Re: c++/2295

[bkoz at gcc dot gnu dot org]

The following reply was made to PR c++/2295; it has been noted by GNATS.

From: bkoz@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org, nobody@gcc.gnu.org,
  schmid@snake.iap.physik.tu-darmstadt.de
Cc:  
Subject: Re: c++/2295
Date: 19 Mar 2001 21:14:14 -0000

 Synopsis: Scope of rand function
 
 State-Changed-From-To: open->analyzed
 State-Changed-By: bkoz
 State-Changed-When: Mon Mar 19 13:14:14 2001
 State-Changed-Why:
     This is actually not a libstd++ failure, and is intstead of name lookup error with g++. Here's a smaller testcase that removes library dependencies:
     
     extern "C" int rand (void) throw ();
     namespace std
     { 
       extern "C" int rand(void); 
     
       template <class _ForwardIter, class _Generator>
       void generate(_ForwardIter __first, _ForwardIter __last, _Generator __gen) 
       {
         for ( ; __first != __last; ++__first)
           *__first = __gen();
       }
     }
     
     using namespace std;
     
     int main()
     {
       int* i;
       int* j;
       generate(i, j, rand);
       return 0;
     }
     
     
     Compiling this with 20010319 g++ gives:
     
     %COMP.sh 2295.cc
     2295.cc: In function `int main()':
     2295.cc:46: no matching function for call to `generate(int*&, int*&, <unknown 
        type>)'
     
     Note the odd <unknown type> bits. EDG can compile this normally.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=2295&database=gcc