NAME¶

std::multimap::upper_bound - std::multimap::upper_bound

Synopsis¶

iterator upper_bound( const Key& key ); (1)
const_iterator upper_bound( const Key& key ) const; (2)
template< class K > (3) (since C++14)
iterator upper_bound( const K& x );
template< class K > (4) (since C++14)
const_iterator upper_bound( const K& x ) const;

1,2) Returns an iterator pointing to the first element that is greater than key.
3,4) Returns an iterator pointing to the first element that compares greater to the
value x. This overload participates in overload resolution only if the qualified-id
Compare::is_transparent is valid and denotes a type. It allows calling this function
without constructing an instance of Key.

Parameters¶

key - key value to compare the elements to
x - alternative value that can be compared to Key

Return value¶

Iterator pointing to the first element that is greater than key. If no such element
is found, past-the-end (see end()) iterator is returned.

Complexity¶

Logarithmic in the size of the container.

Notes¶

Feature-test macro Value Std Feature
Heterogeneous comparison lookup
__cpp_lib_generic_associative_lookup 201304L (C++14) in associative containers, for
overloads (3,4)

Example¶

This section is incomplete
Reason: no example

See also¶

equal_range returns range of elements matching a specific key
(public member function)
lower_bound returns an iterator to the first element not less than the given key
(public member function)

Category:¶

* Todo no example