nlohmann::ordered_map::operator[]

Synopses

Declared in <nlohmann/ordered_map.hpp>

accesses the element with the given key, inserting a default-constructed value if it does not exist

T&
operator[](key_type const& key);

accesses the element with the given key

T const&
operator[](key_type const& key) const;

accesses the element with the given key, inserting a default-constructed value if it does not exist

template<class KeyType>
requires detail::is_usable_as_key_type<key_compare, key_type, KeyType>::value
T&
operator[](KeyType&& key);

accesses the element with the given key

template<class KeyType>
requires detail::is_usable_as_key_type<key_compare, key_type, KeyType>::value
T const&
operator[](KeyType&& key) const;

Name	Thrown on
`std::out_of_range`	if the container does not have an element with the given key

Name	Description
key [in]	key of the element to access