std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>::value_compare
class value_compare; | (since {std}) |
std::flat_multimap::value_compare is a function object that compares objects of type std::flat_multimap::const_reference (a pair of references to the stored key/value) by comparing the first components (i.e. keys) of the passed pairs.
Member objects
| Member name | Definition |
|---|---|
comp (private) | the comparison function object of type std::flat_multimap::key_compare(exposition-only member object*) |
Member functions
| (constructor)
(private) | constructs value_compare object (public member function) |
| operator() | compares two values of type value_type (public member function) |
std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>::value_compare::value_compare
private: value_compare( key_compare c ); | (exposition only*) |
Initializes the underlying instance of the comparator comp to c.
Parameters
| c | - | a comparator to assign |
std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>::value_compare::operator()
bool operator()( const const_reference& lhs, const const_reference& rhs ) const; |
Compares lhs.first and rhs.first by calling the stored comparator comp.
Parameters
| lhs, rhs | - | values to compare |
Return value
comp(lhs.first, rhs.first)
Exceptions
May throw implementation-defined exceptions.
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