c: two-dimensional array
/**
* *****************************************************************************
* @file twoDimensional.h
* @brief 二维数组 Pointers and 2-D arrays
* @author geovindu,Geovin Du,涂聚文 ([email protected])
* ide: vscode c11,c17 windows 10
* @date 2023-10-30
* @copyright geovindu 站在巨人的肩膀上 Standing on the Shoulders of Giants
* matrix => Points to base address of two-dimensional array.
Since array decays to pointer.
*(matrix) => Points to first row of two-dimensional array.
*(matrix + 0) => Points to first row of two-dimensional array.
*(matrix + 1) => Points to second row of two-dimensional array.
**matrix => Points to matrix[0][0]
*(*(matrix + 0)) => Points to matrix[0][0]
*(*(matrix + 0) + 0) => Points to matrix[0][0]
*(*matrix + 1) => Points to matrix[0][1]
*(*(matrix + 0) + 1) => Points to matrix[0][1]
*(*(matrix + 2) + 2) => Points to matrix[2][2]
* *****************************************************************************
*/
#ifndef TWODIMENSIONAL_H_
#define TWODIMENSIONAL_H_
#include
#include
#define BUF_LEN 100 // Length of input buffer
#define COUNT 5 // Initial number of strings
/**
* @brief 输入字符排序
*
*/
void stringInputSort();
/**
* @brief
*
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay(const int** arry,int row,int col);
/**
* @brief
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay1(const** arry,int row,int col);
/**
* @brief
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay0(int arry[10][10],int row,int col);
/**
* @brief OK
*
* @param arry 二维数组
* @param intlength 行列共长度
* @return int
*/
int pointDisplay2(int arry[10][10],int intlength);
/**
* @brief
*
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay3(int** arry,int row,int col);
/**
* @brief Ok
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay4(int** arry,int row,int col);
/**
* @brief OK
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay5(int*** arry,int row,int col);
/**
* @brief ok
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay6(int** arry,int row,int col);
/**
* @brief 释放所有堆内存
* @param ps
* @param n
*
*/
void freeMemoryChar(char **ps,size_t n);
/**
* @brief 释放所有堆内存
* @param ps
* @param n
*
*/
void freeMemoryInt(int **ps,size_t n);
#endif /**
* *****************************************************************************
* @file twoDimensional.c
* @brief 二维数组 Pointers and 2-D arrays
* @author geovindu,Geovin Du,涂聚文 ([email protected])
* ide: vscode c11,c17 windows 10
* @date 2023-10-30
* @copyright geovindu 站在巨人的肩膀上 Standing on the Shoulders of Giants
* *****************************************************************************
*/
#include
#include
#include
#include
#include
#include
#include "include/twoDimensional.h"
/**
* @brief 输入字符排序
*
*/
void stringInputSort()
{
char buf[BUF_LEN]; // Input buffer
size_t str_count = 0; // Current string count
size_t capacity = COUNT; // Current maximum number of strings
char **pS = calloc(capacity, sizeof(char*)); // Pointers to strings
char** psTemp = NULL; // Temporary pointer to pointer to char
char* pTemp = NULL; // Temporary pointer to char
size_t str_len = 0; // Length of a string
bool sorted = false; // Indicated when strings are sorted
printf("Enter strings to be sorted, one per line. Press Enter to end:\n");
// Read in all the strings
char *ptr = NULL;
while(true)
{
ptr = fgets(buf, BUF_LEN, stdin);
if(!ptr) // Check for read error
{
printf("Error reading string.\n");
free(pS);
pS = NULL;
return 1;
}
if(*ptr == '\n') break; // Empty line check
if(str_count == capacity)
{
capacity += capacity/4; // Increase capacity by 25%
if(!(psTemp = realloc(pS, capacity))) return 1;
pS = psTemp;
}
str_len = strnlen(buf, BUF_LEN) + 1; //strnlen_s
if(!(pS[str_count] = malloc(str_len))) return 2;
strcpy_s(pS[str_count++], str_len, buf);
}
// Sort the strings in ascending order
while(!sorted)
{
sorted = true;
for(size_t i = 0 ; i < str_count - 1 ; ++i)
{
if(strcmp(pS[i], pS[i + 1]) > 0)
{
sorted = false; // We were out of order so...
pTemp= pS[i]; // swap pointers pS[i]...
pS[i] = pS[i + 1]; // and...
pS[i + 1] = pTemp; // pS[i + 1]
}
}
}
// Output the sorted strings
printf("Your input sorted in ascending sequence is:\n\n");
for(size_t i = 0 ; i < str_count ; ++i)
{
printf("%s", pS[i] );
free(pS[i]); // Release memory for the word
pS[i] = NULL; // Reset the pointer
}
free(pS); // Release the memory for pointers
pS = NULL; // Reset the pointer
}
/**
* @brief 可以
*
* @param arry 二维数组
* @param row 行长度
* @param col 列长度
* @return int
*/
int pointDisplay(const** arry,int row,int col)
{
//在main 中直接使用可以
printf("\n6指针遍历二维数组\n");
int *dup;
//dup= arry[0]; //*(*(arry + 0));//*(arry + 0);//
for (int i = 0; i < row; i++) //sizeof(arry) / sizeof(int)
{
dup= arry[i];
for(int j=0;j 调用：
windows 10:
int main()
{
printf("hello c world \n");
printf("你好，中国\n");
// stringInputSort();
int arrdu[5][4]={
{10,20,30,40},
{50,60,70,80},
{90,100,110,120},
{130,140,150,160},
{170,180,190,200}
};
// 4 列
int dum=4;
//5 行
int dun=5;
for(int i = 0; i window10 or Ubuntu 20.4
#include "include/twoDimensional.h"
int main()
{
printf("hello c world, \n");
printf("你好，中国\n");
//setlocale(LC_ALL,"CN");
//int arrdu[5][4]={10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200};
int arrdu[5][4]={
{10,20,30,40},
{50,60,70,80},
{90,100,110,120},
{130,140,150,160},
{170,180,190,200}
};
//5 行
int dun=5;
// 4 列
int dum=4;
for(int i = 0; i 修改一下内存分配，各系统就都可以用。
//分配内存
//int** pe = (int**)malloc(sizeof(int)*dum);
int** pe =malloc(dum * sizeof(int**));// (int**)malloc(sizeof(int)*dum);
for(int i=0; i输出：
