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c++/4842: -Woverloaded-virtual does not work

To: gcc-gnats at gcc dot gnu dot org
Subject: c++/4842: -Woverloaded-virtual does not work
From: Peter Schmid <schmid at snake dot iap dot physik dot tu-darmstadt dot de>
Date: Fri, 9 Nov 2001 15:02:33 +0100


>Number:         4842
>Category:       c++
>Synopsis:       -Woverloaded-virtual does not work
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 09 06:06:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Peter Schmid
>Release:        3.1 20011106 (experimental)
>Organization:
TU Darmstadt
>Environment:
System: Linux kiste 2.4.14 #5 Thu Nov 8 13:35:20 CET 2001 i686 unknown
Architecture: i686
Linux 2.4.14
GNU ld version 2.11.90.0.29
Glibc 2.2.4
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-clocale=gnu --enable-languages=c,c++,f77,objc
>Description:
The example from the gcc info page for -Woverloaded-virtual does not
evoke a warning message when a function declaration hides
virtual functions from a base class in contrast to the documentation
for gcc 3.1 and 3.0.
>How-To-Repeat:
Source code th.C

struct A {
    virtual void f();
};
          
struct B: public A {
    void f(int);
};

Compiling th.C

g++ -v -c th.C -Woverloaded-virtual -W -Wall
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs
Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-clocale=gnu --enable-languages=c,c++,f77,objc
Thread model: posix
gcc version 3.1 20011106 (experimental)
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=1 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -Woverloaded-virtual -W -Wall -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ th.C -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -quiet -dumpbase th.C -Woverloaded-virtual -W -Wall -version -o /tmp/cciJnJ1Z.s
GNU CPP version 3.1 20011106 (experimental) (cpplib) (i386 Linux/ELF)
GNU C++ version 3.1 20011106 (experimental) (i686-pc-linux-gnu)
	compiled by GNU C version 3.1 20011106 (experimental).
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory "/usr/local/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include/g++-v3
 /usr/local/include/g++-v3/i686-pc-linux-gnu
 /usr/local/include/g++-v3/backward
 /usr/local/include
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/include
 /usr/include
End of search list.
 as -V -Qy -o th.o /tmp/cciJnJ1Z.s
GNU assembler version 2.11.90.0.29 (i486-suse-linux) using BFD version 2.11.90.0.29

>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted:

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