RE: c++/9942: Function Overload Resolution calls wrong function o n variable length parameter lists

[Wolfgang Bangerth <bangerth@ticam.utexas.edu>]

The following reply was made to PR c++/9942; it has been noted by GNATS.

From: Wolfgang Bangerth <bangerth@ticam.utexas.edu>
To: Steve Wadsworth <Steve_Wadsworth@portasystems.co.uk>
Cc: "'gcc-bugs@gcc.gnu.org'" <gcc-bugs@gcc.gnu.org>,
   "'gcc-gnats@gcc.gnu.org'" <gcc-gnats@gcc.gnu.org>
Subject: RE: c++/9942: Function Overload Resolution calls wrong function o
 n variable length parameter lists
Date: Wed, 5 Mar 2003 17:03:00 -0600 (CST)

 > Attached is sample code to exhibit this. 
 
 OK, here's a reduced example:
 ------------------------
 #include <stdarg.h>
 
 void f(int, va_list&)  ;   // only declared
 void f(int, ...)     {};   // defined
 
 int main () {
   char *p;
   f(1, p);         // should probably call second f()
 }
 ------------------------
 
 This compiles and links fine with 2.95, but not with 3.2.1. Will have to 
 check on that other system what happens with 3.3 and mainline.
 
 W.
 
 Here's the result:
 tmp/g> ~/bin/gcc-3.2.1/bin/c++ x.cc
 /tmp/ccOD0xO1.o: In function `main':
 /tmp/ccOD0xO1.o(.text+0x25): undefined reference to `f(int, char*&)'
 collect2: ld returned 1 exit status
 
 -------------------------------------------------------------------------
 Wolfgang Bangerth             email:            bangerth@ticam.utexas.edu
                               www: http://www.ticam.utexas.edu/~bangerth/