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Subject: Re: /usr/include/c++/v1/map:837:5: error: static_assert failed
 "Allocator::value_type must be same type as value_type"
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From: Dimitry Andric <dim@FreeBSD.org>
In-Reply-To: <e4c2cba6-7643-9032-8304-b2fce04c32b6@bsd.com.br>
Date: Tue, 14 Jun 2016 23:14:49 +0200
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References: <e4c2cba6-7643-9032-8304-b2fce04c32b6@bsd.com.br>
To: =?utf-8?Q?Otac=C3=ADlio?= <otacilio.neto@bsd.com.br>
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On 14 Jun 2016, at 06:05, Otac=C3=ADlio <otacilio.neto@bsd.com.br> =
wrote:
>=20
> I'm getting this error when I try compile the ORB-SLAM2 library. Some =
one can give me a hint about it?
>=20
>=20
> /usr/include/c++/v1/map:837:5: error: static_assert failed =
"Allocator::value_type must be same type as value_type"
>    static_assert((is_same<typename allocator_type::value_type, =
value_type>::value),

Typically, this is because the allocator for std::map must use a const
key, and libc++ now checks for this with a static assertion.

See for example this fix for www/node:
=
https://svnweb.freebsd.org/ports/head/www/node/files/patch-deps_v8_src_com=
piler_instruction.h?view=3Dmarkup&pathrev=3D412412

-Dimitry


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