lkml.org 
[lkml]   [2007]   [Aug]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [RFC PATCH] type safe allocator
    On Wed, Aug 01, 2007 at 11:06:46AM +0200, Miklos Szeredi wrote:
    > I wonder why we don't have type safe object allocators a-la new() in
    > C++ or g_new() in glib?
    >
    > fooptr = k_new(struct foo, GFP_KERNEL);
    >
    > is nicer and more descriptive than
    >
    > fooptr = kmalloc(sizeof(*fooptr), GFP_KERNEL);
    >...

    But it's much more likely to break when someone converts fooptr to a
    different struct.

    It might not be a common case but it sometimes happens - and your type
    safe variant introduces the possibility for really nasty bugs.

    cu
    Adrian

    --

    "Is there not promise of rain?" Ling Tan asked suddenly out
    of the darkness. There had been need of rain for many days.
    "Only a promise," Lao Er said.
    Pearl S. Buck - Dragon Seed

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-08-01 11:31    [W:0.019 / U:32.308 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site