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5、通用的二维数组.c
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5、通用的二维数组.c
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#include<stdio.h>
#include<malloc.h>
typedef unsigned char boolean;
typedef int USER_TYPE;
typedef struct MATRIX{
USER_TYPE *data;
int maxRow;
int maxCol;
}MATRIX;
#define TRUE 1
#define FALSE 0
void initMatrix(MATRIX **matrixHead, int maxRow, int maxCol);
void destoryMatrix(MATRIX **matrixHead);
boolean setElementAt(MATRIX matrix, int row, int col, USER_TYPE value);
boolean getElementAt(MATRIX matrix, int row, int col, USER_TYPE *value);
boolean getElementAt(MATRIX matrix, int row, int col, USER_TYPE *value){
if(row < 0 || col < 0 || row >= matrix.maxRow || col >= matrix.maxCol){
return FALSE;
}
*value = matrix.data[row*matrix.maxCol + col];
return TRUE;
}
boolean setElementAt(MATRIX matrix, int row, int col, USER_TYPE value){
if(row < 0 || col < 0 || row >= matrix.maxRow || col >= matrix.maxCol){
return FALSE;
}
matrix.data[row*matrix.maxCol + col] = value;
return TRUE;
}
void destoryMatrix(MATRIX **matrixHead){
if(*matrixHead == NULL){
return;
}
if((*matrixHead)->data != NULL){
free((*matrixHead)->data);
}
free(*matrixHead);
*matrixHead = NULL;
}
void initMatrix(MATRIX **matrixHead, int maxRow, int maxCol){
MATRIX *matrix = NULL;
if(*matrixHead != NULL || maxRow <= 0 || maxCol <= 0){
return;
}
matrix = (MATRIX *)calloc(sizeof(MATRIX), 1);
matrix->maxRow = maxRow;
matrix->maxCol = maxCol;
matrix->data = (USER_TYPE *)calloc(sizeof(USER_TYPE), maxRow * maxCol);
*matrixHead = matrix;
}
void main(void){
MATRIX *matrix = NULL;
int maxRow;
int maxCol;
int value;
printf("请输入二维数组的行、列: ");
scanf("%d%d", &maxRow, &maxCol);
initMatrix(&matrix, maxRow, maxCol);
setElementAt(*matrix, 1, 1, 2); // 用户的做自己返回时检测
getElementAt(*matrix, 1, 1, &value); // 用户的做自己返回时检测
printf("matrix[1][1] = %d\n", value);
destoryMatrix(&matrix);
}