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std::sub_match::length

difference_type length() const;

Parameters

(none).

Return value

Returns the number of characters in the match, i.e. std::distance(first, second) if the match is valid, 0 otherwise.

Complexity

Constant.

Links:

http://en.cppreference.com/w/cpp/regex/sub_match/length

doc_CPP

2016-10-11 10:07:07

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