Strings library

From Cppreference

C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Strings library
Narrow character strings Wide character strings Classes basic_string char_traits Functions getline stoi stol stoll (C++11) (C++11) (C++11) stoul stoull (C++11) (C++11) stof stod stold (C++11) (C++11) (C++11) to_string (C++11) to_wstring (C++11)

Contents 1 Null terminated narrow string management 2 Null-terminated wide string management 3 basic_string 4 Functions 4.1 Numeric conversions 5 Hash support 6 char_traits

[edit] Null terminated narrow string management

[edit] Null-terminated wide string management

[edit] basic_string

Defined in header <string>
template<     typename CharT,     typename Traits = std::char_traits<CharT>,     typename Allocator = std::allocator<CharT> > > class basic_string;

The class basic_string generalizes the way how sequences of characters are manipulated and stored.

Several specializations of the class basic_string are provided:

Defined in header <string>
Type	Definition
string	basic_string<char>
wstring	basic_string<wchar_t>
u16string	basic_string<char16_t>
u32string	basic_string<char32_t>

Functions
getline	read data from an I/O stream into a string (function)
Numeric conversions
stoi stol stoll (C++11) (C++11) (C++11)	converts a string to an signed integer (function)
stoul stoull (C++11) (C++11)	converts a string to an unsigned integer (function)
stof stod stold (C++11) (C++11) (C++11)	converts a string to an floating point value (function)
to_string (C++11)	converts an integral or floating point value to string (function)
to_wstring (C++11)	converts an integral or floating point value to wstring (function)

[edit] Hash support

The following specializations of class template hash are defined. These specializations provide hash support for default string types.

Defined in header <string>
template<> class hash<string>;		(C++11 feature)
template<> class hash<wstring>;		(C++11 feature)
template<> class hash<u16string>;		(C++11 feature)
template<> class hash<u32string>;		(C++11 feature)

[edit] char_traits

Strings library provides class template char_traits, defining types and functions for a character container. The following specializations are defined:

Defined in header <string>
template<> class char_traits<string>;
template<> class char_traits<wstring>;
template<> class char_traits<u16string>;		(C++11 feature)
template<> class char_traits<u32string>;		(C++11 feature)