C and C++ reference

C++ reference C++98, C++03, C++11, C++14, C++17, C++20
Compiler support Language Basic concepts C++ Keywords Preprocessor Expressions Declaration Initialization Functions Statements Classes Templates Exceptions Headers Named requirements Feature test macros (C++20) Language support library Type support  −   traits (C++11) Program utilities Relational comparators (C++20) numeric_limits  −  type_info initializer_list (C++11) Concepts library (C++20)	Diagnostics library General utilities library Smart pointers and allocators Date and time Function objects  −  hash (C++11) String conversions (C++17) Utility functions pair  −   tuple (C++11) optional (C++17)  −  any (C++17) variant (C++17) Strings library basic_string basic_string_view (C++17) Null-terminated strings:    byte  −   multibyte  −   wide Containers library array (C++11)  −  vector map  −  unordered_map (C++11) priority_queue  −  span (C++20) Other containers:    sequence   −   associative    unordered associative  −   adaptors	Iterators library Algorithms library Numerics library Common math functions Special math functions (C++17) Numeric algorithms Pseudo-random number generation Floating-point environment (C++11) complex  −  valarray Input/output library Stream-based I/O Synchronized output (C++20) I/O manipulators Localizations library Regular expressions library (C++11) basic_regex  −  algorithms Atomic operations library (C++11) atomic  −  atomic_flag Thread support library (C++11) Filesystem library (C++17)
Technical specifications    Standard library extensions  (library fundamentals TS)    Standard library extensions v2  (library fundamentals TS v2) propagate_const — observer_ptr — source_location ostream_joiner — detection idiom — uniform container erasure    Concurrency library extensions  (concurrency TS)    Concepts  (concepts TS)    Ranges  (ranges TS)    Transactional Memory  (TM TS)
External Links  −  Non-ANSI/ISO Libraries  −  Index  −  std Symbol Index
C reference C89, C95, C99, C11, C17
Language Basic concepts C Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers	Type support Program utilities Variadic functions Error handling Dynamic memory management Date and time utilities Strings library Null-terminated strings:    byte  −   multibyte  −   wide Algorithms	Numerics Common mathematical functions Floating-point environment (C99) Pseudo-random number generation Complex number arithmetic (C99) Type-generic math (C99) Input/output support Localization support Atomic operations library (C11) Thread support library (C11)
Technical specifications    Dynamic memory extensions  (dynamic memory TR)    Floating-point extensions, Part 1  (FP Ext 1 TS)    Floating-point extensions, Part 4  (FP Ext 4 TS)
External Links  −  Non-ANSI/ISO Libraries  −  Index  −  Symbol Index

News

11 March 2018: New version of the offline archive 1 December 2017: ISO C++17 published. 9 April 2017: New version of the offline archive. The Debian and Ubuntu packages will be updated to this version.