Why do we use cin.ignore()

i could not understand why do we use cin.ignore() and cin.get()!!
as i understand from the tutorials if we write cin.get() this code prevents the writing to show up and disappear but when i merely use get.cin() without cin.ignore it does not work as i wish.


. ...............Please Help.........

Hello,

According to the C++ Library Reference.

ignore():

Code:

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istream&  ignore ( streamsize n = 1, int delim = EOF );

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Extracts characters from input stream and discards them. Extraction ends when n characters have been discarded or when delim is found, whichever comes first. In this last case delim is also extracted.

get(): Extracts a character from the stream and returns its value.


- Stack Overflow

As for the specific instance when you use it, that's because the console window a console application opens vanishes the moment the console app closes. Unless some other app holds it open.
The cin.get() reads a single character from the user and waits for that, thus keeping the application running. Since get() might also just read a character that's waiting in the input buffer, ignore() is first called to make sure there's nothing in the input buffer.

A better way of solving the problem would be to finally make Dev-C++ as smart as Visual C++ and have it open a small wrapper application, which holds the console window open. I just don't get why it still doesn't do that.

A batch file would suffice!

Code:

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rem This file launches an app and keeps the console open.
shift
%0 %1 %2 %3 %4 %5 %6 %7 %8 %9
pause

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