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On Fri, 1 Jul 2011 00:58:46 +0000 (UTC) |
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Duncan <1i5t5.duncan@×××.net> wrote: |
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> |
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> I had wondered if this might be an "undefined behavior" optimization bug, |
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> |
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Well, the amd64 users list may not be the appropriate place to discuss |
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C programming, but the problem here stems from attempting to do things |
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with C that are not supposed to be done with C. Such things are aptly |
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called "tricks" because they stray away from the convention. |
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Ideally, I suppose, for these purposes would be to use assembly language |
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routines mixed into the C code. But this is not as easy as with the |
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"tricks." |
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Anyway, I'm glad I presented this issue. It has definitely improved |
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my understanding. GCC has dozens, if not hundreds, of compile options |
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and I know the actual function of only a small few. |
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Frank Peters |
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