Code Forums - View Single Post - Reverse String in C (w/o STL or New Buffer)

QUantumAnenome · 11-08-2005, 03:37 PM

Don't really need tmp.

Code:

        tmp=str[i];
        str[i]=str[j];
        str[j]=tmp;

can be rewritten as

Code:

        str[i] ^= str[j];
        str[j] ^= str[i];
        str[i] ^= str[j];

11-08-2005, 03:37 PM	#6 (permalink)
QUantumAnenome Code Monkey Join Date: Mar 2005 Posts: 56	Don't really need tmp. Code: tmp=str[i]; str[i]=str[j]; str[j]=tmp; can be rewritten as Code: str[i] ^= str[j]; str[j] ^= str[i]; str[i] ^= str[j];