fast_float/tests/example_comma_test.cpp

#include "fast_float/fast_float.h"
#include <iostream>
#include <string>
#include <system_error>

int main() {
  const std::string input = "3,1416 xyz ";
  double result;
  fast_float::parse_options options{fast_float::chars_format::general, ','};
  auto answer = fast_float::from_chars_advanced(
      input.data(), input.data() + input.size(), result, options);
  if ((answer.ec != std::errc()) || ((result != 3.1416))) {
    std::cerr << "parsing failure\n";
    return EXIT_FAILURE;
  }
  std::cout << "parsed the number " << result << std::endl;
  return EXIT_SUCCESS;
}