我在运行时遇到错误“Debug Assertion Failed”,代码如下。我用MVC ++ 2010编译代码,在调试模式下,当我点击错误窗口上的重试时,它将我引导到文件dbgdel.cpp的行
_ASSERTE(_BLOCK_TYPE_IS_VALID(pHead->nBlockUse));
当我评论该行
时delete result;
在代码中,错误消失......
感谢您帮助我们理解这个问题。我可以删除指针结果,new用于使用clone方法创建它 (对不起,我无法发布完整的代码,而且太大了)
感谢您的帮助
/***CODE****/
########
File: DrawShapeBase.cpp
...
...
Base* DrawShapeBase::SetOutput(Base* data)
{
return (data->clone());
}
....
Base* DrawShapeBase::Draw(Base* data){
Base* result = setOutput(data);
...
...
return result;
}
/*##############*/
File: Derived.cpp
...
...
Base* Derived::clone()
{
Base* b = new Derived(*this);
return b;
}
...
...
/*##############*/
File Base.h
public:
Base();
virtual ~Base();
virtual Base* clone(void) = 0;
....
/*##############*/
main.cpp
...
...
Base* data = new Derived();
DrawBase* dr = new DrawShapeBase();
Base* result = dr->Draw(data);
delete data;
delete result;
delete dr;
...