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__forceinline

Started by drslush Jul 21, 2003 at 1:50 PM 8 replies 1.6k views

Original Post

Jul 21, 2003 at 1:50 PM

Can anyone explain to me why MSVC 6 refuses to inline any code? I have some member functions defined inside a class declaration. This should inline them, but it didn''t work. I also tried using __forceinline, but no luck there either. I tried playing with the /Obx options, but the compiler gives me the error: " ignoring unknown option ''/Ob1'' " Can someone point out my problem?

Sneftel

Jul 21, 2003 at 1:55 PM

Post your code. At the very least, post the class declaration, and the file that doesn''t inline the function properly.

drslush

Jul 21, 2003 at 1:59 PM

Any function, any code. It doesn't matter what I do, it doesnt inline anything. Here is an example:


__forceinline void fooBar()
{
	int i = 0;
	i++;
}

int main()
{
	fooBar();
	return 0;
}

[edited by - drslush on July 21, 2003 3:00:15 PM]

glassJAw

Jul 21, 2003 at 1:59 PM

Debug builds have inlining completely disabled.
Check your project properties.

drslush

Jul 21, 2003 at 2:03 PM

It was a release build.... Anyway I found my problem. You need the pro edition or enterprise edition for inlining. That was what I suspected from the start, but it didn''t say anything in the documentation for inline.

Promit

Jul 21, 2003 at 2:19 PM

quote:
Original post by Anonymous Poster
MSVC6 will only inline functions in header files

Not true, AFAIK.

Hazelnuss

Jul 21, 2003 at 2:22 PM

quote:
Original post by drslush
It was a release build.... Anyway I found my problem. You need the pro edition or enterprise edition for inlining. That was what I suspected from the start, but it didn''t say anything in the documentation for inline.

WTF!? Is that true??

drslush

Jul 21, 2003 at 10:48 PM

Yes, its true. Look at the assembly output. Standard edition doesnt do ANY optimiziations.

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