xtoi (Hex to Integer) C function

Tuesday, June 20, 2006 6:06 PM by

You mean "int to hex"?

Use sprintf:

char* output;

unsigned int value = 43981;

sprintf(output, "%X", value);

Edit:

From the comment below the page, you can see the C way of decoding hex from string using function:

unsigned int hex = 0;

const char* hexstr = "ABCD";

sscanf(hexstr, "%X", &hex);

printf("%s = %d\n", hexstr, hex);