（* char）和（char *）有什么区别？ [英] What is the difference between(*char) and (char*) ?

问题描述

您好



我想知道（* char）和<$ c之间有什么区别$ c>（char *），（* float）和（float *）和simillars？



这些代码之间有什么区别：

Hi

I want to know is there any difference between (*char) and (char*) , (*float) and (float*) and simillars?

Also what is then difference between these codes :

int(*p)[3];

和

and

int *p[3];

谢谢！

Thank you !

推荐答案

据我所知（* char），（* float）无效 C 构造。



（char *）和（float *）用于分别转换为指向char的指针和指向float的指针，例如

As far as I know (*char), (*float) are noty valid C constructs.

(char *) and (float *) are used to cast respectively to pointer to char and pointer to float, e.g.

char * pc = (char *) malloc( 100 );
char * pf = (float *) malloc( 100 * sizeof(float));

int（* p）[3]; 声明 p as 指向三个整数数组的指针：

int(*p)[3]; declares p as a pointer to an array of three integers:

int(*p)[3];
int k[3] = {1,-2,0};
p = &k;

int * p [3]; 声明 p as 三个指向整数的指针数组：

int *p[3]; declares p as an array of three pointers to integers:

int *p[3];
int i=5;
int j=7;
p[0] = &i;
p[1] = p[2] = &j;

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