The line from the file doesn't corroborate itself.

[courtlanda]

std::fstream * file;
std::string strBuf;

file = new std::fstream;            
file -> open ( "/path/to/file" );

while ( !file -> eof() )
{ 
   getline ( *file, strBuf );
   std::cout << "PREFIX" << strBuf << "POSTFIX" << std::endl;
}

Let's say, "some text" in the file. Result of:

POSTFIXome text

If the length of the prefix and postage is equal, for example:

std::cout << "PREFIX0" << strBuf << "POSTFIX" << std::endl;

♪

POSTFIXsome text

The content of strBuf is then copied in char*, with the same behaviour as char*. Anyway, I don't care what drives out. This variable contains the name of another file (music) to be opened. But it doesn't work out.

[Marcee]

As the user @Mike has said in the comments on the question, the problem is in /r. It's decided:

size_t pos = 0;
while ( ( pos = file.find("\r", pos) ) != std::string::npos )
{
    file.replace(pos, 2, "");
}