Re: [Imlab-users] Fwd: IM 3.1 compiling on ARM

[Antonio S. <sc...@te...>]

At 15:03 19/7/2006, Jesse Schwartzentruber wrote:
>I am trying to use IM on an ARM platform, and I can make it compile
>okay, except for warnings such as the following:
>im_converttype.cpp
>im_converttype.cpp: In function `int iConvertInt2Int(int, const SRCT*,
>DSTT*, int, int, int) [with SRCT = imbyte, DSTT = imushort]':
>im_converttype.cpp:392:   instantiated from here
>im_converttype.cpp:130: warning: comparison is always true due to
>limited range of data type
>im_converttype.cpp:130: warning: comparison is always true due to
>limited range of data type
>im_converttype.cpp: In function `int iConvertInt2Int(int, const SRCT*,
>DSTT*, int, int, int) [with SRCT = imbyte, DSTT = int]':
>im_converttype.cpp:398:   instantiated from here
>im_converttype.cpp:130: warning: comparison is always true due to
>limited range of data type
>im_converttype.cpp:130: warning: comparison is always true due to
>limited range of data type
>I know C very well, but I don't understand the C++ code here. I don't
>know why these comparisons are failing.

   That warnings should be harmless. Do not worry about them.


>The result of using the library is that I can do some things, such 
>as loading files and saving
>them in different formats, but when I try to change an RGB image to
>BINARY or GRAY, for example, the image comes out almost completely
>black, but using imlab on the desktop to convert the same image to
>binary works fine.

   Notice that the warnings are on "im_converttype.cpp" that do not 
affect the color convertions in "im_convertcolor.cpp". Any warnings 
on that module?

Best,
scuri