[Bug c++/14912] New: Do not print default template arguments in error messages

["schnetter at aei dot mpg dot de" <gcc-bugzilla at gcc dot gnu dot org>]

Errors or warnings in templated functions often print a ridiculously long type 
name, especially when the STL is involved, as in 
 
/home/eschnett/Calpha/Cactus/configs/einstein-gfortran-debug/build/CarpetRegrid/centre.cc: 
In function `int CarpetRegrid::Centre(constcGH*, constgh<3>&, int, int, int, 
constCarpet::jjvect&, constCarpet::jjvect&, constCarpet::jjvect&, 
constCarpet::jjvect&, 
__gnu_norm::vector<__gnu_norm::vector<__gnu_norm::vector<bbox<int, 3>, 
std::allocator<bbox<int, 3> > >, std::allocator<__gnu_norm::vector<bbox<int, 
3>, std::allocator<bbox<int, 3> > > > >, 
std::allocator<__gnu_norm::vector<__gnu_norm::vector<bbox<int, 3>, 
std::allocator<bbox<int, 3> > >, std::allocator<__gnu_norm::vector<bbox<int, 
3>, std::allocator<bbox<int, 3> > > > > > >&, 
__gnu_norm::vector<__gnu_norm::vector<vect<vect<bool, 2>, 3>, 
std::allocator<vect<vect<bool, 2>, 3> > >, 
std::allocator<__gnu_norm::vector<vect<vect<bool, 2>, 3>, 
std::allocator<vect<vect<bool, 2>, 3> > > > >&, 
__gnu_norm::vector<__gnu_norm::vector<int, std::allocator<int> >, 
std::allocator<__gnu_norm::vector<int, std::allocator<int> > > >&)': 
/home/eschnett/Calpha/Cactus/configs/einstein-gfortran-debug/build/CarpetRegrid/centre.cc:46: 
warning: comparison between signed and unsigned integer expressions 
 
 
 
I never typed in all this "allocator" and "__gnu_norm" stuff.  I assume these 
are default template parameters.  Would it be possible to not print them?  It 
would make the warning message readable. 
 
Oh.  I just see that there is no space after the "const" keywords.  Is that 
intentional?

-- 
           Summary: Do not print default template arguments in error
                    messages
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schnetter at aei dot mpg dot de
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14912