Why doesn't my ifstream object work?

[Ciprian Tomoiag]

Hello. I need to open multiple (text) files one by one and I thought to generate their names and use the streams to read from them.

const char* FIN = FileName.c_str();
ifstream fin(FIN, ios::in | ios::binary );

"FileName" is a string (not char[], string) and is generated manually. To read from file I used the extraction operator >> but it just doesn't read. and in the debugger, at the "watch variables" window it says <incomplete type> for the fin object.

What more should I add?

[horace1]

are you sure that the file opens correctly, e.g. using a try {} catch {} structure and printing any message from the catch?

[Ciprian Tomoiag]

well, I had a little mistake in generating the filename. I forgot to add the extension. I only generated "file1" and I forgot to append ".txt" to it. Sorry for bothering!