std::char_traits<CharT>::to_char_type (3) - Linux Manuals

std::char_traits<CharT>::to_char_type: std::char_traits<CharT>::to_char_type

NAME

std::char_traits<CharT>::to_char_type - std::char_traits<CharT>::to_char_type

Synopsis

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.