Ordinal Number Generator in C

A program that I wrote using C as my programming language that will ask the user to give a number and then our program will generate the ordinal numerical values in a given number by our user. In this sample program I am using Turbo C 2.0 For DOS that is widely available free to download over the Internet.

If you  have some questions please send me an email at jake.r.pomperada@gmail.com and jakerpomperada@yahoo.com. 

My mobile number here in the Philippines is 09173084360.

Program Listing

/* ordinal.c */

/* Written By: Mr. Jake R. Pomperada, MAED-IT */

/* Tools : Turbo C 2.0 For DOS                */

/* Date  : November 24, 2015                 */

#include <stdio.h>

#include <conio.h>

int test(int i) {

char *message;

int a=0, mod100 = 0, mod10 = 0;

printf("\n");

for (a=1; a<=i; a++) {

 mod100 = a % 100;

 mod10 = a % 10;

if (mod10 == 1 && mod100 != 11) {

   message= "st";

} else if  (mod10 == 2 && mod100 != 12) {

 message="nd";

}

else if  (mod10 == 3 && mod100 != 13) {

message= "rd";

} else {

 message= "th";

 }

 cprintf(" %d%s  " ,a,message);

 delay(2000);

}

}

main(){

  int number=0;

  clrscr();

  textcolor(WHITE);

  printf("\n");

  cprintf("Ordinal Number Generator in C");

  printf("\n\n");

  cprintf("Enter a number : ");

  scanf("%d",&number);

  test(number);

  printf("\n\n");

  cprintf(" End of Program");

  getche();

}