std::ranges::greater
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ranges::greater
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Defined in header
<functional>
struct greater;
(since C++20)
Function object for performing comparisons. Deduces the parameter types of the function call operator from the arguments (but not the return type).
Contents
[edit] Nested types
Nested type
Definition
is_transparent
unspecified
[edit] Member functions
operator()
(public member function)
std::ranges::greater::operator()
template< class T, class U >
constexpr bool operator()( T&& t, U&& u ) const;
constexpr bool operator()( T&& t, U&& u ) const;
Equivalent to return ranges::less {}(std::forward <U>(u), std::forward <T>(t));.
This overload participates in overload resolution only if std::totally_ordered_with <T, U> is satisfied.
[edit] Notes
Unlike std::greater , std::ranges::greater requires all six comparison operators <, <=, >, >=, == and != to be valid (via the totally_ordered_with constraint) and is entirely defined in terms of
std::ranges::less.
[edit] Example
This section is incomplete
Reason: no example
Reason: no example
[edit] Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 3530 | C++20 | syntactic checks were relaxed while comparing pointers | only semantic requirements are relaxed |