C++ Standard Library header files

The interface of C++ standard library is defined by a set of files. These are as following:

General

<cstdlib>	General purpose utilities including C dynamic memory, random numbers, search, sort and environmental functions
<csignal>	Functions and macro constants for signal management
<csetjmp>	Macro (and function) that saves (and jumps) to an execution context
<cstdarg>	Handling of variable length argument lists
<typeinfo>	Runtime type information utilities

Numeric Limits

<climits>	limits of integral types
<cfloat>	limits of float types
<cstdint>	limits of other types
<limits>	standardized way to query properties of fundamental types

Memory

<new>	Low-level memory management utilities
<memory>	Higher level memory management utilities

Utilities

<bitset>	Template:cpp/ltt class template
<functional>	Function objects, designed for use with the standard algorithms
<utility>	Various utility components
<ctime>	C-style time/date utilites

Character Data

<cstddef>	typedefs for types such as size_t, NULL and others
<cwchar>	defines wide char types
<cctype>	functions to determine the type contained in character data
<cwctype>	functions for determining the type of wide character data

String Data

<cstring>	various narrow character string handling functions
<cwstring>	various wide character string handling functions
<string>	Template:cpp/ltt class template

Regular Expressions library

<regex>

Classes, algorithms and iterators to support regular expression processing

Containers library

<array>	Template:cpp/ltt container (since C++11)
<vector>	Template:cpp/ltt container
<deque>	Template:cpp/ltt container
<list>	Template:cpp/ltt container
<forward_list>	Template:cpp/ltt container (since C++11)
<set>	Template:cpp/ltt and Template:cpp/ltt associative containers
<map>	Template:cpp/ltt and Template:cpp/ltt associative containers
<unordered_set>	Template:cpp/ltt and Template:cpp/ltt unordered associative containers (since C++11)
<unordered_map>	Template:cpp/ltt and Template:cpp/ltt unordered associative containers (since C++11)
<stack>	Template:cpp/ltt container adaptor
<queue>	Template:cpp/ltt and Template:cpp/ltt container adaptors

Algorithms library

<algorithm>

Algorithms that operate on containers

Iterators library

<iterator>

Container iterators

Localization library

<locale>	Localization utilities
<clocale>	C localization utilities

Numerics library

<cmath>	Common mathematics functions
<complex>	Complex number type
<valarray>	Class for representing and manipulating arrays of values
<random>	Random number generators and distributions
<numeric>	Numeric operations on values in containers

Thread support library

<thread>

Thread support library

Atomic Operations library

<atomic>

Atomic Operations library

Input/output library

<iosfwd>	forward declarations of all objects in the input/output library
<ios>	Template:cpp/ltt class, Template:cpp/ltt class template and several typedefs
<istream>	Template:cpp/ltt class template and several typedefs
<ostream>	Template:cpp/ltt class template and several typedefs
<iostream>	Template:cpp/ltt class template and several typedefs
<fstream>	Template:cpp/ltt, Template:cpp/ltt, Template:cpp/ltt class templates and several typedefs
<sstream>	Template:cpp/ltt, Template:cpp/ltt, Template:cpp/ltt class templates and several typedefs
<iomanip>	Helper functions to control the format or input and output
<cstdio>	C-style input-output functions

Errors and Diagnostics

<exception>	Exception handling utilities
<stdexcept>	Standard exception objects
<cassert>	Conditionally compiled macro that compares its argument to zero
<system_error>	defines std::error_code, a platform-dependent error code
<cerrno>	Macro containing the last error number