The language does give it tyou in sscanf, but sscanf is a pretty big function and in some environments, like small embedded ones, you don't get the luxury of using a big block of code to do a small thing.
unsigned hex_to_unsigned(char *p) { unsigned val = 0; while (*p != '\0') { char c = *p++; if ('a' <= c && c <= 'f') val = (val << 4) + (c - 'a' + 10); else if ('A' <= c && c <= 'F') val = (val << 4) + (c - 'A' + 10); else if ('0' <= c && c <= '9') val = (val << 4) + (c - '0'); else break; // quit early on non-hex char } return val; } On Sep 1, 12:34 pm, rShetty <rajeevr...@gmail.com> wrote: > Given a Hexadecimal value as a string, give a C Code to convert it > into decimal value? > If 0xff then output should be 255. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.