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From: Paul Brook <paul@codesourcery.com>
Subject: Re: [Qemu-devel] [PATCH] use qemu_malloc and friends consistently
Date: Tue, 2 Jun 2009 21:58:48 +0100
References: <200905290758.11551.jcd@tribudubois.net>
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To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, David Turner <digit@google.com>, Gerd Hoffmann <kraxel@redhat.com>, Jean-Christophe Dubois <jcd@tribudubois.net>

> I think you're afraid of the following case instead:
>
> foo*  ptr;
> ptr =3D QEMU_MEW(bar);   =3D>   compiler will complain that 'ptr' is not =
a bar*
>
>But this is not possible with the first version anyway.

Rubbish. Works perfectly.

cat  test.c <<EOF
#include <stdlib.h>
#define QEMU_NEW(type) (type*)malloc(sizeof(type))
typedef struct { int x; } foo;
typedef struct { double y; } bar;
int main(int argc, char **argv)
{
  foo *ptr =3D QEMU_NEW(bar);
  return 0;
}
EOF
gcc test.c
test.c: In function =E2=80=98main=E2=80=99:
test.c:7: initialization from incompatible pointer type

Paul