Re: dasrt.cc:509:35: error: call to member function 'vector_value' is ambiguous

[PrasannaKumar Muralidharan]

You are using clang, not gcc. I think gcc is just a short cut to clang in case of xcode version. When I compile octave with clang I do see these lines as warnings in Linux but not errors and the compilation proceeds as usual and the resulting binary works fine.

Hope this helps,
PrasannaKumar

On Saturday, 7 November 2015, Ben Abbott <address@hidden> wrote:
>
>> On Nov 7, 2015, at 8:08 AM, John W. Eaton <address@hidden> wrote:
>>
>> On 11/06/2015 08:09 PM, Ben Abbott wrote:
>>> John,
>>>
>>> I’m seeing the error below. Maybe another MacOS feature?
>>>
>>> Ben
>>>
>>>   CXX      libinterp/corefcn/libinterp_corefcn_libcorefcn_la-dasrt.lo
>>> In file included from libinterp/corefcn/dasrt.cc:38:
>>> In file included from ./libinterp/octave-value/ov-cell.h:38:
>>> ./libinterp/octave-value/ov-base-mat.h:95:8: warning: 'octave_base_matrix<Cell>::assign' hides overloaded virtual function [-Woverloaded-virtual]
>>>   void assign (const octave_value_list& idx, const MT& rhs);
>>>        ^
>>> ./libinterp/octave-value/ov-cell.h:48:22: note: in instantiation of template class 'octave_base_matrix<Cell>' requested here
>>> octave_cell : public octave_base_matrix<Cell>
>>>                      ^
>>> ./libinterp/octave-value/ov-base.h:278:16: note: hidden overloaded virtual function 'octave_base_value::assign' declared here: type mismatch at 1st parameter ('const std::string &'
>>>       (aka 'const basic_string<char, char_traits<char>, allocator<char> > &') vs 'const octave_value_list &')
>>>   virtual void assign (const std::string&, const octave_value&) { }
>>>                ^
>>> In file included from libinterp/corefcn/dasrt.cc:38:
>>> In file included from ./libinterp/octave-value/ov-cell.h:38:
>>> ./libinterp/octave-value/ov-base-mat.h:97:8: warning: 'octave_base_matrix<Cell>::assign' hides overloaded virtual function [-Woverloaded-virtual]
>>>   void assign (const octave_value_list& idx, typename MT::element_type rhs);
>>>        ^
>>> ./libinterp/octave-value/ov-base.h:278:16: note: hidden overloaded virtual function 'octave_base_value::assign' declared here: type mismatch at 1st parameter ('const std::string &'
>>>       (aka 'const basic_string<char, char_traits<char>, allocator<char> > &') vs 'const octave_value_list &')
>>>   virtual void assign (const std::string&, const octave_value&) { }
>>>                ^
>>> libinterp/corefcn/dasrt.cc:509:35: error: call to member function 'vector_value' is ambiguous
>>>   ColumnVector state = args(argp).vector_value ("expecting state vector as argument %d", ++argp);
>>>                        ~~~~~~~~~~~^~~~~~~~~~~~
>>> ./libinterp/octave-value/ov.h:1008:17: note: candidate function
>>>   Array<double> vector_value (bool frc_str_conv = false,
>>>                 ^
>>> ./libinterp/octave-value/ov.h:1011:17: note: candidate function
>>>   Array<double> vector_value (const char *fmt, ...) const;
>>>                 ^
>>> libinterp/corefcn/dasrt.cc:511:40: error: call to member function 'vector_value' is ambiguous
>>>   ColumnVector stateprime = args(argp).vector_value ("expecting time derivative of state vector as argument %d", argp);
>>>                             ~~~~~~~~~~~^~~~~~~~~~~~
>>> ./libinterp/octave-value/ov.h:1008:17: note: candidate function
>>>   Array<double> vector_value (bool frc_str_conv = false,
>>>                 ^
>>> ./libinterp/octave-value/ov.h:1011:17: note: candidate function
>>>   Array<double> vector_value (const char *fmt, ...) const;
>>>                 ^
>>> libinterp/corefcn/dasrt.cc:514:39: error: call to member function 'vector_value' is ambiguous
>>>   ColumnVector out_times = args(argp).vector_value ("expecting output time vector as %s argument %d", argp);
>>>                            ~~~~~~~~~~~^~~~~~~~~~~~
>>> ./libinterp/octave-value/ov.h:1008:17: note: candidate function
>>>   Array<double> vector_value (bool frc_str_conv = false,
>>>                 ^
>>> ./libinterp/octave-value/ov.h:1011:17: note: candidate function
>>>   Array<double> vector_value (const char *fmt, ...) const;
>>>                 ^
>>> libinterp/corefcn/dasrt.cc:525:31: error: call to member function 'vector_value' is ambiguous
>>>       crit_times = args(argp).vector_value ("expecting critical time vector as argument %d", argp);
>>>                    ~~~~~~~~~~~^~~~~~~~~~~~
>>> ./libinterp/octave-value/ov.h:1008:17: note: candidate function
>>>   Array<double> vector_value (bool frc_str_conv = false,
>>>                 ^
>>> ./libinterp/octave-value/ov.h:1011:17: note: candidate function
>>>   Array<double> vector_value (const char *fmt, ...) const;
>>>                 ^
>>> 2 warnings and 4 errors generated.
>>> Makefile:17030: recipe for target 'libinterp/corefcn/libinterp_corefcn_libcorefcn_la-dasrt.lo' failed
>>> make[2]: *** [libinterp/corefcn/libinterp_corefcn_libcorefcn_la-dasrt.lo] Error 1
>>> make[2]: Leaving directory '/Users/bpabbott/Development/mercurial/default/sources'
>>> Makefile:25829: recipe for target 'all-recursive' failed
>>> make[1]: *** [all-recursive] Error 1
>>> make[1]: Leaving directory '/Users/bpabbott/Development/mercurial/default/sources'
>>> Makefile:9910: recipe for target 'all' failed
>>> make: *** [all] Error 2
>>>
>>
>> What compiler and version?  I'm not seeing this message with GCC 5.2.1.  I haven't tried older versions.
>>
>> jwe
>
> It’s an Apple variant.
>
>  gcc --version
> Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
> Apple LLVM version 7.0.0 (clang-700.1.76)
> Target: x86_64-apple-darwin14.5.0
> Thread model: posix
>
> Ben
>
>
>