Author
anonymous
about 6 years ago
Language
C++
Compiler
gcc HEAD 9.0.1 20190328 (experimental)
Options
Warnings
Boost 1.69.0
C++2a(GNU)
no pedantic
Author
anonymous
about 6 years ago
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.69.0/gcc-head/include -std=gnu++2a prog.cc: In function 'int main()':
prog.cc:15:25: error: no match for 'operator<<' (operand types are 'ostream' and '<unresolved overloaded function type>')
15 | cc << "hello world" << std::endl;
| ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
prog.cc:6:14: note: candidate: 'template<class T> ostream& ostream::operator<<(T&&)'
6 | ostream &operator <<(T &&arg){
| ^~~~~~~~
prog.cc:6:14: note: template argument deduction/substitution failed:
prog.cc:15:33: note: couldn't deduce template parameter 'T'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included from /opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:48,
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/string_view:575:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::basic_string_view<_CharT, _Traits>) [with _CharT = char; _Traits = std::char_traits<char>]'
575 | operator<<(basic_ostream<_CharT, _Traits>& __os,
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/string_view:576:43: note: no known conversion for argument 2 from '<unresolved overloaded function type>' to 'std::basic_string_view<char>'
576 | basic_string_view<_CharT,_Traits> __str)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
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:6412:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6412 | operator<<(basic_ostream<_CharT, _Traits>& __os,
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/basic_string.h:6412:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: couldn't deduce template parameter '_Alloc'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included from /opt/wandbox/gcc-head/include/c++/9.0.1/bits/ios_base.h:46,
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/system_error:217:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::error_code&)'
217 | operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/system_error:217:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'const std::error_code&'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:506:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT) [with _CharT = char; _Traits = std::char_traits<char>]'
506 | operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:506:62: note: no known conversion for argument 2 from '<unresolved overloaded function type>' to 'char'
506 | operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
| ~~~~~~~^~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:511:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)'
511 | operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:511:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'char'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:517:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char)'
517 | operator<<(basic_ostream<char, _Traits>& __out, char __c)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:517:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'char'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:523:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char)'
523 | operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:523:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'signed char'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:528:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char)'
528 | operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:528:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'unsigned char'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:548:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>]'
548 | operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:548:69: note: no known conversion for argument 2 from '<unresolved overloaded function type>' to 'const char*'
548 | operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
| ~~~~~~~~~~~~~~^~~
In file included from /opt/wandbox/gcc-head/include/c++/9.0.1/ostream:702,
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/ostream.tcc:321:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)'
321 | operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/bits/ostream.tcc:321:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'const char*'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:565:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*)'
565 | operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:565:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'const char*'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:578:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*)'
578 | operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:578:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'const signed char*'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:583:5: note: candidate: 'template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*)'
583 | operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:583:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: cannot convert 'std::endl' (type '<unresolved overloaded function type>') to type 'const unsigned char*'
15 | cc << "hello world" << std::endl;
| ^~~~
In file included 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/ostream:691:5: note: candidate: 'template<class _Ostream, class _Tp> typename std::enable_if<std::__and_<std::__not_<std::is_lvalue_reference<_Tp> >, std::__is_convertible_to_basic_ostream<_Ostream>, std::__is_insertable<typename std::__is_convertible_to_basic_ostream<_Tp>::__ostream_type, const _Tp&, void> >::value, typename std::__is_convertible_to_basic_ostream<_Tp>::__ostream_type>::type std::operator<<(_Ostream&&, const _Tp&)'
691 | operator<<(_Ostream&& __os, const _Tp& __x)
| ^~~~~~~~
/opt/wandbox/gcc-head/include/c++/9.0.1/ostream:691:5: note: template argument deduction/substitution failed:
prog.cc:15:33: note: couldn't deduce template parameter '_Tp'
15 | cc << "hello world" << std::endl;
| ^~~~
Exit Code:
1