src/kr_exercises/ch1/s1.5/count_btn.c

   1 /* Desc: Counts blanks, tabs, and newlines */
   2 /* Ref/Attrib: K&R 2nd Ed. Exercise 1-8 */
   3
   4 #include <stdio.h>
   5 int main() {
   6   int c, cb, ct, cnl;
   7
   8   /* Initialize counters */
   9   cb = 0;
  10   ct = 0;
  11   cnl = 0;
  12
  13   /* User prompt loop. */
  14   while((c = getchar()) != EOF) {
  15     /* Detect blanks character */
  16     if(c == ' ')
  17       ++cb;
  18
  19     /* Detect tab character */
  20     if(c == '\t')
  21       ++ct;
  22
  23     /* Detect newline character */
  24     if(c == '\n')
  25       ++cnl;
  26   };
  27
  28   /* Print results. */
  29   printf("Blnk:\t%d\n", cb);
  30   printf("Tabs:\t%d\n", ct);
  31   printf("Nwln:\t%d\n", cnl);
  32   printf("\nDone.\n");
  33 };
  34
  35 /* Author: Steven Baltakatei Sandoval
  36    License: GPLv3+ */