Question

Complete a function definition in C for strmatch. For this problem, you can't use any <string.h> library functions.

In c, two strings match exactly if they have the same characters in the same order and same length. Consider this:

int strmatch(const char *x, const char *b);

//Needs each of x and y points to the beginning of a string.

//Promises to return value 1 if the two strings match exactly. If they don't match, the return value is 0.

For instance: the value of strmatch("xyz", "xyz") should be 1;

the value of strmatch("xy", "xyz") should be 0;

Answer 1

#include <stdio.h>

int strmatch(const char *x, const char *b){
    int i = 0;
    while(!(x[i]=='\0' || b[i]=='\0')){
        if(x[i]!=b[i]){
            return 0;
        }
        i++;
    }
    if(x[i]=='\0' && b[i]=='\0'){
        return 1;
    }
    return 0;
}


int main()
{
    printf("%d\n",strmatch("xyz", "xyz"));
    printf("%d\n",strmatch("xy", "xyz"));
   return 0;
}