Wandbox

Ran/Viewed Log

Author

anonymous

over 5 years ago

Language

C++

Compiler

gcc 10.1.0

Options

Warnings

Boost 1.73.0

C++2a(GNU)

no pedantic

Author

anonymous

over 5 years ago

$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-10.1.0/include -std=gnu++2a

prog.cc: In function 'int main()':
prog.cc:18:21: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second:
   18 |     std::cout<<(a + b);
      |                     ^
prog.cc:11:38: note: candidate 1: 'int operator+(const T&, const P&) [with T = A; P = B]'
   11 | template<typename T, typename P> int operator+(const T&, const P&) { return 2; } // Function 2
      |                                      ^~~~~~~~
prog.cc:8:30: note: candidate 2: 'int A::operator+(const T&) const [with T = B]'
    8 |     template<typename T> int operator+(const T&) const { return 1; } // Function 1
      |                              ^~~~~~~~
2

Exit Code:

0