Is this a bug?

[Martin Kahlert]

Hi!
I have code similar to this:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void f(const char **x)
{
 while(*x)
    {
     puts(*x);
     x++;
    }
}

int main(int argc,char *argv[])
{
 char **buffer;

 buffer = calloc(3, sizeof(char*));

 buffer[0] = strdup("Hello");
 buffer[1] = strdup("World");

 f(buffer);

 return 0;
}

gcc -Wall -o prog prog.c gives:

t.c: In function `main':
t.c:23: warning: passing arg 1 of `f' from incompatible pointer type
(the warning comes from the missing const)
Is this a bug?

At least it is an inconsistency:

f(const char *buffer)
{
 puts(buffer);
}

int main()
{
 char b[] = "Hello World";
 f(b);
 return 0;
}

works without any warning!

Thanks for any clarification,
Martin.


-- 
The early bird gets the worm. If you want something else for       
breakfast, get up later.