I guess this is really more of a question about possibly breaking clients of
dutil, but I think this is worth it. In this specific case, we're getting rid
of what's otherwise an unnecessary function so far as I can tell.
I was able calculate the arguments passed to WcaErrorMessage (which has macro
functions as well), with the existing stipulation that all arguments passed to
it are strings. If only the ANSI standard put some more weight behind variadic
args!
Heath Stewart
Software Design Engineer
Visual Studio, Microsoft
http://blogs.msdn.com/heaths
From: [email protected]
To: [email protected]
Date: Sat, 27 Sep 2014 16:52:17 -0700
Subject: [WiX-devs] LogExitOnFailure question
I'm working on checking in variadic macros to the public fork (these have been
a productivity boost internally - no more having to refactor/edit error
messages and forgetting to change the macro number at the end) but ran across a
set I didn't change before and don't think I'll be able to (safely) now.
LogExitOnFailure(X) is used only twice in the entire wix source tree, and I'm
curious as to why as opposed to LogErrorId/ExitFunction.
This the only one I can't do anything about, it seems, because you can't modify
va_args (I tried out a few ideas with some limited success but it's
runtime-dependent, so not safe/supported).
I wouldn't remove or change these for wix3 (I even leave the old variants like
ExitOnFailure1, but just redirect to ExitOnFailure which uses variadic macros),
but if we're looking at some clean-up in wix4 that would be good (I was
planning on removing all traces of numbered functions in favor of the variadic
ones).
Heath Stewart
Software Design Engineer
Visual Studio, Microsoft
http://blogs.msdn.com/heaths
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