[cfe-commits] r89343 - /cfe/trunk/lib/Headers/stdint.h

[Chris Lattner]

This is great work Ken!  Are the ptrdiff types ever actually different  
from the intptr types?

-Chris

On Nov 19, 2009, at 2:33 PM, Ken Dyck <ken.dyck at onsemi.com> wrote:

> Author: kjdyck
> Date: Thu Nov 19 06:33:01 2009
> New Revision: 89343
>
> URL: http://llvm.org/viewvc/llvm-project?rev=89343&view=rev
> Log:
> Construct the macro body of PTRDIFF_MAX and PTRDIFF_MIN from  
> __PTRDIFF_WIDTH__.
>
>
> Modified:
>    cfe/trunk/lib/Headers/stdint.h
>
> Modified: cfe/trunk/lib/Headers/stdint.h
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/stdint.h?rev=89343&r1=89342&r2=89343&view=diff
>
> === 
> === 
> === 
> =====================================================================
> --- cfe/trunk/lib/Headers/stdint.h (original)
> +++ cfe/trunk/lib/Headers/stdint.h Thu Nov 19 06:33:01 2009
> @@ -606,23 +606,19 @@
> #define  INTPTR_MIN __stdint_exjoin3( INT, __INTPTR_WIDTH__, _MIN)
> #define  INTPTR_MAX __stdint_exjoin3( INT, __INTPTR_WIDTH__, _MAX)
> #define UINTPTR_MAX __stdint_exjoin3(UINT, __INTPTR_WIDTH__, _MAX)
> +#define PTRDIFF_MIN __stdint_exjoin3( INT, __PTRDIFF_WIDTH__, _MIN)
> +#define PTRDIFF_MAX __stdint_exjoin3( INT, __PTRDIFF_WIDTH__, _MAX)
>
> #if __POINTER_WIDTH__ == 64
>
> -#define PTRDIFF_MIN  INT64_MIN
> -#define PTRDIFF_MAX  INT64_MAX
> #define SIZE_MAX    UINT64_MAX
>
> #elif __POINTER_WIDTH__ == 32
>
> -#define PTRDIFF_MIN  INT32_MIN
> -#define PTRDIFF_MAX  INT32_MAX
> #define SIZE_MAX    UINT32_MAX
>
> #elif __POINTER_WIDTH__ == 16
>
> -#define PTRDIFF_MIN  INT16_MIN
> -#define PTRDIFF_MAX  INT16_MAX
> #define SIZE_MAX    UINT16_MAX
>
> #else
>
>
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