什么是 uintptr_t 数据类型

What is uintptr_t data type(什么是 uintptr_t 数据类型)

问题描述

什么是uintptr_t，它有什么用途?

What is uintptr_t and what can it be used for?

推荐答案

uintptr_t 是一种能够存储数据指针的无符号整数类型.这通常意味着它与指针的大小相同.

uintptr_t is an unsigned integer type that is capable of storing a data pointer. Which typically means that it's the same size as a pointer.

在 C++11 及更高版本的标准中可选地定义.

需要一个可以保存架构指针类型的整数类型的一个常见原因是对指针执行特定于整数的操作，或者通过将指针的类型提供为整数句柄"来隐藏指针的类型.

A common reason to want an integer type that can hold an architecture's pointer type is to perform integer-specific operations on a pointer, or to obscure the type of a pointer by providing it as an integer "handle".

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