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C++ reference - cppreference.com

Language

Preprocessor âˆ’ Comments
ASCII chart
Basic concepts
    Keywords
    Names (lookup)
    Types (fundamental types)
    The main function
    Modules (C++20)
    Contracts (C++26)
Expressions
    Value categories
    Evaluation order
    Operators (precedence)
    Conversions âˆ’ Literals
    Constant expressions
Statements
    if âˆ’ switch
    for âˆ’ range-for (C++11)
    while âˆ’ do-while
Declarations âˆ’ Initialization
Functions âˆ’ Overloading
Coroutines (C++20)
Classes (unions)
Templates âˆ’ Exceptions
Freestanding implementations

Standard library (headers)

Named requirements

Language support library

Program utilities
    Signals âˆ’ Non-local jumps
Basic memory management
Variadic functions
source_location (C++20)
Comparison utilities (C++20)
Type support âˆ’ type_info
numeric_limits âˆ’ exception
initializer_list (C++11)
Coroutine support (C++20)
Contract support (C++26)

Concepts library (C++20)

Diagnostics library

Assertions âˆ’ System error (C++11)
Exception types âˆ’ Error numbers
basic_stacktrace (C++23)
Debugging support (C++26)

Memory management library

Allocators âˆ’ Smart pointers
Memory resources (C++17)

Metaprogramming library (C++11)

Type traits âˆ’ ratio
integer_sequence (C++14)

General utilities library

Function objects âˆ’ hash (C++11)
Swap âˆ’ Type operations (C++11)
Integer comparison (C++20)
pair âˆ’ tuple (C++11)
optional (C++17)
expected (C++23)
variant (C++17) âˆ’ any (C++17)
bitset âˆ’ Bit manipulation (C++20)

Containers library

vector âˆ’ deque âˆ’ array (C++11)
list âˆ’ forward_list (C++11)
inplace_vector (C++26)
hive (C++26)
map âˆ’ multimap âˆ’ set âˆ’ multiset
unordered_map (C++11)
unordered_multimap (C++11)
unordered_set (C++11)
unordered_multiset (C++11)
Container adaptors
span (C++20) âˆ’ mdspan (C++23)

Iterators library

Ranges library (C++20)

Range factories âˆ’ Range adaptors
generator (C++23)

Algorithms library

Numeric algorithms
Execution policies (C++17)
Constrained algorithms (C++20)

Strings library

basic_string âˆ’ char_traits
basic_string_view (C++17)

Text processing library

Primitive numeric conversions (C++17)
Formatting (C++20) âˆ’ Localization
text_encoding (C++26)
Regular expressions (C++11)
    basic_regex âˆ’ Algorithms
    Default regular expression grammar
Null-terminated sequence utilities:
    byte âˆ’ multibyte âˆ’ wide

Numerics library

Common math functions
Mathematical special functions (C++17)
Mathematical constants (C++20)
Basic linear algebra algorithms (C++26)
Data-parallel types (SIMD) (C++26)
Pseudo-random number generation
Floating-point environment (C++11)
complex âˆ’ valarray

Date and time library

Calendar (C++20) âˆ’ Time zone (C++20)

Input/output library

Print functions (C++23)
Stream-based I/O âˆ’ I/O manipulators
basic_istream âˆ’ basic_ostream
Synchronized output (C++20)
File systems (C++17)

Concurrency support library (C++11)

thread âˆ’ jthread (C++20)
atomic âˆ’ atomic_flag
atomic_ref (C++20) âˆ’ memory_order
Mutual exclusion âˆ’ Condition variables
Futures âˆ’ Semaphores (C++20)
latch (C++20) âˆ’ barrier (C++20)
Safe Reclamation (C++26)

Execution support library (C++26)

Feature test macros (C++20)

Language âˆ’ Standard library âˆ’ Headers

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