std::less_equal
From cppreference.com
< cpp | utility | functional
| Defined in header
<functional>
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||
| template< class T >
struct less_equal; |
(until C++14) | |
| template< class T = void >
struct less_equal; |
(since C++14) | |
Function object for performing comparisons. Unless specialized, invokes operator<= on type T.
Contents |
[edit] Specializations
If the built-in operator<= does not provide total order for pointers, a partial specialization of std::less_equal for pointer types is provided, which guarantees total order.
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The standard library provides a specialization of
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(since C++14) |
[edit] Member types
| type | definition |
result_type
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bool
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first_argument_type
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T
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second_argument_type
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T
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[edit] Member functions
| operator() |
checks if the first argument is less than or equal to the second (public member function) |
std::less_equal::operator()
| bool operator()( const T& lhs, const T& rhs ) const;
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(until C++14) | |
| constexpr bool operator()( const T& lhs, const T& rhs ) const;
|
(since C++14) | |
Checks if lhs is less than or 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; } |