See memory usage in Visual C++
Author
Could somebody tell me how to see the profile for each data member of the class /methods which we made how many kb/mb it consume system memory in Visual C++?
Thanks
You can use the sizeof operator;
On my PC I get:
4 4 1
int i;class X{};std::cout << sizeof(int) << " " << sizeof(i) << " " << sizeof(X) << std::endl;On my PC I get:
4 4 1
Author
How about like this?
struct X {
Y *pointerY
}
struct Y {
Z *pointerZ
}
what does the sizeof(X) return?
Is it the sizeof(y)*sizeof(z) ?
struct X {
Y *pointerY
}
struct Y {
Z *pointerZ
}
what does the sizeof(X) return?
Is it the sizeof(y)*sizeof(z) ?
Well, on my pc (using VC++2008) an empty class's size is 1
This,
returns 4, the size of the int.
so
struct X {
Y *pointerY
};
will probably return the size of Y.
This,
class X{int i;};returns 4, the size of the int.
so
struct X {
Y *pointerY
};
will probably return the size of Y.
Quote:Original post by edwin2026
How about like this?
struct X {
Y *pointerY
}
struct Y {
Z *pointerZ
}
what does the sizeof(X) return?
Is it the sizeof(y)*sizeof(z) ?
How should VC++ know whether *pointerZ is pointing to valid data or is uninitialized? Therefore, sizeof(X) will just give the size of the struct Y itself, not the size of the data it might point to. In this case, sizeof(X) will probably be 4, one single pointer.
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