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Re: Cannot convert int (aka NULL) to std::vector<double*>::value_type

From: Jonathan Wakely <jwakely dot gcc at gmail dot com>
To: mmcwilli at uvic dot ca
Cc: GNU GCC <gcc-help at gcc dot gnu dot org>
Date: Tue, 5 Feb 2013 10:15:22 +0000
Subject: Re: Cannot convert int (aka NULL) to std::vector<double*>::value_type
References: <3750c6b001eb00351593aaa7f45d18cf.squirrel@wm3.uvic.ca> <CAH6eHdQ99MR_0CF5GMjEsCknsy7H3xo2vN4XENJWBTRY=RBQtg@mail.gmail.com>

On 5 February 2013 10:09, Jonathan Wakely wrote:
>> Is this a bug in the 4.7.1 compiler or did the compiler change to conform
>> to some standard that does not allow vector's to initialized to NULL.
>
> I don't think it changed in quite some time. It's a very well known
> problem, see http://open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#438,
> but the implementation is supposed to ensure it works.  I can't
> remember if we have an open bug about it still.

Looking into it further, I think we conform to C++ 2003 + DRs and the
workarounds given earlier are necessary.

In C++ 2011 the implementation should accept the code, so we'll have
to fix that.

Follow-Ups:
- Re: Cannot convert int (aka NULL) to std::vector<double*>::value_type
  - From: Jonathan Wakely

References:
- Cannot convert int (aka NULL) to std::vector<double*>::value_type
  - From: mmcwilli
- Re: Cannot convert int (aka NULL) to std::vector<double*>::value_type
  - From: Jonathan Wakely

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