在C中将结构作为不兼容的指针类型 [英] Struct as incompatible pointer type in C

问题描述

我创建了一个只有1个成员的结构，我唯一想做的就是:

I have created a struct with only 1 member and the only thing I want to is:

1. 将结构传递给函数updateDispCase
2. 在范围内和范围外更新成员StartTime.

我面临的问题是我收到一个错误从不兼容的指针类型传递updateDispCase的参数".如果我尝试取消注释"//dispCaseAr [iNumber]-> StartTime = 10;"程序崩溃.

The problem I face is that I get a error "Passing argument of updateDispCase from incompatible pointer type". If I try to uncomment "//dispCaseAr[iNumber]->StartTime = 10;" the program crashes.

如何将结构传递给函数以及如何对其进行更新?

How do I pass my struct to the function and how to I update it?

我的代码如下所示:

#include <stdio.h>
#define NROFDISPCASE 4

typedef struct {
int nr;
double StartTime;
} DispCase;

DispCase dispCaseArray[NROFDISPCASE];

//Preprocessor
void updateDispCase(DispCase *dispCaseAr[],int);
//

int main(){
    int i;

    int value1[NROFDISPCASE]={1,2,3,4};                  // Display nr.

    //Initialize DisplayCase
    for(i = 0; i<NROFDISPCASE; i++){
        dispCaseArray[i].StartTime = value1[i];
    }

    updateDispCase(&dispCaseArray,0);
    printf("%f\n",dispCaseArray[0].StartTime);

    return 0;

}

void updateDispCase(DispCase *dispCaseAr[],int iNumber){
    //dispCaseAr[iNumber]->StartTime = 10;
}

推荐答案

我自己解决了这个问题，我认为写出我的问题的答案是一个主意. 我删除了&从函数调用中删除，并从函数中删除了括号[].新代码如下: 我忘了数组永远是指针.

I solved the problem myself and I thought it would be an idea to write the answer to my problem. I removed the & from the function call and removed the brackets [] from the function. The new code is as follows: I forgot an array is always a pointer.

#include <stdio.h>
#define NROFDISPCASE 4

typedef struct {
int nr;
double StartTime;
} DispCase;


//Preprocessor
void updateDispCase(DispCase *dispCaseAr[],int);
//

int main(){
    DispCase dispCaseArray[NROFDISPCASE];
    int i;

    int value1[NROFDISPCASE]={1,2,3,4};                  // Display nr.

    //Initialize DisplayCase
    for(i = 0; i<NROFDISPCASE; i++){
        dispCaseArray[i].StartTime = value1[i];
    }

    updateDispCase(dispCaseArray,0);
    printf("%f\n",dispCaseArray[0].StartTime);

    return 0;

}

void updateDispCase(DispCase *dispCaseAr,int iNumber){
    dispCaseAr[iNumber]->StartTime = 10;
}

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