regex_match Function in C++
#include <iostream>
#include <string>
#include <regex>
using namespace std;
int main () {
if (regex_match ("softwareTesting", regex("(soft)(.*)") ))
cout << "string:literal => matched\n";
const char mystr[] = "SoftwareTestingHelp";
string str ("software");
regex str_expr ("(soft)(.*)");
if (regex_match (str,str_expr))
cout << "string:object => matched\n";
if ( regex_match ( str.begin(), str.end(), str_expr ) )
cout << "string:range(begin-end)=> matched\n";
cmatch cm;
regex_match (mystr,cm,str_expr);
smatch sm;
regex_match (str,sm,str_expr);
regex_match ( str.cbegin(), str.cend(), sm, str_expr);
cout << "String:range, size:" << sm.size() << " matches\n";
regex_match ( mystr, cm, str_expr, regex_constants::match_default );
cout << "the matches are: ";
for (unsigned i=0; i<sm.size(); ++i) {
cout << "[" << sm[i] << "] ";
}
cout << endl;
return 0;
}