@rf у кого есть опыт использования BSD систем на десктопе, расскажите про свой опыт, с какими проблемами столкнулись, в чём отличия от использования GNU/Linux?
То чувство, когда ты всего-лишь не правильно поставил стрелочки, а компилятор такой: gg.cpp: In function ‘int main()’: gg.cpp:5:13: error: no match for ‘operator<<’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘int’) 5 | std:: cin << n; | ~~~~~~~~~ ^~ ~ | | | | | int | std::istream {aka std::basic_istream<char>} gg.cpp:5:13: note: candidate: ‘operator<<(int, int)’ <built-in> 5 | std:: cin << n; | ~~~~~~~~~~^~~~ gg.cpp:5:13: note: no known conversion for argument 1 from ‘std::istream’ {aka ‘std::basic_istream<char>’} to ‘int’ In file included from /usr/include/c++/9/string:55, from /usr/include/c++/9/bits/locale_classes.h:40, from /usr/include/c++/9/bits/ios_base.h:41, from /usr/include/c++/9/ios:42, from /usr/include/c++/9/ostream:38, from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/bits/basic_string.h:6419:5: 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, _Alloc>&)’ 6419 | operator<<(basic_ostream<_CharT, _Traits>& __os, | ^~~~~~~~ /usr/include/c++/9/bits/basic_string.h:6419:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/bits/ios_base.h:46, from /usr/include/c++/9/ios:42, from /usr/include/c++/9/ostream:38, from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/system_error:217:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/ostream:506:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)’ 506 | operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) | ^~~~~~~~ /usr/include/c++/9/ostream:506:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:511:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:517:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:523:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:528:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/ostream:548:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)’ 548 | operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s) | ^~~~~~~~ /usr/include/c++/9/ostream:548:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/ostream:702, from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/bits/ostream.tcc:321:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:565:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:578:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:583:5: note: template argument deduction/substitution failed: gg.cpp:5:16: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | std:: cin << n; | ^ In file included from /usr/include/c++/9/iostream:39, from gg.cpp:1: /usr/include/c++/9/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) | ^~~~~~~~ /usr/include/c++/9/ostream:691:5: note: template argument deduction/substitution failed: /usr/include/c++/9/ostream: In substitution of ‘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&) [with _Ostream = std::basic_istream<char>&; _Tp = int]’: gg.cpp:5:16: required from here /usr/include/c++/9/ostream:691:5: error: no type named ‘type’ in ‘struct std::enable_if<false, void>’
То чувство, когда ты всего-лишь не правильно поставил стрелочки, а компилятор такой: gg.cpp: In function ‘int main()’: gg.cpp:5:13: error: no match for ‘operator<<’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘int’) 5 | std:: cin << n; | ~~~~~~~~~ ^~ ~ | | | | | int | std::istream {aka std::basic_istream<char>} gg.cpp:5:13: note: candidate: ‘operator<<(int, int)’ <built-in> 5 | std:: cin << n; | ~~~~~~~~~~^~~~ gg.cpp:5:13: note: no known conversion for argument 1 from ‘std::istream’...
@ArboLeet никогда не чищу, иначе мне лень будет заново набирать команду, которую можно найти поиском по истории zsh :blobcatgoogly: А зачем её чистить, она же и так ограничена N строчками :blobcatthinkingglare: