How can we check the size of a pointer?

[learning_qt]

I hope to check the allocated memory for one pointer with QT, but which function can we use?

like this:

ClassA *a = new ClassA();
int size = sizeof(a)

ClassA *a = new ClassA();
int size = sizeof(a)

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[Lykurg]

Hi,

int size = sizeof(*a);

int size = sizeof(*a);

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is your friend and normal C++.

Lykurg

[jpn]

There's also QT_POINTER_SIZE.

[aamer4yu]

Size of pointer is usually word size. They just hold addresses, remember ?
The size of class is size of object. sizeof(*a), in ur case