std::char_traits<CharT>::to_int_type
< cpp | string | char traits
static int_type to_int_type( char_type c ); |
(until C++11) | |
static constexpr int_type to_int_type( char_type c ) noexcept; |
(since C++11) | |
Converts a value of char_type
to int_type
.
Parameters
c | - | value to convert |
Return value
A value equivalent to c
.
Complexity
Constant.
Notes
For every valid value of char_type
, there must be a unique value of int_type
distinct from eof(). For example, a common implementation of char_traits<char>::eof()
is return -1, and a corresponding valid implementation of char_traits<char>::to_int_type(c)
is return (unsigned char)c.