Why is there no ios::nocreate in linux?

Question

been trying to figure out a way around this.
ios::nocreate throws a std error. is there a header im missing? fstream boesnt include it. anyone else have the same problem??

Answer 1

It's because it's not part of standard C++.

If all you're doing is reading a file, you don't need to include it anyway. ifstream objects won't create the file if it doesn't exist; this is the default behavior already.

Answer 2

iOS::in checks to see if the file is there. she. I add iOS::out or app. that's when it creats a file