std::match_results<BidirIt,Alloc>::length
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(until C++20)
difference_type length( size_type n = 0 ) const;
(since C++11)
Returns the length of the specified sub-match.
If n == 0, the length of the entire matched expression is returned.
If n > 0 && n < size(), the length of nth sub-match is returned.
if n >= size(), a length of the unmatched match is returned.
The call is equivalent to (*this)[n].length().
ready() must be true. Otherwise, the behavior is undefined.
Contents
[edit] Parameters
n
-
integral number specifying which match to examine
[edit] Return value
The length of the specified match or sub-match.
[edit] Example
This section is incomplete
Reason: no example
Reason: no example