Re: [Tinycc-devel] casting bug?

[Alexander Strasser]

Felix Nawothnig wrote:
> Alexander Strasser wrote:
> >  This no-guarantee-about-sizes-in-C thing begins to hurt nowadays ;)
> 
> ANSI C89 guarantees quite some stuff about sizes:
> 
> At least 8 bit for chars, at least 16 bit for shorts and ints, and at 
> least 32 bit for longs (and I guess ISO C99 adds at least 64 bit for 
> long longs).
> 
> It also guarantees that sizeof(char) <= sizeof(short) <= sizeof(int) <= 
> sizeof(long). (again I guess ISO C99 adds <= sizeof(long long))
> 
> And then there are the fixed size types in ISO C99 ofcourse...

  I know that there are some relative guarantees, but
that wasn't what i meant (or it was; depends on your view).

> >Maybe it is really best to use special types like int_fast32_t
> >these times... (or role your own set of types to replace them
> >with the appropriate type depending on compiler and arch).
> 
> There is no such thing as a fast 32bit integer on sane (read: non 
> x86-64) 64bit architectures.

  Sorry, I don't get what you say here.
What I said was especially in regard to the decision of some
compilers to use the LP64 or LLP64 type models.

  Alex (beastd)