Eroare de compilare: user.cpp:8:16: error: ‘char exp [100005]’ redeclared as different kind of symbol char exp[100005]; ^ In file included from /usr/include/features.h:357:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/os_defines.h:39, from /usr/include/i386-linux-gnu/c++/4.8/bits/c++config.h:420, from /usr/include/c++/4.8/iostream:38, from user.cpp:1: /usr/include/i386-linux-gnu/bits/mathcalls.h:101:1: error: previous declaration of ‘double exp(double)’ __MATHCALL (exp,, (_Mdouble_ __x)); ^ user.cpp: In function ‘void read()’: user.cpp:11:27: error: no matching function for call to ‘std::basic_ifstream<char>::getline(<unresolved overloaded function type>, int)’ fin.getline(exp,100005); ^ user.cpp:11:27: note: candidates are: In file included from /usr/include/c++/4.8/iostream:40:0, from user.cpp:1: /usr/include/c++/4.8/istream:618:5: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int] basic_istream<char>:: ^ /usr/include/c++/4.8/istream:618:5: note: candidate expects 3 arguments, 2 provided /usr/include/c++/4.8/istream:427:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int] getline(char_type* __s, streamsize __n) ^ /usr/include/c++/4.8/istream:427:7: note: no known conversion for argument 1 from ‘<unresolved overloaded function type>’ to ‘std::basic_istream<char>::char_type* {aka char*}’ user.cpp: In function ‘int parr(int&)’: user.cpp:20:16: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript while(exp[p]!=')') ^ user.cpp:24:17: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript if(exp[p]=='(') ^ user.cpp:31:21: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript if(exp[p]=='[') ^ user.cpp:38:25: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript if(exp[p]=='-') ^ user.cpp:43:28: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript while(exp[p]>='0' && exp[p]<='9') ^ user.cpp:43:43: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript while(exp[p]>='0' && exp[p]<='9') ^ user.cpp:46:31: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript num+=exp[p]-'0'; ^ user.cpp: In function ‘int parp(int&)’: user.cpp:75:16: error: invalid types ‘<unresolved overloaded function type>[int]’ for array subscript