/* Demonstration of printf(). */

#include <stdio.h>

char *m1 = "Binary";
char *m2 = "Decimal";
char *m3 = "Octal";
char *m4 = "Hexadecimal";

main()
{
     float d1 = (float) 10000.123;
     int n = 0;


     puts("Outputting a number with different field widths.\n");

     printf("%5f\n", d1);
     printf("%10f\n", d1);
     printf("%15f\n", d1);
     printf("%20f\n", d1);
     printf("%25f\n", d1);

     puts("\n Press Enter to continue...");
     fflush(stdin);
     getchar();

     puts("\nUse the * field width specifier to obtain field width");
     puts("from a variable in the argument list.\n");

     for (n=5;n<=25; n+=5)
         printf("%*f\n", n, d1);

     puts("\n Press Enter to continue...");
     fflush(stdin);
     getchar();

     puts("\nInclude leading zeros.\n");

     printf("%05f\n", d1);
     printf("%010f\n", d1);
     printf("%015f\n", d1);
     printf("%020f\n", d1);
     printf("%025f\n", d1);

     puts("\n Press Enter to continue...");
     fflush(stdin);
     getchar();

     puts("\nDisplay in octal, decimal, and hexadecimal.");
     puts("Use # to precede octal and hex output with 0 and 0X.");
     puts("Use - to left-justify each value in its field.");
     puts("First display column labels.\n");

     printf("%-15s%-15s%-15s", m2, m3, m4);

     for (n = 1;n< 20; n++)
         printf("\n%-15d%-#15o%-#15X", n, n, n);

     puts("\n Press Enter to continue...");
     fflush(stdin);
     getchar();

     puts("\n\nUse the %n conversion command to count characters.\n");

     printf("%s%s%s%s%n", m1, m2, m3, m4, &n);

     printf("\n\nThe last printf() output %d characters.\n", n);

     return 0;
}