How to return a string from a function to main()?

Question

I have tried the following code but am getting an error:conflicting types for fun.Is there any solution that doesn't require the use of malloc.

#include <stdio.h>
int main()
{
printf("%s",fun());
return 0;
} 

char* fun()
{
static char str[]="Hello";
return str;
}

Answer 1

It is because you have not declared prototype for fun.

#include <stdio.h>
char* fun(void);
int main()
{
   printf("%s",fun());
   return 0;
}

char* fun(void)
{
   static char str[]="Hello";
   return str;
}