指针ç的typedef结构 [英] C typedef of pointer to structure

问题描述

我曾经碰到过下面的code：

I had come across the following code:

typedef struct {
        double x;
        double y;
        double z;
} *vector

这是一个有效的类型定义？的code编译并运行良好。我只是好奇，如果这是常见的做法。

Is this a valid type definition? The code compiles and runs fine. I was just curious if this is common practice.

推荐答案

绝对有效。
通常情况下，你可以通过定义两种类型共同充分利用这种方式：

Absolutely valid. Usually, you can take full advantage of this way by defining two types together:

typedef struct
{
 int a;
 int b;
} S1, *S1PTR;

其中S1是一个结构和S1PTR是指向这个结构。

Where S1 is a struct and S1PTR is the pointer to this struct.

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