[#BloombergLP-bdlc-FlatHashSet-insert-03] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet]::insert :relfileprefix: ../../../ :mrdocs: Insert into this set the value of each element in the input iterator range specified by `first` through `last` (including `first`, excluding `last`). The behavior is undefined unless `first` and `last` refer to a sequence of valid values where `first` is at a position at or before `last`. Note that if a member of the input sequence is equivalent to an earlier member, the later member will not be inserted. == Synopsis Declared in `<bdlc_flathashset.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template<class INPUT_ITERATOR> void insert( INPUT_ITERATOR first, INPUT_ITERATOR last); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#