std::not_equal_to
From cppreference.com
< cpp | utility | functional
| Defined in header
<functional>
|
||
| template< class T >
struct not_equal_to; |
(until C++14) | |
| template< class T = void >
struct not_equal_to; |
(since C++14) | |
Function object for performing comparisons. Unless specialised, invokes operator!= on type T.
Contents |
[edit] Specializations
|
The standard library provides a specialization of
|
(since C++14) |
[edit] Member types
| type | definition |
result_type
|
bool
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first_argument_type
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T
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second_argument_type
|
T
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[edit] Member functions
| operator() |
checks if the arguments are not equal (public member function) |
std::not_equal_to::operator()
| bool operator()( const T& lhs, const T& rhs ) const;
|
(until C++14) | |
| constexpr bool operator()( const T& lhs, const T& rhs ) const;
|
(since C++14) | |
Checks whether lhs is not equal to rhs.
Parameters
| lhs, rhs | - | values to compare |
Return value
true if lhs != rhs, false otherwise.
Exceptions
(none)
Possible implementation
constexpr bool operator()(const T &lhs, const T &rhs) const { return lhs != rhs; } |