Re: [boost] win32.hpp and min/max macros

From: Ulrich Eckhardt (uli_at_[hidden])
Date: 2004-01-07 10:52:57

On Monday 29 December 2003 22:50, Eric Niebler wrote:
> The MFC file afxtempl.h relies on the max macro, which has been
> #undef'ed by config/platform/win32.hpp.  

> error C2668: 'std::max' :
> ambiguous call to overloaded function
> could be 'long std::max(long,long)'
> or 'long double std::max(long double,long double)'

Fix those headers by simply casting to the proper type (i.e. what is on the 
left of the assignment, if I remember that place rightly).
Another alternative would be to provide an overload of max() taking a long and 
a long double.

> It seems extremely unwise to be undef'ing min and max. Evil though they
> are, many Win32 platform headers (and users' headers!) depend on them,
> and there is simply no way to write a template or set of overloads that
> behave exactly as the macros do.

I still rather fix broken headers and not have makros whos args are evaluated 
twice in my programs.

Uli