Standard Library Functions MCQs

What will be the output of the following C code?

double x=1.8;
printf("%.2lf",floor(x));

Which of the following is not defined under the header file stddef.h?

Which of the following library functions is used to read location dependent information?

The function computes the hyperbolic cosine of x.

What will be the output of the following C code?

double log (double -x);

What will be the output of the following C code? (By date we mean: date, month and year)

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int main()
{
    time_t ct;
    time(&ct);
    printf("%s\n",ctime(&ct));
}

What will be the output of the following C code?

char str[20];
str= "123546"; res= atof(str);
printf("String value = %s, Float value = %f\n", str, res);

The C library function . . . . . . . . function converts the wide character to its multibyte representation.

A domain error occurs if x is negative and y is not an integral value for the function pow(double x, double y).