How can I use a string as a file name?

[GA17]

I am trying to create a file with variable name. In order to do that I use a string, I let the user scan for it, but the problem appears when I try to "fopen", since I am not sure for the syntax in this case.

[weaknessforcats]

fopen needs a C-style string: char array with a \0 terminator.

Use the c_str() method of string:

string name("myfile.txt");
fopen(name.c_str());