Wandbox

Ran/Viewed Log

Author

anonymous

over 4 years ago

Language

C++

Compiler

gcc HEAD 11.0.0 20210117 (experimental)

Options

Warnings

Boost 1.73.0

C++2a(GNU)

no pedantic

Author

anonymous

over 4 years ago

$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=gnu++2a

prog.cc: In instantiation of 'void f() [with A i = A{}]':
prog.cc:11:12:   required from here
prog.cc:6:24: error: static assertion failed
    6 |     static_assert(std::is_same_v<decltype(i), A const>);  // #1
      |                   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.cc:6:24: note: 'std::is_same_v<A, const A>' evaluates to false
prog.cc:7:8: error: binding reference of type 'A&' to 'const A' discards qualifiers
    7 |     A& ar = i;                                            // #2
      |        ^~
prog.cc:7:8: warning: unused variable 'ar' [-Wunused-variable]

Exit Code:

1