C Language MCQ - English
In which header file is the NULL macro defined?
Answer : C
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1) What will be the output of the following C code? #include <stdio.h> int *f();
int main()
{
int *p = f();
printf("%d\n", *p);
}
int *f()
{
int *j = (int*)malloc(sizeof(int));
*j = 10;
return j;
}
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2) Comment on the following pointer declaration. int *ptr, p;
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3) What will be the output of the following C code? #include <stdio.h>
void main()
{
int x = 0;
int *ptr = &x;
printf("%d\n", *ptr);
}
4) What will be the output of the following C code? #include <stdio.h>
int main()
{
int *ptr, a = 10;
ptr = &a;
*ptr += 1;
printf("%d,%d/n", *ptr, a);
}
5) What will be the output of the program ? #include<stdio.h>
int main()
{
int i=3, *j, k;
j = &i;
printf("%d\n", i**j*i+*j);
return 0;
}
