Question

The printf() function returns which value when an error occurs

Answer 1

printf() function returns value according to used formula but when error occurs it returns negative value.

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Answer 2

Ques. The printf() function retunes which value when an error occurs

(A) Positive value

(B) Zero

(C) Negative value

(D) None of these

Answer:

The correct answer is option (C) Negative value.

Explanation:

• The Printf() function prints "character," "string," "float," "integer," "octal," and "hexadecimal" data on the output screen.
• On the standard output device, it is used to show messages as well as values (monitor).
• The total number of printed characters is returned by printf as an integer value.
• When an error occurs the printf() function returns a negative value.
• The printf() function generates a formatted string and outputs it to the standard output.
• This string can display formatted variables and special control characters like new lines, backspaces, and tab spaces, as well as special control characters like new lines, backspaces, and tab spaces.

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