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std::equal_to

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Defined in header <functional>
template< class T >
struct equal_to;

Function object for performing comparisons. Unless specialised, invokes operator== on type T.

Contents

Member types

type definition
result_type bool
first_argument_type T
second_argument_type T

Member functions

operator()
checks if the arguments are equal
(public member function)

std::equal_to::operator()

bool operator()( const T& lhs, const T& rhs ) const;

Checks whether lhs is equal to rhs.

Parameters

lhs, rhs - values to compare

Return value

true if lhs == rhs, false otherwise.

Exceptions

(none)

Possible implementation

bool operator()(const T &lhs, const T &rhs) const 
{
    return lhs == rhs;
}