public member function
<regex>
const_iterator cbegin() const;
Return const_iterator to beginning
Return value
An iterator to to the sub_match object describing the first match in the match_results object.
Member type const_iterator (the same as member type iterator) is a forward iterator type.
The matches contained in a match_results object are always const.
Example
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// match_results::cbegin/cend
// - using smatch, a standard alias of match_results<string::iterator>
#include <iostream>
#include <string>
#include <regex>
int main ()
{
std::string s ("subject");
std::smatch m;
std::regex e ("(sub)(.*)");
std::regex_match ( s, m, e );
std::cout << "matches:" << std::endl;
for (std::smatch::iterator it = m.cbegin(); it!=m.cend(); ++it) {
std::cout << *it << std::endl;
}
return 0;
}
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Output:
matches:
subject
sub
ject
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