std::char_traits<CharT>::to_char_type

 

C++

Language

Standard Library Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

basic_string_view (C++17)

char_traits

 

std::char_traits

Member functions

char_traits::assign

char_traits::eqchar_traits::lt

char_traits::move

char_traits::copy

char_traits::compare

char_traits::length

char_traits::find

char_traits::to_char_type

char_traits::to_int_type

char_traits::eq_int_type

char_traits::eof

char_traits::not_eof

 

static char_type to_char_type( int_type c );		(until C++11)
static constexpr char_type to_char_type( int_type c ) noexcept;		(since C++11)

Converts a value of int_type to char_type. If there are no equivalent value (such as when c is a copy of the eof value), the results are unspecified.

Formally, returns the value x such that X::eq_int_type(c, X::to_int_type(x)) is true, and an unspecified value if no such x exists.

Parameters

c

-

value to convert

Return value

A value equivalent to c.

Complexity

Constant.