指向矢量？我应该删除它还是清除它？ [英] pointer to a vector? shall i delete it or clear it?
问题描述
Hello All，
在我的程序中，我使用指向矢量的指针
vector< XYZ> * vptr =新向量< XYZ> ;;
以及XYZ类有一个char *作为其成员之一。我创建了
所有副本XYZ的构造函数，赋值运算符和析构函数（Big
三）。
我的问题是如何释放vptr所拥有的内存？
我应该删除vptr还是
vptr-> Clear（）就足够了？
（在两种情况下都是XYZ的析构函数）对象被称为..）
问候，
Yogesh Joshi
Hello All,
In my program I am using a pointer to a vector
vector<XYZ> * vptr = new vector<XYZ>;
and also the XYZ class has a char* as one of its member.I have created
all the copy constructor, assignment operator and destructor (The Big
Three ) for XYZ.
My question is how to free the memory held by vptr?
shall i do delete vptr or
vptr->Clear() is enough?
(In both the cases the destructor of the XYZ objects are called..)
regards,
Yogesh Joshi
推荐答案
yp*********@indiatimes.com sade：
Hello All，
在我的程序中，我使用指向矢量的指针
矢量< XYZ> * vptr = new vector< XYZ> ;;
并且XYZ类还有一个char *作为其成员之一。我创建了所有的复制构造函数，赋值运算符和析构函数（The对于XYZ来说很大。
我的问题是如何释放vptr所拥有的内存？
我应该删除vptr或
vptr-> Clear（ ）是不够的？
（在两种情况下都会调用XYZ对象的析构函数。）
问候，
Yogesh Joshi
Hello All,
In my program I am using a pointer to a vector
vector<XYZ> * vptr = new vector<XYZ>;
and also the XYZ class has a char* as one of its member.I have created
all the copy constructor, assignment operator and destructor (The Big
Three ) for XYZ.
My question is how to free the memory held by vptr?
shall i do delete vptr or
vptr->Clear() is enough?
(In both the cases the destructor of the XYZ objects are called..)
regards,
Yogesh Joshi
删除vptr;
就足够了。
TB
delete vptr;
will be sufficient.
TB
如果你分配内存，你也应该删除它=>删除vptr。
问候，斯蒂芬
If you allocate memory you also should delete it => delete vptr.
Regards, Stephan
On 2006-01-12 08:47:54 -0500 ， yp*********@indiatimes.com 说：
On 2006-01-12 08:47:54 -0500, yp*********@indiatimes.com said:
Hello All，
在我的程序中，我使用指向矢量的指针
矢量< XYZ> * vptr = new vector< XYZ> ;;
并且XYZ类还有一个char *作为其成员之一。我创建了所有的复制构造函数，赋值运算符和析构函数（The对于XYZ来说很大。
我的问题是如何释放vptr所拥有的内存？
我应该删除vptr或
vptr-> Clear（ ）是不够的？
（在两种情况下都会调用XYZ对象的析构函数。）
Hello All,
In my program I am using a pointer to a vector
vector<XYZ> * vptr = new vector<XYZ>;
and also the XYZ class has a char* as one of its member.I have created
all the copy constructor, assignment operator and destructor (The Big
Three ) for XYZ.
My question is how to free the memory held by vptr?
shall i do delete vptr or
vptr->Clear() is enough?
(In both the cases the destructor of the XYZ objects are called..)
就像任何其他对象一样你已经通过新的操作员分配了，
你应该在完成后删除它：
删除vptr;
销毁载体中包含的对象。
-
Clark S. Cox，III
cl ******* @ gmail.com
Just like any other object that you''ve allocated via the new operator,
you should delete it when you are finished with it:
delete vptr;
calling vptr-clear() will not delete the vector itself; it will merely
destroy the objects contained within the vector.
--
Clark S. Cox, III
cl*******@gmail.com
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