std::match_results::empty
std::match_results::empty
bool empty() const; | (since C++11) |
Checks whether the match was successful.
Parameters
(none).
Return value
size() == 0 (false if *this represents the result of a successful match, true otherwise).
Exceptions
(none).
Complexity
Constant.
See also
| returns the number of matches in a fully-established result state (public member function) |
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