Standard Library Functions MCQs

Which function restores the environment saved by the most recent invocation of the setjmp() macro in the same invocation of the program?

Which function searches an environmenr list that are provided by the host environment?

What will be the output of the following C code if the name entered is "TOM" and time taken to enter this name is 2 seconds?

#include <stdio.h>
#include <time.h>
int main ()
{
	time_t time1,time2;
	char get_input [256];
	double dif_sec;
	time (&time1);
	printf ("Please enter the name of your pet: ");
	gets (get_input);
	time (&time2);
	dif_sec = difftime (time2,time1);
	printf ("%.2f\n", dif_sec );
	return 0;
}

What error occurs if an input argument is outside the domain over which the mathematical function is de?ned?

The maximum value of a signed char is not the same as the maximum value of an unsigned char.

What will be the output of the following C code?

Maximum value of int  =  1000
Maximum value of float = 5000
Maximum value of short int = 327
Minimum value of short int = -328
#include<stdio.h>
#include<limits.h>
#include<float.h>
main()
{
    short int d;
    d=INT_MAX + FLT_MAX;
    printf("%d",d);
}

Which function is used to recombine the fraction and exponent parts of a floating-point value after you have worked on them separately?

What will be the output of the following C code?

#include<stdio.h>
#include<time.h>
main()
{
    struct tm t;
    time_t tc;
    t.tm_year=2017-1900;
    t.tm_mday=25;
    t.tm_mon=5;
    t.tm_hour=1;
    t.tm_min=30;
    t.tm_sec=0;
    t.tm_isdst=0;
    tc=mktime(&t);
    printf(ctime(&tc));
}

Which macro affects the strftime() function?