On 12/6/20 4:05 AM, Bruno Haible wrote:
Hi Paul,
I installed the attached patch to do that
Very nice! I made a tweak to the first example, to use printf() instead of
print(). Hope you agree.
Your reaction to the *_WRAPV names just goes to show how bad I am with
marketing....
This set of macros would be worth publicizing, e.g. through an announcement
on planet.gnu.org. If you agree, we would
1) publish the current gnulib doc on www.gnu.org (as we do occasionally
anyway) [I can do that],
2) write a news entry in https://savannah.gnu.org/projects/gnulib
3) approve it, also through https://savannah.gnu.org/projects/gnulib
Sure, here's a quick draft at a news entry.
Gnulib's intprops module has new macros INT_ADD_OK, INT_SUBTRACT_OK, and
INT_MULTIPLY_OK that support portable overflow checking while doing integer
arithmetic. On GNU platforms the macros typically use only a single machine
instruction more than ordinary integer arithmetic would.
