string format for intptr_t and uintptr_t

Question

What is the string format for intptr_t and uintptr_t which is valid for both the 32 and 64 bit architecture .

EDIT

warning: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type "AAA"

This is the warning i am getting in 64 bit but not in 32 bit.

  intptr_t  AAA

Answer 1

That would be the following macros from inttypes.h:

For printf: PRIdPTR PRIiPTR PRIoPTR PRIuPTR PRIxPTR PRIXPTR

For scanf: SCNdPTR SCNiPTR SCNoPTR SCNuPTR SCNxPTR

Usage example:

uintptr_t p = SOME_VALUE;
printf("Here's a pointer for you: %" PRIxPTR "\n", p);