std::char_traits<CharT>::eq_int_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 bool eq_int_type( int_type c1, int_type c2 );		(until C++11)
static constexpr bool eq_int_type( int_type c1, int_type c2 ) noexcept;		(since C++11)

Checks whether two values of type int_type are equal.

Formally,

• if there exist values a and b such that c1 == X::to_int_type(a) and c2 == X::to_int_type(b), yields the same as X::eq(a,b)
• otherwise, if c1 and c2 are both copies of X::eof(), yields true
• otherwise, if one of c1 and c2 is a copy of X::eof() and the other is not, yields false
• otherwise, the result is unspecified

Parameters

c1, c2

-

values to compare

Return value

true if c1 is equal to c2 under the rules described above, false otherwise.

Complexity

Constant.