Namespaces
Variants
Views
Actions

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

From cppreference.com
< cpp‎ | regex‎ | match results
 
 
Regular expressions library
Classes
(C++11)
Algorithms
Iterators
Exceptions
Traits
Constants
(C++11)
Regex Grammar
 
 
bool empty() const;
(since C++11)

Checks whether the match was successful.

Contents

[edit] Parameters

(none)

[edit] Return value

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

[edit] Exceptions

May throw implementation-defined exceptions.

[edit] Complexity

Constant.

[edit] See also

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