On Thu, 24 May 2018, Liu Hao wrote:
在 2018/5/24 14:59, Martin Storsjö 写道:
That seems like a very new addition, too new to rely on. Notice how it
is present in the 7.1.0 docs [1] but missing in the 6.1.0 docs [2].
Additionally, clang does seem to define this kind of macros, but not all
of them (it defines e.g. __SIZE_WIDTH__ but not __LONG_WIDTH__).
Got it. `sizeof(long) * __CHAR_BIT__` should suffice.
No, not sizeof(long). It would be sizeof(__LONG32), or sizeof(Mask).
But I checked with MSYS2 for x64, and even if sizeof(long) == 8, it still
has got sizeof(__LONG32) == 4, just as it should.
So with that, I think the extra rewrite is a little pointless since it's a
datatype that has the exact size written in the type name itself. Buf if
you insist, I could make it sizeof(__LONG32).
// Martin
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