in c printf() returns what [closed]

Answer 1

1. Point your browser to www.google.com;
2. Search "printf c";
3. Almost any result you'll get will tell you:

Return Value

On success, the total number of characters written is returned.
On failure, a negative number is returned.

Was that so difficult?

Answer 2

printf returns:

• On success, the total number of characters written.
• On failure, a negative number.

Answer 3

It returns the number of characters printed. See man fprintf for simple questions like this.

From the man page:

These functions return the number of characters printed (not including the trailing '\0' used to end output to strings) or a negative value if an output error occurs, except for snprintf() and vsnprintf(), which return the number of characters that would have been printed if the n were unlimited (again, not including the final '\0').

Answer 4

The result of "printf" is the number of characters written. If a write error occurs, "printf" returns a negative number. (ANSI standard)

Even wikipedia has a whole article about printf, where you can find the different return values for different languages and times.

Answer 5

Number of characters (not including the trailing \0) printed on success, negative value on failure. see man printf.

Answer 6

Exactly what it says it returns in any decent library reference

On success, the total number of characters written is returned. On failure, a negative number is returned.