RE: [png-mng-implement] libpng 1.4 type system done right

[Bob F. <bfr...@si...>]

On Mon, 24 Apr 2006, John Bowler wrote:
>
> I believe that this change at least is an API change:
>
>> #if !defined(INT_MAX) || (INT_MAX < 0x7fffffffL)
>> typedef unsigned long png_uint_32;
>> typedef long png_int_32;
>> #else
>> typedef unsigned int png_uint_32;
>> typedef int png_int_32;
>> #endif
>
> Because it changes the size of (sizeof) png_[u]int_32 on some
> machines (any machine where (int) and (long) are not identical
> and INT_MAX is less than 2^31-1).

To me, "API change" means that a properly written application had to 
make source code changes in order to continue working properly.  If 
the application is using png_uint_32/png_int_32 then this does not 
sound like an "API change" to me.

Bob
======================================
Bob Friesenhahn
bfr...@si..., http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/