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

int main(int argc, char** argv) {

  FILE* fp = fopen("x.dat", "w");

  // write one character string plus a short int and a float
  //
  char a[99];
  short int b;
  float c;

  strcpy(a, "a"); b = 1; c = 1.0;
  fwrite(a, strlen(a) + 1, 1, fp);
  fwrite(&b, sizeof(short int), 1, fp);
  fwrite(&c, sizeof(float), 1, fp);

  strcpy(a, "abc"); b = 2; c = 2.0;
  fwrite(a, strlen(a) + 1, 1, fp);
  fwrite(&b, sizeof(short int), 1, fp);
  fwrite(&c, sizeof(float), 1, fp);

  strcpy(a, "abcde"); b = 3; c = 3.0;
  fwrite(a, strlen(a) + 1, 1, fp);
  fwrite(&b, sizeof(short int), 1, fp);
  fwrite(&c, sizeof(float), 1, fp);


  fclose(fp);
}