[boost] [release][poly_collection] Permission to merge to release

Subject: [boost] [release][poly_collection] Permission to merge to release
From: Joaquin M López Muñoz (joaquinlopezmunoz_at_[hidden])
Date: 2017-11-22 10:23:15

Hello,

I'm asking for permission to merge the following commit chain into release:

https://github.com/boostorg/poly_collection/commit/3609895bd01e5add5971345a3e7d2d220e654020
https://github.com/boostorg/poly_collection/commit/18b7d88df360001c2c006f021136a95bceacd29b
https://github.com/boostorg/poly_collection/commit/ce7e7aac60747c6fad5e97d2cbc22f814b14d886
https://github.com/boostorg/poly_collection/commit/ab32df47f8811dc7f136a166f3b957a0325fde60
https://github.com/boostorg/poly_collection/commit/df754527917b7be013ce558f8c0286aa7a0cc5b9

Fixes bring compatibility with Clang 3.3 and solve a potential UB 
problem related to CWG 232 and
detected at

http://www.boost.org/development/tests/develop/developer/Marshall-UBSAN-poly_collection-clang-darwin-darwin-ubsan-test_construction-variants_.html

I'm waiting for Marshall-UBSAN to cycle through these but all recently 
updated test runners are
working fine. Clang 3.3 is already verified to work by 
teeks99-02-dc3.3-11-Docker-64on64.

Thank you,

Joaquín M López Muñoz