Re: c++/8427: internal error on ambiguous function template

Re: c++/8427: internal error on ambiguous function template

[bangerth]

Synopsis: internal error on ambiguous function template

State-Changed-From-To: open->closed
State-Changed-By: bangerth
State-Changed-When: Mon Nov  4 07:17:42 2002
State-Changed-Why:
    gcc 3.3 now says
    -----------------------------
    home/bangerth> /home/bangerth/bin/gcc-3.3-pre/bin/c++ -c gcc01.cpp -o /dev/null
    gcc01.cpp: In function `int main()':
    gcc01.cpp:8: error: call of overloaded `f(g<2>)' is ambiguous
    gcc01.cpp:3: error: candidates are: void f(g<(i / j)>) [with int i = 4, int j = 2]
    gcc01.cpp:4: error:                 void f(g<j>) [with int i = 4, int j = 2]
    
    The message seems correct to me. I think you're just out
    of luck here, since the language does not provide you with
    a way to disambiguate which function you wanted to call.
    
    Regards
      W.
    
    
    Original code:
    template<int i> struct g {};
    
    template<int i, int j> void f(g<i/j>) { }
    template<int i, int j> void f(g<j>) { }
    
    int main()
    {
      f<4,2>(g<4/2>());
    }
    

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8427

Re: c++/8427: internal error on ambiguous function template

[bangerth]

Synopsis: internal error on ambiguous function template

State-Changed-From-To: feedback->open
State-Changed-By: bangerth
State-Changed-When: Mon Nov  4 07:13:28 2002
State-Changed-Why:
    Attachment provided:
    ---------------------------
    template<int i> struct g {};
    
    template<int i, int j> void f(g<i/j>) { }
    template<int i, int j> void f(g<j>) { }
    
    int main()
    {
      f<4,2>(g<4/2>());
    }

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8427

Re: c++/8427: internal error on ambiguous function template

[Ray Lischner]

The following reply was made to PR c++/8427; it has been noted by GNATS.

From: Ray Lischner <rl@tempest-sw.com>
To: bangerth@dealii.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
   nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: c++/8427: internal error on ambiguous function template
Date: Sat, 2 Nov 2002 07:43:57 -0800

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 On Friday 01 November 2002 03:35 pm, you wrote:
 > Synopsis: internal error on ambiguous function template
 >
 > State-Changed-From-To: open->feedback
 > State-Changed-By: bangerth
 > State-Changed-When: Fri Nov  1 15:35:32 2002
 > State-Changed-Why:
 >     Please send us a testcase according to the Web page
 >     referenced in the compiler error
 >
 > http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&databas
 >e=gcc&pr=8427
 
 Your file attachment feature seems not to be working. Here is the file 
 again.
 -- 
 Ray Lischner, author of C++ in a Nutshell (forthcoming)
 (http://www.tempest-sw.com/cpp/)
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 template<int i> struct g {};
 
 template<int i, int j> void f(g<i/j>) { }
 template<int i, int j> void f(g<j>) { } 
 
 int main()
 {
   f<4,2>(g<4/2>());
 }
 
 
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Re: c++/8427: internal error on ambiguous function template

[bangerth]

Synopsis: internal error on ambiguous function template

State-Changed-From-To: open->feedback
State-Changed-By: bangerth
State-Changed-When: Fri Nov  1 15:35:32 2002
State-Changed-Why:
    Please send us a testcase according to the Web page
    referenced in the compiler error

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8427

c++/8427: internal error on ambiguous function template

[rl]

>Number:         8427
>Category:       c++
>Synopsis:       internal error on ambiguous function template
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          ice-on-illegal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 01 15:26:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Ray Lischner
>Release:        3.2
>Organization:
>Environment:
Linux, Suse 7.2, kernel 2.4.19, SMP, i686
>Description:
g++ gcc01.cpp
gcc01.cpp: In function `int main()':
gcc01.cpp:8: internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:
g++ gcc01.cpp
>Fix:
Segfault only seems to happen with incorrect source code, so work around is to fix the source code.
>Release-Note:
>Audit-Trail:
>Unformatted: