Subscript operators
Synopses
Declared in <bslstl_unorderedmap.h>
Return a reference providing modifiable access to the mapped‐value associated with the specified key in this unordered map; if this unordered map does not already contain a value_type object with key, first insert a new value_type object having key and a default‐constructed VALUE object. Note that this method requires that the (template parameter) VALUE is "default‐constructible" (see {Requirements on value_type}). Note that key may be modified; it is guaranteed to be left in a valid state.
add_lvalue_reference<VALUE>::type
operator[](BloombergLP::bslmf::MovableRef<key_type> key);Return a reference providing modifiable access to the mapped‐value associated with the specified key in this unordered map; if this unordered map does not already contain a value_type object with key, first insert a new value_type object having key and a default‐constructed VALUE object. Note that this method requires that the (template parameter) type KEY is copy‐constructible and the (template parameter) VALUE is "default‐constructible" (see {Requirements on value_type}).
add_lvalue_reference<VALUE>::type
operator[](key_type const& key);Return a reference providing modifiable access to the mapped‐value associated with a key that is equivalent with the specified key; if this map does not already contain a value_type object having an equivalent key, first insert a new value_type object having the move‐inserted key and a default‐constructed VALUE object, and return a reference to the newly mapped (default) value. This method requires that the (template parameter) type KEY be move‐insertable into this map and the (template parameter) type VALUE be default‐insertable into this map (see {Requirements on KEY and VALUE}).
template<class LOOKUP_KEY>
add_lvalue_reference<VALUE>::type
operator[](LOOKUP_KEY&& key)
requires BloombergLP::bslmf::IsTransparentPredicate<HASH, LOOKUP_KEY>::value
&& BloombergLP::bslmf::IsTransparentPredicate<EQUAL,LOOKUP_KEY>::value;Created with MrDocs