Defined in adapters.hpp.
This type should be a stateless trivially default constructible with a call operator of signature bool operator()(Value const&, Value const&) (possibly noexcept, inline and/or constexpr also) which defines a linear order on the objects of type Value.
| Value | the type of objects to compare. |
The second template parameter exists for SFINAE.
Public Member Functions | |
| bool | operator() (Value const &x, Value const &y) const |
Compare if x is less than y. | |
|
inline |
This call operator compares x and y using std::less with template parameter Value.
| x | const reference to Value to compare with y. |
| y | const reference to Value to compare with x. |
bool.