编译错误-数组下标的类型'char [int]'无效 [英] Compile error - Invalid types 'char[int]' for array subscript

问题描述

我正在开发一个执行矩阵数学运算的程序.幸运的是，代码逻辑不是给我错误的原因.

I'm working on a program that does some matrix math. Fortunately the code logic is not what is giving me the errors.

我正在使用以下代码来输出存储在二维数组中的矩阵:

I am using the following code to output a matrix that is stored in a 2-d array:

void ouputMatrix(char arr[], int matrixRows, int matrixColumns) {

for (int a=0; a<matrixRows; a++) {
    for (int i=0; i<matrixColumns; i++) {
        cout << arr[a][i] << " ";
    }
    cout << endl;   
}
cout << endl;
}

但是，当我尝试编译此代码时，会被告知:

However when I try to compile this code, I am told:

在函数'void outputMatrix(char *，int，int)'中:[错误]数组下标的类型'char [int]'无效.

"In function 'void outputMatrix(char*, int, int)': [Error] Invalid types 'char[int]' for array subscript.

错误类型向我提示，我缺少有关c ++数组语法的明显内容或类似内容，但我无法弄清楚.我在做什么错了?

The error type suggests to me that I am missing something obvious with regards to c++ array syntax or something like that but I cannot figure it out. What am I doing wrong?

推荐答案

问题是我试图将多维数组传递给函数，但使用的语法与1-d数组相同.由于数组的大小为100(根据我的问题，这是您不知道的大小，抱歉……)传递它的正确方法是:

The issue was that I was trying to pass a multidimensional array into the function but used the same syntax as I would for a 1-d array. Since the array has a size of 100 (which isn't something you could know based on my question, sorry...) the correct way to pass it is:

void ouputMatrix(char arr[][100], int matrixRows, int matrixColumns);

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