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assigning to variable arguments

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assigning to variable arguments

Subject: assigning to variable arguments
From: Andy Finnell <email@hidden>
Date: Thu, 1 Dec 2005 10:34:48 -0600

Hi all,

I'm converting a project from CodeWarrior to Xcode 2.2/gcc 4. I've run into some code that attempts reorder a variable argument list (for localized string formatting). The basic code is:

va_start(argList, format);

int foo = 4;
va_arg(argList, int) = foo;

gcc doesn't like the last line because va_arg doesn't return an lval. Specifcally its says "invalid lvalue in assignment". Apparently CodeWarrior va_arg returned a reference, which gcc doesn't.

Is there any way to modify a va_list, either in place or build one up dynamically?

Thanks,

    -andy

--
Andy Finnell
Senior Software Architect
Order N Development, LLC
http://www.orderndev.com

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