std::match_results<BidirIt,Alloc>:: empty
From cppreference.com
<
cpp
|
regex
|
match results
C++
Regular expressions library
| Classes | ||||
|
(C++11)
|
||||
|
(C++11)
|
||||
|
(C++11)
|
||||
| Algorithms | ||||
|
(C++11)
|
||||
|
(C++11)
|
||||
|
(C++11)
|
||||
| Iterators | ||||
|
(C++11)
|
||||
|
(C++11)
|
||||
| Exceptions | ||||
|
(C++11)
|
||||
| Traits | ||||
|
(C++11)
|
||||
| Constants | ||||
|
(C++11)
|
||||
|
(C++11)
|
||||
|
(C++11)
|
||||
| Regex Grammar | ||||
|
(C++11)
|
std::match_results
| Member functions | ||||
| State | ||||
| Element access | ||||
|
match_results::empty
|
||||
| Iterators | ||||
| Format | ||||
| Modifiers | ||||
| Non-member functions | ||||
|
(until C++20)
|
||||
|
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) |
Retrieved from "
https://en.cppreference.com/mwiki/index.php?title=cpp/regex/match_results/empty&oldid=173029
"