Standard Library Functions MCQs

Given that the value of SHRT_MAX is equal to 32767 and that of SHRT_MIN is equal to -32768, What will be the output of the following C code?

#include<stdio.h>
#include<limits.h>
main()
{
    int d;
    d=SHRT_MAX + SHRT_MIN+1;
    printf("%d",d);
}

Which of the given options is an array type used for holding information?

What will be the output of the following C code?

double x=3,y= - 6;
printf("%lf %lf", fabs(x), fabs(y));

Which among the given macros is defined in the header file locale.h?

To find the maximum value of an object of type unsigned long long int, we use the macro . . . . . . . .

void free(void *ptr) deallocates the memory previously allocated by a call to . . . . . . . . , . . . . . . . . or . . . . . . . .

What is the meaning of the following C code if output is 0?

#include<stdio.h>
#include<time.h>
int main()
{
    struct tm *local;
    time_t t;
    t=time(NULL);
    local=localtime(&t);
    printf("%d",local->tm_isdst);
    return 0;
}

What is the purpose of the given C code?

#include <stdlib.h> 
_Mbsave _Mbxtowc = {0};  
int (mbtowc) (wchar_t *pwc, const char *a, size_t n) 
{
return (-Mbtowc (pwc, s, n, &-Mbxtowc) ) ;
}

What will the following C code do on compilation?

void main () 
{
   char com[50];  
   strcpy( com, "dir" ); 
   system(com); 
}