File: main_ref.cpp

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fast-float 8.0.0-0.1
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#include "fast_float/fast_float.h"

double get(char const *input) {
  double result_value;
  auto result =
      fast_float::from_chars(input, input + strlen(input), result_value);
  if (result.ec != std::errc()) {
    return 10;
  }
  return result_value;
}

int main(int arg, char **argv) {
  double x = get(argv[0]);
  return int(x);
}