C 编译错误指针

Question

嘿，大家好，我的 C 项目中的函数指针出现编译错误。

感谢您的帮助:)

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文件夹结构:

主文件夹: enter image description here

库文件夹: enter image description here

Heder 文件夹:

路径: C-Lib/ header

文件:ShowPointer.h

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代码(Main.c):

#include <stdio.h>
#include "./Headers/ShowPointer.h"

int main(){
    printf("Hej this is written in VIM some C code.\n");
    getchar();

}

代码(ShowPointer.c):

#include <stdio.h>
#include "../Headers/ShowPointer.h"

void ExPointer(int *pPointer, int *pPointerMax){
    for (int i = *pPointer; i<*pPointerMax; i++){
        printf("%d. %d %p\n", i, *pPointerMax-i, pPointerMax);
    }
    getchar();
}

代码(ShowPointer.h):

#ifndef SHOWPOINTER_FILE
#define SHOWPOINTER_FILE

typedef void ExPointer (*)(int , int);

#endif

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编译:我用这段代码编译这个项目:

gcc -o main main.c Lib/ShowAddress.c

错误:编译错误文本(代码)的结果:

In file included from main.c:2:0:
./Headers/ShowPointer.h:4:25: error: expected declaration specifiers or ‘...’ before ‘*’ token
 typedef void ExPointer (*)(int , int);
                         ^
In file included from Lib/ShowAddress.c:2:0:
Lib/../Headers/ShowPointer.h:4:25: error: expected declaration specifiers or ‘...’ before ‘*’ token
 typedef void ExPointer (*)(int , int);

<小时/>

对不起，我的英语不好。

Answer 1

你想要

typedef void (*ExPointer)(int , int);

How to create a typedef for function pointers