// MyStrchr - search a given character within
//            a string. Return the index of
//            of the result.
#include <stdio.h> 
#include <iostream.h>

// myStrchr - return the index of a test
//            character in a string. Return
//            a -1 if the character not found.
int myStrchr(char target[], char testChar)
{
    // loop through the character string;
    // stop if we hit the end of the string
    int index = 0;
    while(target[index])
    {
        // if the current member of the
        // string matches the target
        // character...
        if (target[index] == testChar)
        {
            // ...then exit
            break;
        }

        // skip to the next character
        index++;
    }

    // if we ended up at the end of the
    // string without encountering the
    // character...
    if (target[index] == '\0')
    {
        // ...return a -1 rather than
        // the length of the array
        index = -1;
    }

    // return the index calculated
    return index;
}

// test the myStrchr function with different
// string combinations
void testFn(char szString[], char cTestChar)
{
    cout << "The offset of "
         << cTestChar
         << " in "
         << szString
         << " is "
         << myStrchr(szString, cTestChar)
         << "\n";
}

int main(int nArgs, char* pszArgs[])
{
    testFn("abcdefg", 'c');
    testFn("abcdefg", 'a');
    testFn("abcdefg", 'g');
    testFn("abcdefc", 'c');
    testFn("abcdefg", 'x');

    return 0;
}