fast_float/tests/strtod_test.c

#include "fast_float/fast_float_strtod.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

int main() {
  // Test successful conversion
  const char *str1 = "3.14159";
  char *end1;
  errno = 0;
  double d1 = fast_float_strtod(str1, &end1);
  printf("Input: %s\n", str1);
  printf("Converted: %f\n", d1);
  printf("End pointer: %s\n", end1);
  printf("errno: %d\n", errno);

  // Test invalid input
  const char *str2 = "invalid";
  char *end2;
  errno = 0;
  double d2 = fast_float_strtod(str2, &end2);
  printf("\nInput: %s\n", str2);
  printf("Converted: %f\n", d2);
  printf("End pointer: %s\n", end2);
  printf("errno: %d\n", errno);

  return 0;
}