Author
anonymous
over 6 years ago
Language
C++
Compiler
gcc HEAD 9.0.1 20190209 (experimental)
Options
Warnings
Boost 1.69.0
C++17
no pedantic
Author
anonymous
over 6 years ago
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.69.0/gcc-head/include -std=c++17 prog.cc: In function 'int main()':
prog.cc:29:9: error: ambiguous overload for 'operator=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'Proxy')
29 | s = proxy; // Assignment, this line fails to compile <<<<<
| ^~~~~
In file included from /opt/wandbox/gcc-head/include/c++/9.0.1/string:55,
from /opt/wandbox/gcc-head/include/c++/9.0.1/bits/locale_classes.h:40,
from /opt/wandbox/gcc-head/include/c++/9.0.1/bits/ios_base.h:41,
from /opt/wandbox/gcc-head/include/c++/9.0.1/ios:42,
from /opt/wandbox/gcc-head/include/c++/9.0.1/ostream:38,
from /opt/wandbox/gcc-head/include/c++/9.0.1/iostream:39,
from prog.cc:1:
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:665:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
665 | operator=(const basic_string& __str)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:704:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
704 | operator=(const _CharT* __s)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:715:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(_CharT) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
715 | operator=(_CharT __c)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:732:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
732 | operator=(basic_string&& __str)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:795:7: note: candidate: 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(std::initializer_list<_Tp>) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]'
795 | operator=(initializer_list<_CharT> __l)
| ^~~~~~~~
Exit Code:
1