使用C传递参考数组 [英] Pass array by reference using C

问题描述

是的，我读过这个问题&答案：在c中通过引用传递数组。我有一个类似的问题，并从该问题实现相同的想法。

Yes, I've read this question & answers: pass array by reference in c. I have a similar problem and implemented the same idea from that question.

但是，我仍然得到以下代码的错误：

However, I still get an error from the following code:

#include <iostream>

void FillArray(int** myArray)
{
   free( *myArray ) ;
   * myArray = (int*) malloc(sizeof(int) * 2);

   *myArray[0] = 1;
   *myArray[1] = 2;
}

int main()
{
   int* myArray = NULL;
   FillArray(& myArray);    
   return 0;
}

我在FillArray函数结束后得到以下运行时错误： / p>

I got the following run-time error right after the FillArray function ends:

未处理的异常0x773115de在Program.exe 0xC00000005：访问冲突写入位置0xcccccccccc。

Unhandled exception at 0x773115de in Program.exe 0xC00000005: Access violation writing location 0xcccccccccc.

我使用Visual Studio，打开Visual C ++空项目。和文件名为main.cpp。这是否意味着它是用C ++编译器而不是C编译器编译？如果是这样，我如何打开一个文件，将只编译C编译器？我试着用main.c重命名main.cpp，但仍然有同样的问题。 （我问这个问题，因为我读了一些关于通过引用，并看到它是不同的C和C ++。）

I'm using Visual Studio, opened Visual C++ Empty Project. And the file named main.cpp. Does that mean it's compiled with C++ compiler instead of C compiler? If so, how can I open a file which will be compiled only C compiler? I tried renaming main.cpp with main.c, but still have the same problem. (I'm asking this question, because I read some about "pass by reference" and saw that it's different in C and C++.)

对于这个非常根本的问题

Sorry for this very fundamental question.

我将非常感谢任何帮助，

I will be appreciated for any help,

Sait。

推荐答案

优先级不能像您期望的那样工作。请尝试以下操作：

Precedence is not working as you expect it to be. Try these:

(*myArray)[0] = 1;
(*myArray)[1] = 2;

（注意： iostream 它是C ++。）

(Note: iostream is not C. It's C++.)

这篇关于使用C传递参考数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！