Member Avatar for Nabs

Hi

Can anyone tell me what isdigit(cin.peek()) means? Is it the same as isdigit(next_char) where next_char is a character variable?

Thx...I'm just a beginner...

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Member Avatar for Narue

isdigit(cin.peek()) is basically the same thing as

char ch;
cin.get(ch);
isdigit(ch);
cin.unget();

It returns the next character on the stream and then tests to see if it's a valid numeric digit without removing the character from the stream.

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