Ext3 users - Apr 2008 - [ext3grep] Re: Error compiling on Cent OS 4

On Mon, Apr 07, 2008 at 12:11:18PM -0300, Ranieri Oliveira
wrote:
> /usr/include/ext2fs/bitops.h:440: error: invalid conversion from `unsigned
> char*' to `char*'
What is on line 440?

Please keep ext3-users at redhat.com in the CC.

-- 
Carlo Wood <carlo at alinoe.com>

437 _INLINE_ int ext2fs_find_first_bit_set(void * addr, unsigned size)
    439 {
    440         char    *cp = (unsigned char *) addr;
    441         int     res = 0, d0;
    442
    443         if (!size)
    444                 return 0;
    445
    446         while ((size > res) && (*cp == 0)) {
    447                 cp++;
    448                 res += 8;
    449         }
    450         d0 = ffs(*cp);
    451         if (d0 == 0)
    452                 return size;
    453
    454         return res + d0 - 1;
    455 }


On Mon, Apr 7, 2008 at 4:54 PM, Carlo Wood <carlo at alinoe.com> wrote:
>
> On Mon, Apr 07, 2008 at 12:11:18PM -0300, Ranieri Oliveira wrote:
> > /usr/include/ext2fs/bitops.h:440: error: invalid conversion from
> `unsigned
> > char*' to `char*'
>
> What is on line 440?
>
> Please keep ext3-users at redhat.com in the CC.
>
> --
> Carlo Wood <carlo at alinoe.com>
>
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On Mon, Apr 07, 2008 at 05:29:46PM -0300, Ranieri Oliveira
wrote:
>     437 _INLINE_ int ext2fs_find_first_bit_set(void * addr, unsigned size)
>     439 {
>     440         char    *cp = (unsigned char *) addr;
>     441         int     res = 0, d0;
>     442
>     443         if (!size)
>     444                 return 0;
>     445
>     446         while ((size > res) && (*cp == 0)) {
>     447                 cp++;
>     448                 res += 8;
>     449         }
>     450         d0 = ffs(*cp);
>     451         if (d0 == 0)
>     452                 return size;
>     453
>     454         return res + d0 - 1;
>     455 }
That is an error in ext2progs.
You can workaround the problem by changing

    char    *cp = (unsigned char *) addr;

into

    char    *cp = (char *) addr;

I'd think that better is to upgrade your ext2progs
devel package. The current version has this right.

-- 
Carlo Wood <carlo at alinoe.com>