Which uses less memory? a) struct astruct { int x; float y; int v;

Which uses less memory?
a)
struct astruct
{
int x;
float y;
int v;
};

b)
union aunion
{
int x;
float v;
};

c)
char array[10];

Question Posted / ramesh.chaluvadi

4 Answers
8492 Views
Quark, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Which uses less memory? a) struct astruct { int x; float y; int v; }; b) union au..

Answer / jaroosh

And the explanation for the above answer is :
union has the size of the biggest type of its member, so
here its size is 4, while structs size is 4 + 4 + 4 = 16,
and arrays size is 1 * 10 = 10.

Is This Answer Correct ?

10 Yes

0 No

Which uses less memory? a) struct astruct { int x; float y; int v; }; b) union au..

Answer / guest

Ans is B)

Is This Answer Correct ?

9 Yes

0 No

Which uses less memory? a) struct astruct { int x; float y; int v; }; b) union au..

Answer / gourav bhatt

Mr Ranjeet u r wron vecause ib ur case too the answer will
be "b" .thats gud that u find misktake in jaroosh example but
the anser is b coz the union has size 4 .

Is This Answer Correct ?

0 Yes

0 No

Which uses less memory? a) struct astruct { int x; float y; int v; }; b) union au..

Answer / ranjeet garodia

Jaroosh u r right while calculating the size...
but if u take size of int as 2 then astruct size will be
2+4+2=8
array = 1*10= 10
so c is correct

if size of int is 4, then
struct size will be 4+4+4= 12
then a is correct.

Is This Answer Correct ?

1 Yes

11 No

Post New Answer

More C++ General Interview Questions

Explain one-definition rule (odr).

0 Answers

Can the operator == be overloaded for comparing two arrays consisting of characters by using string comparison?

0 Answers

Why is it necessary to use a reference in the argument to the copy constructor?

0 Answers

Explain the use of vtable.