istream buffer

int n;
cin >> n;

As the above code, I have declarced an interger variables n.
I try to input the value of n by cin. However, when I try to input a chracter as the input prompt. An error occur. The value of n is not changed.
I know that I can detect the invalid input using the cin.good().... I also try to use the cin.ignore() to delete the invalid character input from istream but fail to do this. Then how can I do to flush the istram so that the character from istream?
matchzAsked:
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ohellCommented:
Looks to me like you have an eof condition. you make sure that
cin.rdstate() & ~eofstate

If the eof is not true, you can flush the stream by cin.tie()->flush()

Hope this helps
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matchzAuthor Commented:
Then can I use cin.flush() ?
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