dev/c/endian/write_int32.c

#include <stdint.h>
#include <stdio.h>

int main (void)
{
  int32_t i = 1;

  FILE *fid = fopen ("int32.out", "w+");

  if (!fid) {
    perror ("Failed to open int32.out for write\n");
    goto end;
  }

  fwrite (&i, sizeof (i), 1, fid);

  fclose (fid);

end:

  return 0;
}