Retrieving an address stored as a string

Question

I have a string

char value[16]="ffffffffc06e91"

and I need to retrieve the address stored as a string in the variable value.

ie..

void * ptr = NULL;
somefunction(value,ptr); // ptr = 0xffffffffc06e91

Is there such a function or a method to do so ?

Thanks

Answer 1

We could use strtol to accomplish this, thanks to @Bwebb for pointing out atoi which led me to strtol.

void * ptr = (void*)(long)strtol(value,NULL,16);

Answer 2

Don't use atoi(); an int value probably isn't big enough to store this value, and the function won't work with hexadecimal strings.

Use strtoll() instead:

void *ptr = (void*)strtoll("ffffffffc06e91", NULL, 16);