Re: [Boost-users] Ambiguous symbols possibly caused by Boost 1.69.0

Subject: Re: [Boost-users] Ambiguous symbols possibly caused by Boost 1.69.0
From: tim_at_[hidden]
Date: 2019-02-27 09:05:36

Hi Gavin,

Just to be clear, is it just "using namespace boost;" I need to worry about,
or do I also need to strip out entries like "using namespace
boost::filesystem;"?

Best wishes.

Tim Burgess

-----Original Message-----
From: Boost-users <boost-users-bounces_at_[hidden]> On Behalf Of Gavin
Lambert via Boost-users
Sent: 27 February 2019 00:53
To: boost-users_at_[hidden]
Cc: Gavin Lambert <boost_at_[hidden]>
Subject: Re: [Boost-users] Ambiguous symbols possibly caused by Boost 1.69.0

On 27/02/2019 12:04, Tim Burgess wrote:
> I'm getting several instances of the following kind of error when I 
> build my code, which does not use boost::thread, etc., as I use the 
> STD
> versions:
> 
> 1>c:\program files (x86)\microsoft visual
>
studio\2017\community\vc\tools\msvc\14.16.27023\include\condition_variable(1
24): 
> error C2872: 'xtime': ambiguous symbol
> 
> 1>c:\program files (x86)\microsoft visual
> studio\2017\community\vc\tools\msvc\14.16.27023\include\thr\xtimec.h(18):
note: 
> could be 'xtime'
> 
> 1>c:\program files\boost\boost\thread\lock_types.hpp(31): note: or       
> 'boost::xtime'

Make sure you don't have "using namespace boost;" inside any header files
(unless within method scope), and if you have it in source files, ensure it
only appears after all #includes.

(Then also follow this rule for any "using namespace" statements, because
they may eventually bite you similarly.)
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