[speex-dev] patch for libspeex
conrad at vergenet.net
Tue Dec 17 21:55:49 PST 2002
On Mon, Dec 16, 2002 at 08:16:05AM +0800, Bernard Blackham wrote:
> On Sun, Dec 15, 2002 at 02:15:51PM -0500, Jean-Marc Valin wrote:
> > I thought that -O3 would inline those functions, but I'll have a closer
> > look... I'm not sure how C inlining works. Does the inlined function
> > need to be in a .h?
> I believe either the .h or the .c or both (both for consistency). It
> does seem an obvious optimisation for gcc to do though. Maybe
> because its in a different source file perhaps? No idea.
a function can only be inlined if gcc sees its source -- this can't
happen for C code if the function only exists in a different .o file.
if you want to make an inline function available to multiple source
files portably, put it in a .h and declare it static __inline__.
you can control the behaviour of inlining by combining it with other
keywords, but for C99 you're limited to static; for a good time read:
> Australian Linux Technical Conference 2003: http://www.linux.conf.au/
oath, see you there :)
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