test.cc

gistfile1.txt

#include <cctype>
#include <stdlib.h>
#include <stdio.h>
#include <string>
#include <regex>

int main() {
  std::string str("abcdefg");
  std::regex pattern(".+");
  bool result = std::regex_match(str, pattern);
  if (!result) {
    abort();
  }

  for (auto &c : str) {
    printf("%d\n", c);
  }
}