Export (0) Print
Expand All
Expand Minimize
This topic has not yet been rated - Rate this topic

Compiler Warning (level 4) C4435

'class1' : Object layout under /vd2 will change due to virtual base 'class2'

This warning is off by default. See Compiler Warnings That Are Off by Default for more information.

Under the default compile option of /vd1, the derived class does not have a vtordisp field for the indicated virtual base. If /vd2 or #pragma vtordisp(2) is in effect, a vtordisp field will be present, changing the object layout. This can lead to binary compatibility problems if interacting modules are compiled with different vtordisp settings.

The following sample generates C4435.

// C4435.cpp
// compile with: /c /W4
#pragma warning(default : 4435)
class A
{
public:
    virtual ~A() {}
};

class B : public virtual A  // C4435
{};
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft. All rights reserved.