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// match_results::prefix/suffix
// - using smatch, a standard alias of match_results<string::iterator>
#include <iostream>
#include <string>
#include <regex>
int main ()
{
std::string s ("there is a needle in this haystack");
std::smatch m;
std::regex e ("needle");
std::cout << "searching for needle in [" << s << "]\n";
std::regex_search ( s, m, e );
if (m.ready()) {
std::cout << m[0] << " found!\n";
std::cout << "prefix: [" << m.prefix() << "]\n";
std::cout << "suffix: [" << m.suffix() << "]\n";
}
return 0;
}
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