Re: [Boost-users] Boost with Darwin (Mac) gcc 4.0.1

From: Marshall Clow (marshall_at_[hidden])
Date: 2008-07-13 15:49:58

At 9:38 PM +0200 7/13/08, Mathieu Peyréga wrote:
>Marshall Clow a écrit :
>>
>>At 7:46 AM +0200 7/13/08, Mathieu Peyréga wrote:
>>>Hello,
>>>
>>>I have an issue with i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 
>>>(Apple Inc. build 5465)
>>>
>>>it seem to appear with the keyword "check"
>>>for example on files :
>>>
>>>detail/is_dereferencable.hpp
>>>detail/is_incrementable.hpp
>>>
>>>bzip2.hpp
>>>
>>>I have some compilation like : "error: declaration does not 
>>>declare anything"
>>>
>>>wich disappears if i rename the check in both first files to 
>>>check_ (everywhere in the file)
>>>
>>>and check_error in the third one... (and of course in the 
>>>bzip2.cpp file too then)
>>>
>>>It does not happen on the very same code with gcc-4.3.0 (mingw 
>>>version) nor vc8.0
>>>
>>>does this renaming have possible side effects I have not seen (my 
>>>code compiles, links, and seems to run with the modification...)
>>>
>>>Any explainations for this ?
>>
>>Are you including <AssertMacros.h> (directly or indirectly)?
>>It defines macros named "check" and "check_error".
>>The file is located at: /usr/include/AssertMacros.h.
>
>I don't know yet... i'll check when i have a little time... anyway i 
>guess it is a good and possible explanation... and maybe a good 
>reason to change the names in the boost side (of the moon) ;-) what 
>do you think ?
>
>regards,
>
>Mathieu
>--
>http://www.incub.net/
>

An easy check is to #define __ASSERTMACROS__ somewhere before you 
include any files.
[ assuming no precompiled headers ]

As for changing boost, I'm not the best person to say.
It really annoys me that Apple defines those macros; they're useful 
names, not all caps, and the functionality that they implement makes 
code (IMSHO) harder to read.

My suggestion would be to avoid them (the macros) altogether - by not 
including that header file.
-- 
-- Marshall
Marshall Clow     Idio Software   <mailto:marshall_at_[hidden]>
It is by caffeine alone I set my mind in motion.
It is by the beans of Java that thoughts acquire speed,
the hands acquire shaking, the shaking becomes a warning.
It is by caffeine alone I set my mind in motion.