Possible Duplicate:
( POD )freeing memory : is delete[] equal to delete ?
char* pChar = new char[10];
delete pChar; // this should not work but it has same effect as
// delete[], WHY?
// I know this is illegal, but why does it work?
它可以appear产生同样的效果,但效果并非如此。 如果贵国的阵列类型是抽象的数据类型(即一个类别),那么过去9个要素的主子就不会被称作。
因为你 go。 这是没有界定的行为。 无法界定的行为的一种可能性是,即使确实发生了一些坏事,似乎也不会发生任何坏事。 直到以后,你才可能发现。
你们可以指望得到一些原始类型的安全。 http://isocpp.org/wiki/faq/freestore-mgmt#delete-array-built-ins”rel=“nofollow noreferer” https://isocpp.org/wiki/faq/freesshop-mgmt#del-array-built-ins 。
http://em>doesn t。 它只是
它不明确的行为。 由于“此时此刻工作”属于“未界定”一类,因此可以在某些平台上为一些汇编者开展工作。 然而,这还未做。 你们是否试图用像这样的 des子处理一系列物体,看看看谁是谁?
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在微软视频演播室的大多数版本中,这实际上都是正确的。 然而,没有理由这样做,它完全走到你的平台上。
删除的意思是,这是在汇编时间时不知道规模的特殊情形,分配框架可能希望以不同方式处理(并优化删除案例)。
严格地说,delete pointer ToBaseClass 汇编时也不知道数量,但通过虚拟表格解决,汇编者知道,这个类别在汇编时间是多变的。
如果你误用[],那么在更换分配器(发送人、各种束缚器等)的工具以及用户可能使用的习惯分配器方面也可能会遇到问题。
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