Messages in this thread | | | Date | Mon, 18 May 1998 16:03:51 +0200 | From | Pavel Machek <> | Subject | Re: 2.1.101 warnings on alpha (patch) |
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Hi!
> How does one check whether the host is 64bitty? Like in the above > "#if" or is there another (standard) way? > > Unfortunately there is no failsafe way. This is because as a cross > compiler gcc from 32-->64 bit does not get things like: > > #if ((~0UL)==0xffffffff) > ... 32bit version ... > #else > ... 64bit version ... > #endif > > correct at all. I think it should be in an asm header file > personally, but if you notice the check for 64-bit is often done as:
I think that
+#if BITS_PER_LONG == 64
is good, clean, etc. way. What is wrong with it?
> which is pretty unclean and should be fixed up. But at the moment > there is no other reliable way to check it.
I believe that BITS_PER_LONG should be reliable - it was designed to be!
Pavel
-- The best software in life is free (not shareware)! Pavel GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
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