Standard Library Functions MCQs

The mbstowcs() function is used to return the number of array elements modified, not including a terminating zero code, if any.

longjmp() function is the only function defined under the header file setjmp.h?

void assert(int expression) when the expression is evaluated to true?

What will be the output of the following C code?

#include <stdio.h>
#include <limits.h>
int main() 
{
    printf("The minimum value of LONG = %lf\n", LONG_MIN);
    return 0;
}

What is returned by the function localeconv()?

What will be the output of the following C code if the system time is 4:27 PM?

#include<stdio.h>
#include<time.h>
int main()
{
    struct tm *ptr;
    time_t t;
    char str[100];
    t = time(NULL);
    ptr = localtime(&t);
    strftime(str,100,"%H %p %M minutes",ptr);
    puts(str);
    return 0;
}

Which of the following functions returns a pointer to a string representing the date and time stored in a structure?

Which macro retrieves the next argument in the parameter list of the function with type type?

Which header file should be included if a function has to be defined such that it can accept variable number of arguments?