From mboxrd@z Thu Jan  1 00:00:00 1970
From: bkoz@gcc.gnu.org
To: bkoz@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org
Subject: Re: libstdc++/2767
Date: Tue, 08 May 2001 15:46:00 -0000
Message-id: <20010508224601.30603.qmail@sourceware.cygnus.com>
X-SW-Source: 2001-05/msg00243.html
List-Id: <gcc-prs.sourceware.org>

The following reply was made to PR libstdc++/2767; it has been noted by GNATS.

From: bkoz@gcc.gnu.org
To: bkoz@gcc.gnu.org, gcc-gnats@gcc.gnu.org, nobody@gcc.gnu.org,
  schmid@snake.iap.physik.tu-darmstadt.de, stephen@bregmasoft.com
Cc:  
Subject: Re: libstdc++/2767
Date: 8 May 2001 22:45:34 -0000

 Synopsis: Problems with the new bits/std_cstring.h header
 
 Responsible-Changed-From-To: unassigned->bkoz
 Responsible-Changed-By: bkoz
 Responsible-Changed-When: Tue May  8 15:45:34 2001
 Responsible-Changed-Why:
     Responsible
 State-Changed-From-To: open->analyzed
 State-Changed-By: bkoz
 State-Changed-When: Tue May  8 15:45:34 2001
 State-Changed-Why:
     Ugh. This can't be fixed without moving to the shadow headers:
     
     
     namespace swamp
     {
       extern "C"
       {
         extern char*
         strchr(const char *__s, int __c);
       }
     }
     
     namespace std
     {
       const char*
       strchr(const char* __s1, int __n)
       { return const_cast<const char*>(swamp::strchr(__s1, __n)); }
     
       char*
       strchr(char* __s1, int __n)
       { return swamp::strchr(const_cast<const char*>(__s1), __n); }
     }
     
     void f(const char* name)
     { 
       using namespace std;
       strchr(name, int('/')); 
     }
     
     This works, as long as you compile with -fno-builtin. 
     
     Regardless, the current implementation is incorrect, as this declaration doesn't exist:
      extern "C" const char* strchr(const char*, int); 
     
     should be
     
      extern "C" char* strchr(const char*, int); 
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=2767&database=gcc