C-Library-Functions Easy Questions and Answers

What is the syntax of ungetc()?

int ungetc(int c, FILE *fp)

What will be the output of the following C code?

#include <stdio.h>
#include <math.h>
    int main()
    {
        unsigned int num = 15;
        printf("%f\n", fabs(num));
        return 0;
    }

15.000000

What will be the output of the following C code?

#include <stdio.h>
    #include <math.h>
    int main()
    {
        int n = 90;
        printf("%f\n", sin(n));
        return 0;
    }

0.893997

function fabs defined math.h header file takes argument of type integer.

False

ungetc() may be used with ________

All of above

C-Library-Functions