Thread: string suffix

Please have a glance. It has to find if the first string suffix of second one.
e.g. 1st world
2nd hello word
hey-you done it! it is a suffix and so on

Code:

#include <stdio.h>

int  strlength(char *string)
{
    int i=0;
    while (string[i]) i++;
    return i;
}

int issuffix(char * string1, char * string2)
{

    int i,e=0, rest;
    rest= strlength(string1)-strlength(string2);
    if (strlength(string1) > strlength(string2))
        return 0;
    for (i=rest; string1[i]; i++)
        for (e=0; string2[i]; e++)
        {
            if (string1[i] != string2[e])
                return 0;
        }


    return 1;

}

main()

{
    char stringA[1024], stringB[1024];
    int n;

    printf("string1: ");
    scanf("%c[^\n]", stringA);

    printf("string2: ");
    scanf("%c[^\n]", stringB);

    n=issuffix(stringA,stringB);
    if (n)
        printf(" \"%s\" is a suffix of %s\n",stringA, stringB);
    else
        printf(" \"%s\" is NOT a suffix of %s\n",stringA, stringB);

}

Please note that

Code:

while (string[i]) i++;

can be written as

Code:

while (string[i++]);

I believe the strlen() is done this way as well. As far as the space before the expression " %[^\n]", does your string you are passing in contain a space at the beginning followed by the carriage return? When using scanf() , you really must know how your data is presented to that function for proper parsing.