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Re: [PATCH] Add configure flag for operator new (std::nothrow)

From: Martin Sebor <msebor at gmail dot com>
To: Daniel Gutson <daniel dot gutson at tallertechnologies dot com>
Cc: Aurelio Remonda <aurelio dot remonda at tallertechnologies dot com>, libstdc++ at gcc dot gnu dot org, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, daniel dot gutston at tallertechnologies dot com, Jonathan Wakely <jwakely dot gcc at gmail dot com>
Date: Tue, 03 Nov 2015 14:10:30 -0700
Subject: Re: [PATCH] Add configure flag for operator new (std::nothrow)
Authentication-results: sourceware.org; auth=none
References: <1446554133-3090-1-git-send-email-aurelio dot remonda at tallertechnologies dot com> <56391843 dot 1070807 at gmail dot com> <CAF5HaEVeD4G1Mj8GwbpLyZ8V+GWNRAy1=5qbfVHgrZ=GpkbHbg at mail dot gmail dot com>

Besides violating the requirement of the C++ standard, replacing


Could you please point us to the relevant section where this behavior
is enforced? We couldn't find it so far.


The Required behavior of the nothrow operator new reads:

  This nothrow version of operator new returns a pointer obtained
  as if acquired from the (possibly replaced) ordinary version...

The "as if" requirement implies that any observable effects of
"the (possibly replaced) ordinary version" must be preserved.
The repeated calls to the new handler are among such effects.

Martin

Follow-Ups:
- Re: [PATCH] Add configure flag for operator new (std::nothrow)
  - From: Mike Stump

References:
- [PATCH] Add configure flag for operator new (std::nothrow)
  - From: Aurelio Remonda
- Re: [PATCH] Add configure flag for operator new (std::nothrow)
  - From: Martin Sebor
- Re: [PATCH] Add configure flag for operator new (std::nothrow)
  - From: Daniel Gutson

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