Wandbox

Ran/Viewed Log

Author

anonymous

about 6 years ago

Language

C++

Compiler

gcc HEAD 10.0.0 20190605 (experimental)

Options

Warnings

Boost 1.70.0

C++2a(GNU)

no pedantic

Author

anonymous

about 6 years ago

$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.70.0/gcc-head/include -std=gnu++2a

prog.cc: In function 'int main()':
prog.cc:12:19: error: 'x' declared as reference but not initialized
   12 |     decltype((a)) x; // what is the type of x?
      |                   ^
prog.cc:13:19: error: 'y' declared as reference but not initialized
   13 |     decltype((b)) y; // what is the type of y?
      |                   ^
prog.cc:14:19: error: 'z' declared as reference but not initialized
   14 |     decltype((c)) z; // what is the type of z?
      |                   ^
prog.cc:16:21: error: aggregate 'TD<int&> td1' has incomplete type and cannot be defined
   16 |     TD<decltype(x)> td1;
      |                     ^~~
prog.cc:17:21: error: aggregate 'TD<int&> td2' has incomplete type and cannot be defined
   17 |     TD<decltype(y)> td2;
      |                     ^~~
prog.cc:18:21: error: aggregate 'TD<int&> td3' has incomplete type and cannot be defined
   18 |     TD<decltype(z)> td3;
      |                     ^~~

Exit Code:

1