This should be done in C programing (not c++), im using the book, programming in

Question

This should be done in C programing (not c++), im using the book, programming in C by kochan), but its at least for me hard to understand :S

Write a function called findString to determine if one character string exists

inside another string.The first argument to the function should be the character

string that is to be searched and the second argument is the string you are interested

in finding. If the function finds the specified string, have it return the location

in the source string where the string was found. If the function does not find the

string, have it return

Explanation / Answer

Your function is almost correct with minor correction: Please have a look:

#include <stdio.h>

#define false 0

#define true 1

// find s1 inside source, return index number if found, -1 if not found

int findString(const char source[], const char s[])

{

int i, j, foundit = false; // try each character in source

for (i = 0; source[i] != '' && !foundit; ++i)

{

foundit = true; // now see if corresponding chars from s match

for (j = 0; s[j] != '' && foundit; ++j)

if(source[j + i] != s[j] || source[j + i] == '')

foundit = false;

if(foundit)

return i;

}

return -1;

}

int main()

{

int index = findString("a chatterbox", "bo");

printf("%d", index);

scanf("%d", &index);

}

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