std::match_results<BidirIt,Alloc>:: empty
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match results
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std::match_results
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match_results::empty
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bool
empty
(
)
const
;
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(since C++11) | |
Checks whether the match was successful.
Contents |
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) |