21 Strings library [strings]

21.4 Class template basic_string [basic.string]

21.4.8 basic_string non-member functions [string.nonmembers]

21.4.8.2 operator== [string::operator==]

template<class charT, class traits, class Allocator> bool operator==(const basic_string<charT,traits,Allocator>& lhs, const basic_string<charT,traits,Allocator>& rhs) noexcept;

1

Returns: lhs.compare(rhs) == 0.

template<class charT, class traits, class Allocator> bool operator==(const charT* lhs, const basic_string<charT,traits,Allocator>& rhs) noexcept;

2

Returns: rhs == lhs.

template<class charT, class traits, class Allocator> bool operator==(const basic_string<charT,traits,Allocator>& lhs, const charT* rhs) noexcept;

3

Requires: rhs points to an array of at least traits::length(rhs) + 1 elements of charT.

4

Returns: lhs.compare(rhs) == 0.