C\C++中字符串常量的存储问题
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
char *pstr = "hello";
char sstr[] = "hello";
printf("%d ", strlen(pstr));
printf("%d ", strlen(sstr));
printf("%d\n", strlen("hello"));
printf("%d ", sizeof(pstr));
printf("%d ", sizeof(sstr));
printf("%d\n", sizeof("hello"));
}#include<stdio.h>
#include<stdlib.h>
int main()
{
char str1[] = "hello world";
char str2[] = "hello world";
char* str3 = "hello world";
char* str4 = "hello world";
if(str1 == str2)
printf("str1 and str2 are same.\n");
else
printf("str1 and str2 are not same.\n");
if(str3 == str4)
printf("str3 and str4 are same.\n");
else
printf("str3 and str4 are not same.\n");
}