Compile error when integrating with project on gcc 4.9.2 with c++11 support

[littlepenny88]

Hi,

I am having following compile errors while I am trying to integration my project with valijson by just including the header files.

In file included from valijson/include/valijson/schema_parser.hpp:10:0,
from test_valijson.cpp:10:
valijson/include/valijson/constraints/concrete_constraints.hpp: In member function 'virtual valijson::constraints::Constraint::OwningPointer valijson::constraints::PolyConstraint::clone(valijson::constraints::Constraint::CustomAlloc, valijson::constraints::Constraint::CustomFree) const':
valijson/include/valijson/constraints/concrete_constraints.hpp:920:16: error: cannot bind 'std::unique_ptr<valijson::constraints::Constraint, void ()(void)>' lvalue to 'std::unique_ptr<valijson::constraints::Constraint, void ()(void)>&&'
return ptr;
^
Just wonder if you would have any idea what is happening with the errors.

Thanks

[tristanpenman]

Hi @littlepenny88 have you had any luck resolving this issue yet? My first suggestion would be to use a later version of gcc if possible. 4.9.2 is a very old release, and my understanding is that it is no longer supported.

One thing you could try is changing return ptr to return OwningPtr(ptr.release());. This could lose some exception safety, but might be good enough for your use case.

[tristanpenman]

I'm going to close this issue for now, since gcc 4.9.x is no longer supported.

Feel free to re-open the issue if you think this is something that can be addressed without harming the performance or correctness of the code on more recent compiler releases.