,KeyCompare>

    std::map / std::multimap interface visual overview [std::map / std::multimap interface visual overview]

    std::unordered_set<KeyType,Hash,KeyEqual>

    std::unordered_set / std::unordered_multiset interface visual overview [std::unordered_set / std::unordered_multiset interface visual overview]

    std::unordered_map<KeyType,MappedType,Hash,KeyEqual>

    std::unordered_map / std::unordered_multimap interface visual overview [std::unordered_map / std::unordered_multimap interface visual overview]

    std:: Special Containers

    standard library special containers overview [standard library special containers overview]

    Iterators

    example: iterators in C++ [example: iterators in C++]

    Iterator Range

    iterator range convention: pair of iterators [iterator range convention: pair of iterators]

    end-of-range iterator q points one behind the last element in the range

    Iterator Range Examples

    examples of various iterator ranges [examples of various iterator ranges]

    Which Sequence Container Should I Use?

    flowchart for selecting an appropriate standard library container [flowchart for selecting an appropriate standard library container]

    vector Growth Scheme

    example of growing a std::vector works internally [example of growing a std::vector works internally]

    vector Memory Layout (typical)

    Example: vector object w on the stack

    vector<int> w {0,1,2,3,4};
w.reserve(8);
    simplified std::vector memory layout [simplified std::vector memory layout]

    Standard Randomness

    Standard Random Distributions C++11

    an overview of standard library random distribution types [an overview of standard library random distribution types]

    Standard Random Sampling Distributions C++11

    an overview of standard library random distribution types [an overview of standard library random distribution types]

    Standard Utilities

    std::numeric_limits<T>

    std::numeric_limits values and binary number representations for signed integers, unsigned integers and floating point numbers [std::numeric_limits values and binary number representations for signed integers, unsigned integers and floating point numbers]

    Language Rules & Mechanisms

    Build Model / Compiling A Project

    separate compilation example [separate compilation example]

    The "Usual Arithmetic Conversions"

    Summary of the arithmetic type conversion rules incl. integer promotion and conversion rules. [Summary of the arithmetic type conversion rules incl. integer promotion and conversion rules.]

    Lambda Expressions

    lambda expressions syntax &amp; semantics overview [lambda expressions syntax &amp; semantics overview]

    Lambda Expression Syntax

    allowed lambda expression syntax in different C++ standards [allowed lambda expression syntax in different C++ standards]

    Variables in C++

    variable = named object = set of bits interpreted according to a type [variable = named object = set of bits interpreted according to a type]

    Reference Binding Rules

    reference binding rules [reference binding rules]

    Reference Collapsing  C++11

    for template arguments

    reference collapsing rules [reference collapsing rules]

    Perfect Forwarding C++11
    of template arguments     Forwarding

    example of the perfect forwarding idiom [example of the perfect forwarding idiom]

    Non-Standard Libraries

    {fmt} v8.0 – Printing & Formatting

    example-based overview of formatting and printing with the {fmt} library [example-based overview of formatting and printing with the {fmt} library]

    {fmt} v8.0 – Time & Date Formatting

    time/date formatting string tokens as used by the {fmt} library, std::format and std::strftime [time/date formatting string tokens as used by the {fmt} library, std::format and std::strftime]

    std::format and std::strftime use the same formatting tokens

    Design Guidelines

    Function Parameters & Return Values Fn Interfaces C++17

    cheat sheet about what function parameter types and return types to use [cheat sheet about what function parameter types and return types to use]
    • prefer specific types over general-purpose types
    • don't use getter/setter pairs for classes
    • use descriptive action names (verbs) for mutating member functions
    • avoid direct mutable access to class member variables from the outside

    String(-Like) Function Parameters

    cheat sheet about what type to use for string-like functions parameters [cheat sheet about what type to use for string-like functions parameters]

    Don't Throw Exceptions in Destructors!

    Parent (of type A) gets destroyed and the destructor of one child (type B) throws an exception ⇒ resources may leak!

    example showing why throwing destructors are bad [example showing why throwing destructors are bad]

    Engineering

    Binary Representations of Numeric Values

    binary representations of numeric values: unsigned integers, signed integers and IEEE 754 floating point numbers [binary representations of numeric values: unsigned integers, signed integers and IEEE 754 floating point numbers]

    Terminology

    Function Contracts

    overview of function contract terminology: preconditions, postconditions, invariants, side effects [overview of function contract terminology: preconditions, postconditions, invariants, side effects]

    Related …

    Last updated: 2023-02-19

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