Hex to int conversion (full string)

A pure C function that will do the hex-2-int conversion.
This function takes the whole hexadecimal string.
You need:
- http://objective-c-functions.blogspot.com/2013/07/hex-to-int-conversion-single-char.html


/** Convert a hex number to an int.

 @param p Characters of the hexadecimal value.
 @return Returns the integer value.

 */
int hex2(char *p) {
    int i;
    unsigned char c;
    i = hex(*p++);
    if (i < 0) return i;
    c = (i << 4);
    i = hex(*p);
    if (i < 0) return i;
    return c | i;
}


Download the ready-for-use source file (.m) of Hex to int conversion (full string)