how to open subfolder with fstream in c++ - c++

Question

hello I want to read a file located in a subfolder of my program.I succeeded to read the file in the mainfolder of my program.But i cant read the file in a subfolder.
I tried to add a new string named subdir = "/*/" and do like this to get the subfolder but the program refused to take the new paths with my string subdir.Does anyone has a clue on how to do it ? I am running out of ideas lool.
char resulta[ MAX_PATH];
DWORD flicksa = GetModuleFileName(NULL,resulta,MAX_PATH);
_chdir(std::string(resulta,GetCurrentDirectory(flicksa,resulta)).c_str());
std::string path = "/Users/Aymann/Desktop/arraysort/2CPP-REVISIONS/Supcount/";
std::string searchPattern = "/*.cpp";
std::string fullSearchPath = path + searchPattern;
WIN32_FIND_DATA FindData;
HANDLE hFind;
hFind = FindFirstFile( fullSearchPath.c_str(), &FindData );
if( hFind == INVALID_HANDLE_VALUE )
{
cout << "Error searching directory\n";
return -1;
}
do
{
char c;
string filePath = path + FindData.cFileName;
ifstream in( filePath.c_str() );
if( in.is_open() )
{in.get(c);
while (in) {
while (in && c != '\n') {
in.get(c);
}
_rowcount = _rowcount + 1;
in.get(c);
} // do stuff with the file here
}
else
{
cout << "Problem opening file " << FindData.cFileName << "\n";
}
}
while( FindNextFile(hFind, &FindData) > 0 );
if( GetLastError() != ERROR_NO_MORE_FILES )
{
cout << "Something went wrong during searching\n";
}

Answer 1

You cannot pass wildcards to fstream.
Solution: descent folders, open files.
See glob(), opendir(), readdir(), closedir().