training

Code I wrote during training
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revint.c (529B)

      1 /* Exercise 5.28 */
      2 
      3 #include <stdio.h>
      4 #include <math.h>
      5 
      6 void revint(int);
      7 
      8 int main()
      9 {
     10    int number;
     11 
     12    printf("Give me a number: ");
     13    scanf("%d", &number);
     14 
     15    revint(number);
     16    printf("\n");
     17 
     18    return 0;
     19 } /* E0F main */
     20 
     21 /* print a int to reverse */
     22 void revint(int num)
     23 {
     24    int i;
     25 
     26    if(num > pow(10, 9)) {
     27       printf("Number is too large!");
     28       return;
     29    }
     30    for(i = 1; i <= pow(10, 8); i *= 10) {
     31       if(num / i % 10)
     32          printf("%d", num  / i % 10);
     33    } /* end for (i) */
     34 
     35 } /* eof revint() */
     36