#include<iostream> using namespace std; int main(){ int a,b; cin>>a>>b; cout>>(a+b); return 0; } /* Main.cc: In function 'int main()': Main.cc:6:7: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int') cout>>(a+b); ^ Main.cc:6:7: note: candidates are: In file included from /usr/include/c++/4.9/string:53:0, from /usr/include/c++/4.9/bits/locale_classes.h:40, from /usr/include/c++/4.9/bits/ios_base.h:41, from /usr/include/c++/4.9/ios:42, from /usr/include/c++/4.9/ostream:38, from /usr/include/c++/4.9/iostream:39, from Main.cc:1: /usr/include/c++/4.9/bits/basic_string.tcc:996:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&) operator>>(basic_istream<_CharT, _Traits>& __in, ^ /usr/include/c++/4.9/bits/basic_string.tcc:996:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/istream:879:0, from /usr/include/c++/4.9/iostream:40, from Main.cc:1: /usr/include/c++/4.9/bits/istream.tcc:955:5: note: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) ^ /usr/include/c++/4.9/bits/istream.tcc:955:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/istream:879:0, from /usr/include/c++/4.9/iostream:40, from Main.cc:1: /usr/include/c++/4.9/bits/istream.tcc:923:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) ^ /usr/include/c++/4.9/bits/istream.tcc:923:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/iostream:40:0, from Main.cc:1: /usr/include/c++/4.9/istream:727:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&) operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) ^ /usr/include/c++/4.9/istream:727:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/iostream:40:0, from Main.cc:1: /usr/include/c++/4.9/istream:732:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&) operator>>(basic_istream<char, _Traits>& __in, signed char& __c) ^ /usr/include/c++/4.9/istream:732:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/iostream:40:0, from Main.cc:1: /usr/include/c++/4.9/istream:774:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*) operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) ^ /usr/include/c++/4.9/istream:774:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/iostream:40:0, from Main.cc:1: /usr/include/c++/4.9/istream:779:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*) operator>>(basic_istream<char, _Traits>& __in, signed char* __s) ^ /usr/include/c++/4.9/istream:779:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>(a+b); ^ In file included from /usr/include/c++/4.9/iostream:40:0, from Main.cc:1: /usr/include/c++/4.9/istream:872:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) ^ /usr/include/c++/4.9/istream:872:5: note: template argument deduction/substitution failed: Main.cc:6:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>(a+b); ^ */ |
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