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Return Value of Functions

This is a discussion on Return Value of Functions within the C and C++ forums, part of the Software Development category; All functions return some value. Does it mean that even printf and scanf which are functions in C return some value? If so what is the value returned by these ...

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#1 (permalink)   07-12-2006

janelyn Contributing Member   Join Date: May 2006 Posts: 66 Thanks: 1 Thanked 5 Times in 4 Posts

Return Value of Functions All functions return some value. Does it mean that even printf and scanf which are functions in C return some value? If so what is the value returned by these functions.

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#2 (permalink)   07-12-2006

timmy Contributing Member   Join Date: May 2006 Posts: 84 Thanks: 0 Thanked 9 Times in 6 Posts

Re: Return Value of Functions Yes. As all functions return value so are these functions. I am not aware about scanf but printf returns the number of characters printed by the printf function. Hope we get to know about the return value of more functions in this discussion.

#3 (permalink)   09-19-2007

n.ashis Junior Member   Join Date: Aug 2007 Location: Bangalore Posts: 15 Thanks: 0 Thanked 4 Times in 3 Posts

Re: Return Value of Functions printf returns the number of characters that it prints, whereas scanf returns the number of format specifiers being passed to it in the format string. Correct me if i am wrong...

#4 (permalink)   09-24-2007

Amit Mittal Junior Member   Join Date: Sep 2007 Location: Bangalore Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts

Re: Return Value of Functions Quote: Originally Posted by janelyn All functions return some value. Does it mean that even printf and scanf which are functions in C return some value? If so what is the value returned by these functions. ya printf and scanf also return values. print return no of character printed successfully or negetive value if an error occured. scanf return no of argument that are inputed or read .

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