What the c++ class pointer size in 64bit machine code blocks compiler

Asked Aug 27 '13 at 09:18

Active Aug 27 '13 at 11:05

Viewed 91 times

class node
{
public:
    int u;
    node* next;
    node() {};
    void setdata(int a) { u = a; };
    void setnext(node* nnext) { next = nnext; };
    int Data() { return u; };
    node* Next() { return next; };
};

I run this now via linux 64bit I found that size of class node is 16bytes ... 4 for int u, 8 for *next.... and remaining 4 bytes unknown, how can i identify or say size for each class elements

edited Aug 27 '13 at 11:05

asked Aug 27 '13 at 09:18

razzaksr

3

May it be that the compiler emits a 32-bit program where pointers are 32 bit? – sharptooth Aug 27 '13 at 09:20
1

check if your compiler is targeting a x64 platform – LZR Aug 27 '13 at 09:21
In my experience, the size of a pointer is the size of `size_t` - with very few exotic exceptions. – Aug 27 '13 at 09:21
1

It would be either cross-compilation into 32bit binary, or you are using sizeof incorrectly. Can you post the sizeof code as well? – Patrik Beck Aug 27 '13 at 09:26

What the c++ class pointer size in 64bit machine code blocks compiler

0 Answers0