Difference between revisions of "cpp/regex/regex search"
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Alloc | Alloc | ||
>& m, | >& m, | ||
| − | const std::basic_regex< | + | const std::basic_regex<CharT, Traits>& e, |
std::regex_constants::match_flag_type flags {{=}} | std::regex_constants::match_flag_type flags {{=}} | ||
std::regex_constants::match_default ); | std::regex_constants::match_default ); | ||
Revision as of 01:38, 17 October 2012
Template:ddcl list begin <tr class="t-dsc-header">
<td><regex>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td > class Alloc, class CharT, class Traits >
bool regex_search( BidirIt first, BidirIt last,
std::match_results<BidirIt,Alloc>& m,
const std::basic_regex<CharT,Traits>& e,
std::regex_constants::match_flag_type flags =
<td > (1) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >bool regex_search( const CharT* str,
std::match_results<BidirIt,Alloc>& m,
const std::basic_regex<CharT,Traits>& e,
std::regex_constants::match_flag_type flags =
<td > (2) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td > class Alloc, class CharT, class Traits >
bool regex_search( const std::basic_string<CharT,STraits,SAlloc>& s,
std::match_results<
typename std::basic_string<CharT,STraits,SAlloc>::const_iterator,
Alloc
>& m,
const std::basic_regex<CharT, Traits>& e,
std::regex_constants::match_flag_type flags =
<td > (3) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td > class CharT, class Traits >
bool regex_search( BidirIt first, BidirIt last,
const std::basic_regex<CharT,Traits>& e,
std::regex_constants::match_flag_type flags =
<td > (4) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td >bool regex_search( const CharT* str,
const std::basic_regex<CharT,Traits>& e,
std::regex_constants::match_flag_type flags =
<td > (5) </td> <td > (since C++11) </td> </tr> <tr class="t-dcl ">
<td > class CharT, class Traits >
bool regex_search( const std::basic_string<CharT,STraits,SAlloc>& s,
const std::basic_regex<CharT,Traits>& e,
std::regex_constants::match_flag_type flags =
<td > (6) </td> <td > (since C++11) </td> </tr> Template:ddcl list end
1) Determines if there is a match between the regular express e and some subsequence in the target character sequence [first,last). Match results are returned in m.
2) Returns std::regex_search(str, str + std::char_traits<charT>::length(str), m, e, flags).
3) Returns std::regex_search(s.begin(), s.end(), m, e, flags).
4) The same as (1), omitting the match results.
5) Returns std::regex_search(str, str + std::char_traits<charT>::length(str), e, flags).
6) Returns std::regex_search(s.begin(), s.end(), e, flags).
Parameters
| first, last | - | the target character range |
| m | - | the match results |
| str | - | a target character null-terminated C-style string |
| s | - | a target character std::basic_string |
| e | - | the std::regex |
| flags | - | the match flags |
| Type requirements | ||
-BidirIt must meet the requirements of LegacyBidirectionalIterator.
| ||
-Alloc must meet the requirements of Allocator.
| ||
Return value
Returns true if a match exists somewhere in the target sequence, false otherwise.
