Character [hex] to integer

I tried using atoi function to do this, but it didn't work.

I want to convert a string that says "0x44" to an integer (as 0x44 or its decimal equivalent).

Does anyone know of an开发者_Go百科y functions that could do that?

Yes. Use strtol instead, and specify 0 as the base.

I think this is what you are looking for...

#include<stdio.h>
#include<stdlib.h>

void main() {
  char* hex = "0x44";
  int i;

  sscanf( hex, "%x", &i );
  printf("%d\n", i);
}