What does exit failure do? (in C++)

Question

We want to read a header and check that the program managed to read it. So we have this code :
if (f_in.fail()) {
cerr<<"error";
f_in.close();
exit(EXIT_FAILURE);
}

What does this last line do?
Thank you!

Answer 1

http://www.sanfoundry.com/c-tutorials-exit-function-used-program

http://www.cplusplus.com/reference/cstdlib/exit

http://en.cppreference.com/w/c/program/exit

Hth, cmiiw

Answer 2

@Lena, You're welcome, glad it helps : )

Answer 3

Okay thank you! 👌😊