指针声明之间的区别 [英] Differences between pointer declaration

问题描述

这两个声明之间有区别吗?

Is there any differences between these two declarations?

int* a;
int *a;

或者这两个声明是相同的(指向整数的指针)?

Or these two declarations are the same (pointer to an integer)?

推荐答案

它们是完全一样的，但这是我几年前第一次学习C时遇到的一个小难题.*绑定到变量，而不是类型.这意味着

They're exactly the same, but here's a small gotcha I came across when first learning C years ago. The * binds to the variable, not the type. This means that

int* a, b;

将 a 声明为int的指针，将 b 声明为 int 的指针.要将两者都声明为指针，应该这样做.

Declares a as a pointer to int, and b as an int. To declare both as pointers, one should do.

int *a, *b;

这就是为什么我更喜欢在名称旁边放置 * .

This is why I prefer to place the * next to the name.

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