[Octave-bug-tracker] [bug #56728] graphics.h: template argument deduction/substitution failed with std::transform (..., tolower)

[Philip Nienhuis]

URL:
  <https://savannah.gnu.org/bugs/?56728>

                 Summary: graphics.h: template argument deduction/substitution
failed with std::transform (..., tolower)
                 Project: GNU Octave
            Submitted by: philipnienhuis
            Submitted on: Wed 07 Aug 2019 08:00:19 PM CEST
                Category: Libraries
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: Philip Nienhuis
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

While trying to build the of-geometry-4.0.0 dev package (still a release
candidate) I get the error(s) below.
Some 3 weeks ago (before my vacation) geometry-4.0.0 got (cross)built just
fine with then bleeding edge dev Octave.

AFAICS the issue seems to be in graphics.h where an overloaded
std::transform() isn't found:


In file included from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/interpreter.h:41:0,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-bp.h:32,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-cmd.h:32,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-decl.h:33,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-misc.h:29,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/parse.h:37,
                 from polybool_mrf.cc:25:
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/graphics.h:
In member function 'bool base_properties::cmp_caseless_str::operator()(const
caseless_str&, const caseless_str&) const':
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/graphics.h:2629:67:
error: no matching function for call to
'transform(std::__cxx11::basic_string<char>::iterator,
std::__cxx11::basic_string<char>::iterator,
std::__cxx11::basic_string<char>::iterator, <unresolved overloaded function
type>)'
       std::transform (a1.begin (), a1.end (), a1.begin (), tolower);
                                                                   ^
In file included from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/algorithm:62:0,
                 from polygon.h:5,
                 from polybool_mrf.cc:19:
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_algo.h:4295:5:
note: candidate: template<class _IIter, class _OIter, class _UnaryOperation>
_OIter std::transform(_IIter, _IIter, _OIter, _UnaryOperation)
     transform(_InputIterator __first, _InputIterator __last,
     ^~~~~~~~~
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_algo.h:4295:5:
note:   template argument deduction/substitution failed:
In file included from
/home/philip/de[vel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/interpreter.h:41:0,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-bp.h:32,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-cmd.h:32,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-decl.h:33,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/pt-misc.h:29,
                 from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/parse.h:37,
                 from polybool_mrf.cc:25:
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/x86_64-w64-mingw32/include/octave-6.0.0/octave/../octave/graphics.h:2629:67:
note:   couldn't deduce template parameter '_UnaryOperation'
       std::transform (a1.begin (), a1.end (), a1.begin (), tolower);
                                                                   ^
In file included from
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/algorithm:62:0,
                 from polygon.h:5,
                 from polybool_mrf.cc:19:
/home/philip/devel/octdev/mxe/mxe_64b_20190615/usr/lib/gcc/x86_64-w64-mingw32/7.4.0/include/c++/bits/stl_algo.h:4332:5:
note: candidate: template<class _IIter1, class _IIter2, class _OIter, class
_BinaryOperation> _OIter std::transform(_IIter1, _IIter1, _IIter2, _OIter,
_BinaryOperation)
     transform(_InputIterator1 __first1, _InputIterator1 __last1,
     ^~~~~~~~~


While I've hit this when cross-building for Windows, I've set "Operating
System" to Linux as AFAICS it looks like a core header file issue.





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