Return an iterator referring to the first token in the input string.
Synopsis
Declared in <bdlb_tokenizer.h>
iterator
begin() const;
Description
Return an iterator referring to the first token in this object's input string (the past‐the‐end iterator if this object iteration state is initially invalid). This reference remains valid as long as the underlying input has not been modified or destroyed since this object was most recently reset (or created).
Return Value
iterator referring to the first token, or past‐the‐end if invalid
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