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Pointers
- Part II
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[Q001] What
will be the output of the following program
:
int
main()
{
int
val=1234;
int*
ptr=&val;
printf("%d
%d",++val,*ptr);
return(0);
}
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(a)1234 1234
(b)1235
1235
(c)1234 1235
(d)1235
1234
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[Q002] What will be the output of the
following program :
int
main()
{
int
val=1234;
int*
ptr=&val;
printf("%d
%d",val,*ptr++);
return(0);
}
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(a)1234 1234
(b)1235
1235
(c)1234 1235
(d)1235
1234
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[Q003] What will be the output of the
following program :
int
main()
{
int
val=1234;
int
*ptr=&val;
printf("%d
%d",val,++*ptr);
return(0);
}
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(a)1234
1234
(b)1235 1235
(c)1234
1235
(d)1235 1234
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[Q004] What will be the output of the
following program :
int
main()
{
int val=1234;
int
*ptr=&val;
printf("%d %d",val,(*ptr)++);
return(0);
}
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(a)1234 1234
(b)1235
1235
(c)1234 1235
(d)1235
1234
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[Q005] What will be the output of the
following program :
int
main()
{
int val=1234;
int
*ptr=&val;
printf("%d %d",++val,(*(int *)ptr)--);
return(0);
}
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(a)1234
1233
(b)1235 1234
(c)1234
1234
(d)None of these
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[Q006] What will be the output of the
following program :
int
main()
{
int
a=555,*ptr=&a,b=*ptr;
printf("%d %d
%d",++a,--b,*ptr++);
return(0);
}
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(a)Compile-Time
Error
(b)555 554 555
(c)556 554
555
(d)557 554 555
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[Q007] What will be the output of the
following program :
int
main()
{
int a=555,b=*ptr,*ptr=&a;
printf("%d %d %d",++a,--b,*ptr++);
return(0);
}
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(a)Compile-Time
Error
(b)555 554 555
(c)556 554
555
(d)557 554 555
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[Q008] What will be the output of the
following program :
int
main()
{
int
a=555,*ptr=&a,b=*ptr;
printf("%d %d
%d",a,--*&b,*ptr++);
return(0);
}
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(a)Compile-Time
Error
(b)555 554 555
(c)556 554
555
(d)557 554 555
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[Q009] What will be the output of the
following program :
int
main()
{
int a=555,*ptr=&a,b=*ptr=777;
printf("%d
%d",--*&b,*(int
*)&b);
return(0);
}
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(a)Compile-Time
Error
(b)776 777
(c)554
555
(d)None of these
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[Q010] What will be the output of the
following program :
int
main()
{
int
a=5u,*b,**c,***d,****e;
b=&a;
c=&b;
d=&c;
e=&d;
printf("%u %u %u
%u",*b-5,**c-11,***d-6,65535+****e);
return(0);
}
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(a)Compile-Time Error
(b)0
65530 65535 4
(c)0 65530 65535
65539
(d)0 -6 -1 -2
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[Q011] What will be the
output of the following program :
int
main()
{
float
val=5.75;
int
*ptr=&val;
printf("%.2f
%.2f",*(float
*)ptr,val);
return(0);
}
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(a)Compile-Time
Error
(b)5.75 5.75
(c)5.00
5.75
(d)None of these
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[Q012] What will be the output of the
following program :
int
main()
{
int
val=50;
const int
*ptr1=&val;
int const
*ptr2=ptr1;
printf("%d %d
%d",++val,*ptr1,*ptr2);
*(int
*)ptr1=98;
printf("\n%d %d
%d",++val,*ptr1,*ptr2);
return(0);
}
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(a)Compile-Time Error
(b)51 50
50
99 98
98
(c)Run-Time Error
(d)None of
these
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[Q013] What will be the output of the
following program :
int
main()
{
int
val=77;
const int
*ptr1=&val;
int const
*ptr2=ptr1;
printf("%d %d
%d",--val,(*ptr1)++,*ptr2);
return(0);
}
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(a)Compile-Time Error
(b)77 78
77
(c)76 77 77
(d)77 77
77
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[Q014] What will be the output of the
following program :
int
main()
{
int
a=50,b=60;
int* const
ptr1=&a;
printf("%d
%d",--a,(*ptr1)++);
ptr1=&b;
printf("\n%d
%d",++b,(*ptr1)++);
return(0);
}
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(a)Compile-Time
Error
(b)49 50
61
60
(c)50 50
62
60
(d)None of these
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[Q015] What will be the output of the
following program :
int
main()
{
int
a=50;
const int* const
ptr=&a;
printf("%d
%d",*ptr++,(*ptr)++);
return(0);
}
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(a)Compile-Time
Error
(b)51 51
(c)51
50
(d)None of these
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[Q016] What will be the output of the
following program :
int
main()
{
int val=77;
const int const
*ptr=&val;
printf("%d",*ptr);
return(0);
}
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(a)Compile-Time
Error
(b)Run-Time
Error
(c)77
(d)None of
these
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[Q017] What will be the output of the
following program :
int
main()
{
int
a[]={1,2,3,4,5,6};
int
*ptr=a+2;
printf("%d
%d",--*ptr+1,1+*--ptr);
return(0);
}
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(a)Compile-Time
Error
(b)1 2
(c)2 3
(d)1
3
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[Q018] What will be the output of the
following program :
int
main()
{
int
a[]={1,2,3,4,5,6};
int
*ptr=a+2;
printf("%d
%d",*++a,--*ptr);
return(0);
}
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(a)Compile-Time
Error
(b)2 2
(c)3 2
(d)4
2
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[Q019] What will be the output of the
following program :
int
main()
{
int
matrix[2][3]={{1,2,3},{4,5,6}};
printf("%d %d
%d\n",*(*(matrix)),*(*(matrix+1)+2),*(*matrix+1));
printf("%d %d
%d",*(matrix[0]+2),*(matrix[1]+1),*(*(matrix+1)));
return(0);
}
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(a)Compile-Time
Error
(b)1 5 2
6 3
4
(c)1 6 2
3 5
4
(d)1 6 2
3 4
5
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[Q020] What will be the output of the
following program :
int
main()
{
int
(*a)[5];
printf("%d
%d",sizeof(*a),sizeof(a));
return(0);
}
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(a)Compile-Time
Error
(b)2 5
(c)5 2
(d)None
of these
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Solutions for the above
queries.
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