FWIW I compiled this with gcc 4.9.3 -O3 and got: satd.c:7:29: warning: iteration... | Hacker News

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ursus_bonum on March 4, 2016 | parent | context | favorite | on: What every compiler writer should know about progr...

FWIW I compiled this with gcc 4.9.3 -O3 and got:

    satd.c:7:29: warning: iteration 15u invokes undefined behavior [-Waggressive-loop-optimizations]
         for (dd=d[k=0]; k<16; dd=d[++k]) {
                                 ^

Mindless2112 on March 4, 2016 [–]

Good evidence that compiler writers aren't quite so malicious as the author portrays.

Warnings, not optimizations, are what most programmers actually want from undefined behavior.

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