Return the number of elements with the specified key.
Synopsis
Declared in <bdlc_flathashmap.h>
std::size_t
count(KEY const& key) const;Description
Return the number of elements in this map having the specified key. Note that since a flat hash map maintains unique keys, the returned value will be either 0 or 1.
Return Value
1 if key is present, and 0 otherwise
Parameters
Name |
Description |
key |
key to count |
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