#include <stdio.h>
#include <string.h>
struct node
{
int a;
char c;
int d[];
};
void size()
{
struct node nade = { 5, 'a', 1,2 };
printf("\n**************************\n");
char *ptr1 = "Hello word";
char ptr2[] = "Hello word";
char ptr3[100] = "Hello word";
printf("sizeof (*ptr1) = %d\n", sizeof(ptr1)); //测量char *ptr的长度
printf("strlen(*ptr1) = %d\n", strlen(ptr1)); //测量字符串的长度
printf("sizeof (ptr2[]) = %d\n", sizeof(ptr2));
printf("strlen(*ptr2[]) = %d\n", strlen(ptr2));
printf("sizeof (ptr3[]) = %d\n", sizeof(ptr3));
printf("strlen(*ptr3[100]) = %d\n", strlen(ptr3));
printf("\n");
printf("sizeof (long) = %d\n", sizeof(int)); //测量int型的长度
printf("sizeof (short) = %d\n", sizeof(short));
printf("sizeof (long) = %d\n", sizeof(long));
printf("sizeof (long long) = %d\n", sizeof(long long));
printf("sizeof (float) = %d\n", sizeof(float));
printf("sizeof (double) = %d\n", sizeof(double));
printf("sizeof (char) = %d\n", sizeof(char));
printf("sizeof (nade) = %d\n", sizeof(nade));
printf("\n**************************\n");
}
int main()
{
size();
return 0;
}
结果如下: