[cfe-dev] Integer and Float type definitions with respect to bits number

[Mehmet Erol Sanliturk]

On Sun, Nov 10, 2013 at 1:29 PM, Halfdan Ingvarsson <halfdan at sidefx.com>wrote:

>  Have a look at <stdint.h> for integer types. This should be a part of
> your standard library for any C99-compliant compilers. For Windows, they're
> included in MSVC2012 onwards.
>
> float and double are always defined to be 32- and 64-bit, respectively.
> Beyond that you're in a platform-specific extension area. See, for example:
> http://gcc.gnu.org/onlinedocs/gcc/Floating-Types.html
>
>  - ½
>
>

In Linux :
/usr/lib/clang/3.3/include/stdint.h

contains these definitions .

In Clang , there is no

quadmath.h .

When Clang encounters

#include <quadmath.h>

it is using gcc source , but it is giving errors .

( In /usr/lib/gcc/x86_86-redhat-linux/4.7.2/include/quadmath.h ,
there are  __float128 and __complex128 )

I could not find any __float64 , __float80 , __complex64 , __complex80 .



Thank you very much .




> On 13-11-10 10:38 AM, Mehmet Erol Sanliturk wrote:
>
>
> Dears All ,
>
>
> It seems that , in Clang , there is no a type system like the following :
>
>
> Integer_8_Bits_Positive
> Integer_8_Bits_Signed
>
>
>
> Integer_16_Bits_Positive
> Integer_16_Bits_Signed
>
>
>
> Integer_32_Bits_Positive
> Integer_32_Bits_Signed
>
>
> Integer_64_Bits_Positive
> Integer_64_Bits_Signed
>
>
>
>
> Float_48_Bits
> Float_64_Bits
> Float_80_Bits
> Float_128_Bits
>
>
> The following are defined with respect to above types AND Operating System
> ,
> Processor requirements to enable to compile the SAME sources for different
> environments :
>
> Integer_Default_Bits_Positive
> Integer_Default_Bits_Signed
>
> Float_Default_Bits
>
>
> The existing definitions ( long , long long , etc. ) are very ambiguous and
> depending on the platform without clearly showing exact bits number .
>
>
>
> Is there a possibility to include definitions such as above into Clang
> or , if there exist such a definition , what is its name ?
>
>
> Thank you very much .
>
> Mehmet Erol Sanliturk
>
>
>
>
>
>
>
> _______________________________________________
> cfe-dev mailing listcfe-dev at cs.uiuc.eduhttp://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>
>
>
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