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main.cpp
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154 lines (113 loc) · 2.73 KB
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define __ME__ printf("%s\n", __PRETTY_FUNCTION__);
#define __BEGIN__ printf("%s begin\n", __PRETTY_FUNCTION__);
#define __END__ printf("%s end\n", __PRETTY_FUNCTION__);
void ShowParam(char* p, size_t len)
{
__ME__
}
void ShowParam(char** p, size_t row, size_t col)
{
__ME__
for( int r = 0; r < row; r++)
printf("name: %s\n", *(p + r));
}
void ShowParam(char (*p)[4], size_t row)
{
__BEGIN__
for(size_t r = 0; r < row; r++)
printf("name: %s\n", *(p + r));
__END__
}
#if 1
void ShowParam(char p[][3][4], size_t row)
{
__BEGIN__
for (int r = 0; r < row; r++)
for(int i = 0; i < 3; i++)
printf("name: %s\n", *(*(p + r) + i));
printf("name: %c\n", *(*(*(p + 1) + 1) + 1));
__END__
}
#endif
#if 0
void ShowParam(char (*p)[3][4], size_t row)
{
printf("ShowParam(char (*p)[3][4], size_t row)\n");
for (int r = 0; r < row; r++)
for(int i = 0; i < 3; i++)
printf("name: %s\n", *(*(p + r) + i));
printf("name: %c\n", *(*(*(p + 1) + 1) + 1));
}
#endif
void ShowParam(char* p, size_t x, size_t y, size_t z)
{
__BEGIN__
for (int i = 0; i < x * y * z; i++)
printf("name: %c\n", *(p + i));
__END__
}
#if 0
void ShowParam(char (*p)[3][4], size_t row)
{
}
#endif
void ShowParam(char(*p)[4], size_t x, size_t y)
{
__ME__
}
typedef int int_array_t[10]; /* 定义一个类型 */
void
array_int(int_array_t a)
{
size_t len = sizeof(int_array_t) / sizeof(int);
for (int i = 0; i < len; i++) {
*(a + i) = i;
printf("a[%d]: %d\n", i, *(a + i));
}
}
int
main(int argc, char **argv)
{
char name[2][3][4] = {{"123", "456", "789"}, {"abc", "def", "ghi"}};
// &name[0][0] ---> char (*)[4]
char name2[3][4] = {"123", "456", "789"};
char** p = new char*[3];
char (*p1)[3] = new char[2][3];
for (int i = 0; i < 4; i++)
{
*(p + i) = new char[4];
memset(*(p + i), 0, 4);
}
ShowParam(name, 2);
ShowParam((char [2][3][4]){0}, 2); //动态初始化一个数组
ShowParam(&name[0], 2);// &name[0] ---> char (*)[3][4]
ShowParam(&name[0][0], 2) ;// &name[0][0] ---> char (*)[4]
ShowParam(&name[0][0], 2, 3) ;// &name[0][0] ---> char (*)[4]
ShowParam(&name[0][0][0], 2, 3, 4); // char*
ShowParam(name2, 3);
ShowParam(p, 3, 4);
ShowParam(name2, 3, 4);
/* 数组都是地址传递 */
int_array_t ia;
array_int(ia);
for (int i = 0; i < 10; i++) {
*(ia + i) = i;
printf("a[%d]: %d\n", i, *(ia + i));
}
int* pi = (int*)malloc(sizeof(int) * 10);
array_int(pi);
for (int i = 0; i < 10; i++) {
*(pi + i) = i;
printf("a[%d]: %d\n", i, *(pi + i));
}
int_array_t* pa = (int_array_t*)malloc(sizeof *pa);
array_int(*pa);
for (int i = 0; i < 10; i++) {
*(*pa + i) = i;
printf("a[%d]: %d\n", i, *(*pa + i));
}
return 0;
}