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- Path: engr.sgi.com!shankar
- From: shankar@mti.sgi.com (Shankar Unni)
- Newsgroups: gnu.g++.help,comp.lang.c++,comp.sys.sgi.apps,comp.sys.sgi.misc
- Subject: Re: SGI and C++
- Followup-To: gnu.g++.help,comp.lang.c++,comp.sys.sgi.apps,comp.sys.sgi.misc
- Date: 19 Feb 1996 21:46:04 GMT
- Organization: Silicon Graphics, Inc., Mountain View, CA
- Distribution: world
- Message-ID: <4gar2s$905@fido.asd.sgi.com>
- References: <4f609s$rho@fu-berlin.de> <4f6726$4ch@fido.asd.sgi.com> <4fahih$s13@fu-berlin.de> <4fbhs0$eo3@fido.asd.sgi.com> <4fl2nh$b66@sun20.ccd.bnl.gov> <4ga186$bk2@oban.cc.ic.ac.uk>
- Reply-To: shankar@engr.sgi.com
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-
- Thomas Sippel - Dau (vulture@imperial.ac.uk) wrote:
-
- > Essentially that is because the gcc implementation of templates is along
- > the lines of "proovide the minimum necessary to get it going", while
- > the ATT code (on which the SGI compiler is based) used a more general
- > approach.
-
- Umm, the SGI compiler is NOT ATT-based (at least, not since
- Irix 5.3/Irix 6.0.1).
-
- I assume the original poster meant that the generated code ran slowly, not
- that the compilation itself was slower..
-
- There *is* a known bug that I found recently (for which there won't be a fix
- in Irix 6.2, since we found the problem too late to get into that release - it
- will be fixed in a patch), where if you declare a template member function
- in the following way, it's NOT inlined:
-
- template <class T> class Foo {
- ...
- void memfunc(); /* no inline specification here */
- ...
- };
-
- template <class T> inline Foo<T>::memfunc()
- {
- /* defined as inline, but compiler will fail to inline it */
- }
-
-
- The workaround for this problem is to stick the inline keyword before the
- declaration of the member function inside the template class.
-
- This *may* be the reason for the slowness. In all other respects, there
- should be no difference between template and non-template code.
- --
- Shankar Unni E-Mail: shankar@sgi.com
- Silicon Graphics Inc. Phone: +1-415-933-2072
- URL: http://reality.sgi.com/employees/shankar
-