高分。。。低能。。。问题~~~

yie_lang 2002-06-24 02:02:34
class AFX_NOVTABLE CCmdTarget : public CObject 中

AFX_NOVTABLE 是什么意思~?
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newhand2000 2002-06-24
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用来禁止构造期间对vptr的调整,使用atl_no_vtbl的类不能在构造函数中调用虚成员函数。
lvxn_sina 2002-06-24
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噢~~~~~~~~

upupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupupup
yie_lang 2002-06-24
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10 分钟后结帐~~
大家多UP
7zkeeper 2002-06-24
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让编译器延迟建立vtable,,在实例化的时候再建立,就是在派生链的末端之前不需要vtable
yie_lang 2002-06-24
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我要是没看MSDN ,我就不来了~~
其实。我是想看看大家对英文的理解~~
每个人的理解都不同的~~
你们却都给我英文的原版~~
呵呵。。。谢谢了~~
不过,分么,就要少给各位了~~
7zkeeper 2002-06-24
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让编译器延迟建立vtable,,在实例化的时候再建立,就是在派生链的末端之前不需要vtable
look__look 2002-06-24
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怎么和msdn一样,都是抄的 !!
pcman1990 2002-06-24
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AFX_NOVTABLE是个宏定义:__declspec(novtable):

novtable
Microsoft and C++ Specific —>

This is a __declspec extended attribute.

This form of _declspec can be applied to any class declaration, but should only be applied to pure interface classes, that is classes that will never be instantiated on their own. The _declspec stops the compiler from generating code to initialize the vfptr in the constructor(s) and destructor of the class. In many cases, this removes the only references to the vtable that are associated with the class and, thus, the linker will remove it. Using this form of _declspec can result in a significant reduction in code size.

pcman1990 2002-06-24
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AFX_NOVTABLE是个宏定义:__declspec(novtable):

novtable
Microsoft and C++ Specific —>

This is a __declspec extended attribute.

This form of _declspec can be applied to any class declaration, but should only be applied to pure interface classes, that is classes that will never be instantiated on their own. The _declspec stops the compiler from generating code to initialize the vfptr in the constructor(s) and destructor of the class. In many cases, this removes the only references to the vtable that are associated with the class and, thus, the linker will remove it. Using this form of _declspec can result in a significant reduction in code size.

pcman1990 2002-06-24
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AFX_NOVTABLE是个宏定义:__declspec(novtable):

novtable
Microsoft and C++ Specific —>

This is a __declspec extended attribute.

This form of _declspec can be applied to any class declaration, but should only be applied to pure interface classes, that is classes that will never be instantiated on their own. The _declspec stops the compiler from generating code to initialize the vfptr in the constructor(s) and destructor of the class. In many cases, this removes the only references to the vtable that are associated with the class and, thus, the linker will remove it. Using this form of _declspec can result in a significant reduction in code size.

freelybird 2002-06-24
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// This macro is used to reduce size requirements of some classes
#ifndef AFX_ALWAYS_VTABLE
#ifndef AFX_NOVTABLE
#if _MSC_VER >= 1100 && !defined(_DEBUG)
#define AFX_NOVTABLE __declspec(novtable)
#else
#define AFX_NOVTABLE
#endif
#endif
#endif
yu_hl 2002-06-24
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novtable
Microsoft and C++ Specific

This is a __declspec extended attribute.

This form of _declspec can be applied to any class declaration, but should only be applied to pure interface classes, that is classes that will never be instantiated on their own. The _declspec stops the compiler from generating code to initialize the vfptr in the constructor(s) and destructor of the class. In many cases, this removes the only references to the vtable that are associated with the class and, thus, the linker will remove it. Using this form of _declspec can result in a significant reduction in code size.

wind_xu 2002-06-24
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不知道!~
solar 2002-06-24
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