RE: [GD-Windows] variadic macros

[Ivan-Assen I. <as...@ha...>]

> Is there any way to support variadic macros in Visual Studio like gcc
> supports?  If not, how do people write stuff like custom 
> asserts that take variable parameters?

If the variable parameters are ultimately destined to go into a printf-like
function (which I guess is the common case), we do the following:

PRINT(dbg_category)("%d %d", something, something)

dbg_category is on object of a class use to categorize debug printout
messages, e.g. to filter them, to disable them selectively etc.

This expands to something like that:

dbgCategory.Enabled() ? 0 : GlobalSetFileLine(__FILE__, __LINE__) ? 0 : dbgCategory.Print

Where the Print method of the debug categories is variadic and transfers its va_arg to
a real sprintf.