Borderou de evaluare (job #726674)

Eroare de compilare: main.cpp:6:22: error: no matching function for call to 'std::basic_istream<char>::basic_istream(const char [8])' 6 | istream fin("suma.in"); | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/iostream:40, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/istream:613:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::basic_istream(std::basic_istream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]' 613 | basic_istream(basic_istream&& __rhs) | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/istream:613:37: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_istream<char>&&' 613 | basic_istream(basic_istream&& __rhs) | ~~~~~~~~~~~~~~~~^~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/istream:606:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::basic_istream() [with _CharT = char; _Traits = std::char_traits<char>]' 606 | basic_istream() | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/istream:606:7: note: candidate expects 0 arguments, 1 provided /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/istream:93:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::basic_istream(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]' 93 | basic_istream(__streambuf_type* __sb) | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/istream:93:39: note: no known conversion for argument 1 from 'const char [8]' to 'std::basic_istream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'} 93 | basic_istream(__streambuf_type* __sb) | ~~~~~~~~~~~~~~~~~~^~~~ main.cpp:7:24: error: no matching function for call to 'std::basic_ostream<char>::basic_ostream(const char [9])' 7 | ostream fout("suma.out"); | ^ In file included from /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/iostream:39: /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:393:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream(std::basic_ostream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]' 393 | basic_ostream(basic_ostream&& __rhs) | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:393:37: note: no known conversion for argument 1 from 'const char [9]' to 'std::basic_ostream<char>&&' 393 | basic_ostream(basic_ostream&& __rhs) | ~~~~~~~~~~~~~~~~^~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:389:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream(std::basic_iostream<_CharT, _Traits>&) [with _CharT = char; _Traits = std::char_traits<char>]' 389 | basic_ostream(basic_iostream<_CharT, _Traits>&) { } | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:389:21: note: no known conversion for argument 1 from 'const char [9]' to 'std::basic_iostream<char>&' 389 | basic_ostream(basic_iostream<_CharT, _Traits>&) { } | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:384:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream() [with _CharT = char; _Traits = std::char_traits<char>]' 384 | basic_ostream() | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:384:7: note: candidate expects 0 arguments, 1 provided /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:84:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::basic_ostream(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]' 84 | basic_ostream(__streambuf_type* __sb) | ^~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/g++-v12/ostream:84:39: note: no known conversion for argument 1 from 'const char [9]' to 'std::basic_ostream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'} 84 | basic_ostream(__streambuf_type* __sb) | ~~~~~~~~~~~~~~~~~~^~~~ main.cpp: In function 'int main()': main.cpp:14:9: warning: statement has no effect [-Wunused-value] 14 | s+1;