void reverseString(char *aString)
{
int iEnd = strlen(aString);
iEnd–; // need to offset last character
int iStart = 0;

while( iEnd > iStart )
{
char c = aString[iStart];
aString[iStart] = aString[iEnd];
aString[iEnd] = c;
iEnd–;
iStart++;
}
}