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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: Ville Voutilainen <ville dot voutilainen at gmail dot com>
To: "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: Sat, 15 Oct 2016 23:44:52 +0300
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>

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.

Attachment: malloc_alloc_bug_2.diff
Description: Text document

Follow-Ups:
- 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

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

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