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Re: [v3 PATCH] Make sure the return value of malloc_allocator::allocate is zero-initialized so that checking it for non-zero works later.

From: Jonathan Wakely <jwakely at redhat dot com>
To: Ville Voutilainen <ville dot voutilainen at gmail dot com>
Cc: libstdc++ <libstdc++ at gcc dot gnu dot org>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Date: Sun, 16 Oct 2016 14:14:19 +0100
Subject: Re: [v3 PATCH] Make sure the return value of malloc_allocator::allocate is zero-initialized so that checking it for non-zero works later.
Authentication-results: sourceware.org; auth=none
References: <CAFk2RUb5+nFNqWquj9K4352XT8NAfsmEHEVF3ovh9nni8R2v-g@mail.gmail.com> <CAFk2RUbGzzMR13qSo4b1EYSwt0dJ2DRwqCp0LSASfCEYM-kJfQ@mail.gmail.com>

On 15/10/16 23:44 +0300, Ville Voutilainen wrote:

On 15 October 2016 at 22:44, Ville Voutilainen
<ville.voutilainen@gmail.com> wrote:

2016-10-15  Ville Voutilainen  <ville.voutilainen@gmail.com>

    Make sure the return value of malloc_allocator::allocate
    is zero-initialized so that checking it for non-zero works
    later.
    * include/ext/malloc_allocator.h (malloc_allocator::allocate):
    Initialize the return value.


A new patch, with small sanity tests added.

2016-10-15  Ville Voutilainen  <ville.voutilainen@gmail.com>

   Make sure the return value of malloc_allocator::allocate
   is zero-initialized so that checking it for non-zero works
   later.
   * include/ext/malloc_allocator.h (malloc_allocator::allocate):
   Initialize the return value.
   * testsuite/ext/malloc_allocator/sanity.cc: New.


Oops, thanks for catching that. OK for trunk.

References:
- [v3 PATCH] Make sure the return value of malloc_allocator::allocate is zero-initialized so that checking it for non-zero works later.
  - From: Ville Voutilainen
- Re: [v3 PATCH] Make sure the return value of malloc_allocator::allocate is zero-initialized so that checking it for non-zero works later.
  - From: Ville Voutilainen

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