CS256 - Principles of Structured Design Fall 2021

Displaying ./code/cs256su21code/midtermSol/p5.c

/*

5. Write a function named charFreq that takes in a character array and a single character, and returns
   an integer that tells us how many times that character appears.

   Hint: This is along the same lines as the myStrlen in the jun22 directory and the charExists in the
         jun15 directory of the in-class code.

*/

#include <stdio.h>

int charFreq(char s[], char c);

int main(){

   char str[256];
   char ch;
   int freq;

   printf("Enter a string: ");
   fgets(str, 256, stdin);
   printf("Enter a character: ");
   ch = getchar();

   freq = charFreq(str, ch);

   printf("The character %c appears %d times in the string.\n", ch, freq);

   return 0;

}

int charFreq(char s[], char c){

   int count = 0;

   for(int i = 0; s[i] != '\0'; i++){
      if(s[i] == c)
         count++;
   }

   return count;

}