INTERVIEW QUESTIONS C FUNCTIONS IN C DETAILS

Question: What are returned by printf(), scanf() functions,if they return anything means what are that?

Answer: Return type of printf() and scanf() is integer. scanf() returns the no.of variables used and printf() returns the total no.of bytes.

Return type of printf() and scanf() is integer. scanf() returns the no.of variables used and printf() returns the total no.of bytes.
Source: CoolInterview.com

return type of scanf and printf is int

scanf returns no of valid inputs you are getting inside it
printf returns no of characters as well as formatspecifier inside it Source: CoolInterview.com

both the printf and scanf functions return some value.this can be checked readily by assigning them to a variable.it returns value depending on the variable to which it is assigned Source: CoolInterview.com

printf and scanf are library functios used in "c language".
printf is used to print the o/p on the monitor or display the o/p.
scanf is used to read the input values into adrress of that variable from the user.
printf and scanf returns the values depend on "datatype". Source: CoolInterview.com

sanf and printf are both library functions printf gives the output so it gives and calculate the total number of bytes which must be a integer value.
sanf calculates the total number of valid inputs so it must be a int. Source: CoolInterview.com

printf and scanf are library functios used in "c language".
printf is used to print the o/p on the monitor or display the o/p.
scanf is used to read the input values into adrress of that variable from the user.
printf and scanf returns the values depend on "datatype".

Source: CoolInterview.com

scanf() return the no. of arguments reads sucessfully.

ex-
scanf("%d",&x); is 1
and printf() returns the no. of character to be printed. Source: CoolInterview.com

printf is used to display the values of variables on screen according to its format specifier.
scanf is used to read the values that are provided by user through keyboard and store these values in variables.
printf return the value that it successfully print on screen.
similarly scanf return that value that it read successfully. Source: CoolInterview.com

Both "printf()" and "sacnf()" returns the integer values.It returns no of values used;e.g
main()
{
int i=printf("hello");
printf("String Lengeth = %d",i);
} Source: CoolInterview.com

what is the output of
main()
{
int i;
i=printf("hello");
printf(i);
} Source: CoolInterview.com

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