std::greater
| Defined in header <functional>
|
||
| template< class T > struct greater; |
(until C++14) | |
| template< class T = void > struct greater; |
(since C++14) | |
Function object for performing comparisons. Unless specialized, invokes operator> on type T.
Contents |
[edit] Specializations
A specialization of std::greater for any pointer type yields a strict total order, even if the built-in operator> does not.The strict total order is consistent among specializations of std::less, std::greater, std::less_equal, and std::greater_equal for that pointer type, and is also consistent with the partial order imposed by the corresponding built-in operators (<, >, <= and >=).
|
If the function call operator of the specialization |
(since C++14) |
|
The standard library provides a specialization of
|
(since C++14) |
[edit] Member types
| type | definition |
result_type(deprecated in C++17)
|
bool
|
first_argument_type(deprecated in C++17)
|
T
|
second_argument_type(deprecated in C++17)
|
T
|
[edit] Member functions
| operator() |
checks if the first argument is greater than the second (public member function) |
std::greater::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 greater than 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; } |
[edit] See also
| function object implementing x < y (class template) |