“新的" C ++中的运算符，指针问题 [英] the "new" operator in c++, pointer question

问题描述

愚蠢的问题，但是每当您调用new时，您总会有一个指针吗?

SomeClass *person = new SomeClass();

那是因为您需要一个指针来指向为SomeClass变量人员分配的新内存空间吗?谢谢！

解决方案

如果new成功完成，它将始终返回一个指针(如果未成功完成，将引发异常，并且不返回任何内容). /p>

该指针指向创建的对象，对于数组，则指向该数组第一个元素的指针.

Dumb question, but whenever you call new, do you always have a pointer?

SomeClass *person = new SomeClass();

And is that because you need a pointer to point to that new space of memory that was allocated for the SomeClass variable person? Thanks!

解决方案

If new completes successfully, it always returns a pointer (if it doesn't complete successfully, an exception is thrown, and nothing is returned).

The pointer is to the object that was created, or in the case of an array, a pointer to the first element of the array.

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