Authors:
Walter Savitch ,julia Lobur
Chapter:
I/o Streams As An Introduction To Objects And Classes
Exercise:
Self-test Exercises
Question:20 | ISBN:9780321531346 | Edition: 7
Question
Write the definition for a void function called to_screen. The function
to_screen has one formal parameter called file_stream, which is of
type ifstream. The precondition and postcondition for the function are
as follows:
//Precondition: The stream file_stream has been connected
//to a file with a call to the member function open. The
//file contains a list of integers (and nothing else).
//Postcondition: The numbers in the file connected to
//file_stream have been written to the screen one per line.
//(This function does not close the file.)
Answer
void to_screen(ifstream& file_stream)
{
int next;
while (file_stream >> next)
}