Return a const reference to the mapped value for key.
Synopsis
Declared in <bdlc_flathashmap.h>
VALUE const&
at(KEY const& key) const;Description
Return a reference providing non‐modifiable access to the mapped value associated with the specified key in this map, if such an entry exists; otherwise throw a std::out_of_range exception. Note that this method is not exception‐neutral.
Return Value
const reference to the mapped value for key
Parameters
Name |
Description |
key |
key whose mapped value is accessed |
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