c语言模拟实现strstr函数

#include<stdio h="">
#include<windows h="">
const char *x_strstr(const char *str, const char *s)
{
for (int i = 0; str[i] != '\0'; i++)
{
int temp = i;
int j = 0;
while (str[i++] == s[j++])
{
if (sub_str[j] == '\0')
{
return &s[tem];
}
}
i = temp;
}

return NULL;
}
int main()
{
char arr1[]= "1233345acda";
char arr2[] = "23";
printf("%s\n",x_strstr(arr1, arr2));
system("pause");
return 0;

}
</windows></stdio></windows></stdio>