1. What is returned by the function if the space cannot be allocated by the function malloc(), realloc() and calloc()?
2. The following C code results in an error. State whether true or false.
#include<stdio.h>
#include<time.h>
int main()
{
struct tm *local;
time_t t;
t=time(NULL);
local=asctime(localtime(&t));
printf("%d",local->tm_wday);
return 0;
}
#include<stdio.h>
#include<time.h>
int main()
{
struct tm *local;
time_t t;
t=time(NULL);
local=asctime(localtime(&t));
printf("%d",local->tm_wday);
return 0;
}3. RAND_MAX macro is the maximum value returned by the rand function.
4. What will be the output of the following C code?
char word[20 ] = "1.234555 WELCOME";
char *w; double dis;
dis= strtod(word, &w);
printf("The number is %lf\n", dis);
printf("String is |%s|", w);
char word[20 ] = "1.234555 WELCOME";
char *w; double dis;
dis= strtod(word, &w);
printf("The number is %lf\n", dis);
printf("String is |%s|", w);5. Which function returns the arc sine in the range [-pi/2, +pi/2] radians?
6. If the result underflow, the function returns zero.
7. Which of the following header file defines one function longjmp(), and one variable type jmp_buf?
8. The mbstowcs() function is used to return the number of array elements modified, not including a terminating zero code, if any.
9. longjmp() function is the only function defined under the header file setjmp.h?
10. void assert(int expression) when the expression is evaluated to true?
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