When used by itself, this access flag causes a file's contents to be deleted if the file already exists.
A)ios::app
B)ios::in
C)ios::out
D)All of these
E)None of these

Question

Quizplus · Accepted Answer

The access flag that causes a file's contents to be deleted if it already exists is ios::out. The ios::app flag appends data to the end of the file without deleting its contents, and the ios::in flag is used for reading data from a file. Therefore, none of the other options fit the given description.

When Used by Itself, This Access Flag Causes a File's