This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Infering that the condition of a for loop is initially true?


On Sep 18 2017, nisse@lysator.liu.se (Niels Möller) wrote:

> I imagine the C standard might specify that assert "completely
> disappears" if -DNDEBUG is defined. But maybe there's room for a
> -fstrict-assert optimization flag, to let assert always guide
> optimization?

The problem is that assert is not allowed to evaluate the expression
with -DNDEBUG, and side effects must not be carried out.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]