std::match_results
Template:cpp/regex/match results/sidebar
| Defined in header <regex>
|
||
| template< class BidirectionalIterator, |
(since C++11) | |
The class template std::match_results holds a collection of character sequences that represent the result of a regular expression match.
This is a specialized allocator-aware container. It can only be default created or modified by passing to the std::regex_search() or std::regex_match() algorithms.
The first sub_match (index 0) contained in a match_result always represents the full match within a target sequence made by a regex, and subsequent sub_matches represent sub-expression matches corresponding in sequence to the left parenthesis delimiting the sub-expression in the regex.
Several specializations for common character sequence types are provided:
| Defined in header
<regex> | |
| Type | Definition |
cmatch
|
match_results<const char*> |
wcmatch
|
match_results<const wchar_t*> |
smatch
|
match_results<std::string::const_iterator> |
wsmatch
|
match_results<std::wstring::const_iterator> |
Contents |
Member types
| Member type | Definition |
allocator_type
|
Allocator |
value_type
|
std::sub_match<BidirectionalIterator> |
const_reference
|
const value_type& |
reference
|
const_reference |
const_iterator
|
implementation defined (depends on the underlying container) |
iterator
|
const_iterator |
difference_type
|
std::iterator_traits<BidirectionalIterator>::difference_type |
size_type
|
std::allocator_traits<Allocator>::size_type |
char_type
|
std::iterator_traits<BidirectionalIterator>::value_type |
string_type
|
std::basic_string<char_type> |