Wandbox

Ran/Viewed Log

Author

anonymous

about 2 years ago

Language

C++

Compiler

gcc 12.2.0

Options

Warnings

Don't Use Boost

C++17

-pedantic-errors

Raw compiler options

-W

Author

anonymous

about 2 years ago

$ g++ prog.cc -Wall -Wextra -std=c++17 -pedantic-errors -W

In file included from prog.cc:1:
/opt/wandbox/gcc-12.2.0/include/c++/12.2.0/optional: In instantiation of 'class std::optional<std::nullopt_t>':
prog.cc:4:49:   required from here
/opt/wandbox/gcc-12.2.0/include/c++/12.2.0/optional:719:22: error: static assertion failed
  719 |       static_assert(!is_same_v<remove_cv_t<_Tp>, nullopt_t>);
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/wandbox/gcc-12.2.0/include/c++/12.2.0/optional:719:22: note: '!(bool)std::is_same_v<std::nullopt_t, std::nullopt_t>' evaluates to false

Exit Code:

1