[#DataStream-begin-0d] = xref:DataStream.adoc[DataStream]::begin :relfileprefix: ../ :mrdocs: `begin` overloads == Synopses Declared in `<streams.h>` Return a const iterator to the first unread element. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:DataStream/const_iterator.adoc[const_iterator] xref:DataStream/begin-0a.adoc[begin]() const; ---- [.small]#xref:DataStream/begin-0a.adoc[_» more..._]# Return an iterator to the first unread element. [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:DataStream/iterator.adoc[iterator] xref:DataStream/begin-05.adoc[begin](); ---- [.small]#xref:DataStream/begin-05.adoc[_» more..._]# == Return Value * A const iterator to the first unread element. * An iterator to the first unread element. [.small]#Created with https://www.mrdocs.com[MrDocs]#