std::match_results<BidirIt,Alloc>::empty

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< cpp‎ | regex‎ | match results
Regular expressions library
Classes
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Regex Grammar
bool empty() const;
(since C++11)

Checks whether the match was successful.

Parameters

(none)

Return value

true if *this represents the result of a failed match, false otherwise, i.e. size() == 0

Exceptions

May throw implementation-defined exceptions.

Complexity

Constant.

See also

returns the number of matches in a fully-established result state
(public member function)