Re: Correct use of the ok function in user/tests and kernel/tests

[Jakob Eriksson]

Aren't arguments always evaluated left to right?




Rein Klazes wrote:
> Hi,
>
> 82 cases, most a variation of:
>
> ok( !Foo(), "Foo failed, error %ld\n", GetLastError());
>
> Changelog:
>   dlls/kernel/tests	: change.c, file.c, process.c, 
>       		  thread.c, time.c
>   dlls/user/tests		: clipboard.c, msg.c, text.c win.c
>
> Correct cases where arguments of ok() calls depend on the order
>   in which they are evaluated.

Correct use of the ok function in user/tests and kernel/tests

[Rein Klazes]

On Thu, 23 Dec 2004 17:13:26 +0100, you wrote:
> Aren't arguments always evaluated left to right?

I can not remember the rule in C that say so. There is a rule that
specifies that each argument is evaluated fully before evaluating the
next one, but the order in winch this happens is free to the compiler

Moreover I only do this exercise because on my wine (compiled with gcc
3.4) they were not.

Rein.

Correct use of the ok function in user/tests and kernel/tests

[Lionel Ulmer]

On Thu, Dec 23, 2004 at 09:35:14PM +0100, Rein Klazes wrote:
> I can not remember the rule in C that say so. There is a rule that
> specifies that each argument is evaluated fully before evaluating the
> next one, but the order in winch this happens is free to the compiler

I am pretty sure that the order of evaluation is not fixed because I once
had to fix some bugs in ScummVM because the order of evaluation on the ARM
platform was not the same as the one on X86 (which lead to all sort of crazy
stuff with code like 'foo(pop(), pop());' :-) ).

        Lionel

-- 
		 Lionel Ulmer - http://www.bbrox.org/