From: Bob Lied <lied AT lucent DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: printf bug ???
Date: Fri, 05 Jun 1998 15:34:29 -0500
Organization: Lucent Technologies
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References: <35784752 DOT B7BF8C31 AT hamburg DOT netsurf DOT de>
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To: djgpp AT delorie DOT com
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>     printf("%d %d %d", i, i++, i++);
> Using DJGPP I got the output "3 2 1" which is wrong.
> I also compiled this with Visual C++ 5 and the output was "1 1 1".
> Can anyone help me solve this?

The solution is, "Don't do that."  The order of parameter
evaluation is compiler-dependent, and the order of applying
multiple post-increments is compiler-dependent. Depending on
the compiler, you could also get "1 1 2", "1 2 3", or "3 3 3".
Be less clever, it's easier for the compiler and the reader.