string filename: ifstream file(filename);
The compilers complains about no match between ifstream file and a string. Do I need to convert filename to something?
Here’s the error:
error: no matching function for call to ‘std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream(std::string&)’ /usr/include/c++/4.4/fstream:454: note: candidates are: std::basic_ifstream<_CharT, _Traits>::basic_ifstream(const char*, std::_Ios_Openmode) [with _CharT = char, _Traits = std::char_traits<char>]
Because the constructor for an
ifstream takes a
const char*, not a
ifstream constructor expects a
const char*, so you need to do
ifstream file(filename.c_str()); to make it work.
in c++-11 it can also be an std::string. So (installing c++-11 and) changing the dialect of you project to c++-11 could also fix the problem.