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From: Andy Moreton <andy DOT moreton AT artimi DOT com>
Subject:  RE: Strange behaviour with g++ 3.4.4-1
Date: Tue, 27 Sep 2005 13:58:16 +0000 (UTC)
Lines: 41
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References:  <Pine DOT OSF DOT 4 DOT 21 DOT 0509262334460 DOT 24737-100000 AT ax0rm1 DOT roma1 DOT infn DOT it>
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On Mon, 26 Sep 2005 21:41:29 GMT, Angelo Graziosi wrote:

> 
> 
> Dave Korn wrote:
> 
> 
>> You can fix it like this:
>>
>> dk AT mace /test/cplus> g++ test.fixed.cpp -o test
>> dk AT mace /test/cplus> diff -pu test.cpp test.fixed.cpp
>> --- test.cpp    2005-09-26 10:52:37.405042000 +0100
>> +++ test.fixed.cpp      2005-09-26 10:52:26.555119000 +0100
>> @@ -1,6 +1,8 @@
>> 
>>  #include <iostream>
>>  #include <windows.h>
>> +#undef max
>> +#undef min
>>  #include <complex>
> 
> 
> Thanks, Dave, for the patch.
> 
> I would know if there is some bug somewhere: it sounds strange that moving
> the header 'windows.h' at the beginning or at the end of includes
> sequence, the build works fine.

The problem is that "windows.h" includes "windef.h" which defines the 
standard macros min() and max() without checking if they are already 
defined. You can prevent this behaviour by doing:

//....
#define NOMINMAX
#include "windows.h"
//....

This will prevent the macros from being (illegally) defined twice with 
differing contents.

    	AndyM


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