std::match_results<BidirIt,Alloc>::length
From cppreference.com
< cpp | regex | match results
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difference_type length( size_type n = 0 ) const;
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(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 n th
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.
Parameters
| n | - | integral number specifying which match to examine |
Return value
The length of the specified match or sub-match.
Example
| This section is incomplete Reason: no example |
See also
| returns specified sub-match (public member function) |
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| returns the length of the match (if any) (public member function of std::sub_match<BidirIt>) |