[GiNaC-list] Possible size issue in test in numeric.cpp
Pierangelo Masarati
masarati at aero.polimi.it
Wed Aug 16 14:53:09 CEST 2006
Chris Dams writes:
>> My guess is that the test is incorrect on those architectures, but I
>> admit I haven't investigated enough.
>
> I'm not a CLN expert either, but to me it does not seem that the code is
> incorrect. On the AMD 64 platform it is apparently always okay to apply
> the constructor cl_I(int) no matter how large the integer argument is. If
> the compiler is smart enough, it will automatically do what your patch is
> doing (i.e., throw the if out of the code), so I fail to see benefits from
> your patch.
OK, my main concern was about removing a couple annoying warnings (BTW:
congratulations: they were the only warnings in the whole package, which
seems pretty unusual to me, and a good programming practice).
However, as far as I understand, although the code being safe, a test and a
cast will always occur even if it's never required. It's not a big deal, I
concur, but it looks like a misuse of the CLN definitions. My 2c.
Cheers, p.
Dr. Pierangelo Masarati | voice: +39 02 2399 8309
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