二維數(shù)組傳二級(jí)指針錯(cuò)誤解

二維數(shù)組不能作為二級(jí)指針參數(shù)進(jìn)行傳遞，無(wú)法強(qiáng)制轉(zhuǎn)換

void rotate(int** matrix, int matrixSize, int* matrixColSize);

int main()
{
    int matrix[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 16}};
    int matrixSize = 4;
    int matrixColSize = 4;
    
    rotate(matrix, matrixSize, &matrixColSize);
    return 0;
}

編譯會(huì)報(bào)錯(cuò)類(lèi)型不匹配！

二維數(shù)組傳二級(jí)指針正解

可以將二維數(shù)組轉(zhuǎn)換為指針數(shù)組傳參給二級(jí)指針

#include <stdio.h>
#include <stdlib.h>

void rotate(int** matrix, int matrixSize, int* matrixColSize);

int main()
{
    int a[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 16}};
    int *matrix[4] = {a[0], a[1], a[2], a[3]};
    int matrixSize = 4;
    int matrixColSize = 4;
    
    rotate(matrix, matrixSize, &matrixColSize);

    return 0;
}

void rotate(int** matrix, int matrixSize, int* matrixColSize){

    int column = *matrixColSize;
    if (matrix == NULL)
        return;
    for (int loop = 0; loop < matrixSize / 2; loop++) {
        for (int i = loop; i < matrixSize-1-loop; i++) {
            int temp = matrix[loop][i];
            matrix[loop][i] = matrix[matrixSize-i-1][loop];
            matrix[matrixSize-i-1][loop] = matrix[matrixSize-loop-1][matrixSize-i-1];
            matrix[matrixSize-loop-1][matrixSize-i-1] = matrix[i][matrixSize-loop-1];
            matrix[i][matrixSize-loop-1] = temp;

        }
    }
    for (int i = 0; i < matrixSize; i++) {
        for (int j = 0; j < matrixSize; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }
    return;
}