Article View: gnu.g++.bug
Article #523`const' and space allocation
From: Michael Tiemann
Date: Sat, 21 Oct 1989 20:54
Date: Sat, 21 Oct 1989 20:54
34 lines
1715 bytes
1715 bytes
Date: Tue, 17 Oct 89 12:21:14 -0600
From: grunwald@foobar.colorado.edu (Dirk Grunwald)
To: bug-g++@prep.ai.mit.edu
Subject: static const vs. const
Reply-To: grunwald@foobar.colorado.edu
Office: 6-1 EECR (303) 492-0452
I'm not certain if this is a bug or feature;
before, when I have the file:
----------foo.cc----------
const int notStatic = -1;
static const int isStatic = -1;
--------------------------
compiling & using nm would show that notStatic has space allocated;
this is useful if refer to it in other files as ``extern const int notStatic''.
the current version of g++ doesn't allocate a variable for either from.
if this is the intended action, than I would think that referring to
``extern const int notStatic'' should generate an error.
Dirk Grunwald -- Univ. of Colorado at Boulder (grunwald@foobar.colorado.edu)
I have change GNU C++ so that `const' by itself will not cause space
to be allocated. If you want space allocated, the specifying `static'
will get you space if you take the address of the const thing, and
specifying `extern' will allocate space and make the const thing
public, so that others can use it (for value or address).
Michael
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!arkesden.ebay.sun.com!tiemann From: tiemann@arkesden.ebay.sun.com (Michael Tiemann) Newsgroups: gnu.g++.bug Subject: `const' and space allocation Message-ID: <8910212054.AA09169@arkesden.sun.com> Date: 21 Oct 89 20:54:12 GMT Sender: daemon@tut.cis.ohio-state.edu Reply-To: tiemann@sun.com Distribution: gnu Organization: GNUs Not Usenet Lines: 34