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Re: [patch, fortran] Always return malloc(1) for empty arrays in the library
- From: Janne Blomqvist <blomqvist dot janne at gmail dot com>
- To: Thomas Koenig <tkoenig at netcologne dot de>
- Cc: "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
- Date: Sun, 3 Jul 2011 23:35:36 +0300
- Subject: Re: [patch, fortran] Always return malloc(1) for empty arrays in the library
- References: <4E0A4C94.7030602@netcologne.de> <BANLkTi=Os1y_XFJrjX1T10tU6f5YSXKDsA@mail.gmail.com> <4E0CBBF3.8040809@netcologne.de> <BANLkTinOGzNaUExazASarGPArwtH1k3bqw@mail.gmail.com> <4E0E1269.2070007@netcologne.de>
On Fri, Jul 1, 2011 at 21:31, Thomas Koenig <tkoenig@netcologne.de> wrote:
> Is this better?
Index: runtime/memory.c
===================================================================
--- runtime/memory.c (Revision 175598)
+++ runtime/memory.c (Arbeitskopie)
@@ -54,8 +54,8 @@ get_mem (size_t n)
void *
internal_malloc_size (size_t size)
{
- if (size == 0)
- return NULL;
+ if (unlikely (size <= 0))
+ size = 1;
return get_mem (size);
}
Since size_t is unsigned, just test (size == 0). Otherwise Ok. Thanks
for the patch.
--
Janne Blomqvist