Eric Fiselier 555330719a Implement LWG 2488 - Make the placeholders constexpr. ...

This patch makes the bind placeholders in std::placeholders both (1) const and
(2) constexpr (See below).

This is technically a breaking change for any code using the placeholders
outside of std::bind and depending on them being non-const. However I don't
think this will break any real world code.

(1) Previously the placeholders were non-const extern globals in all
dialects. This patch changes these extern globals to be const in all dialects.
Since the cv-qualifiers don't participate in name mangling for globals this
is an ABI compatible change.

(2) Make the placeholders constexpr in C++11 and beyond. Although LWG 2488 only
applies to C++17 I don't see any reason not to backport this change.

llvm-svn: 273824

2016-06-26 21:01:34 +00:00

..

func.bind.bind

Mark LWG issue 2545 as complete. Add extra tests

2016-06-02 05:44:14 +00:00

func.bind.isbind

Cleanup <__functional_03>

2015-07-22 04:14:38 +00:00

func.bind.place

Implement LWG 2488 - Make the placeholders constexpr.

2016-06-26 21:01:34 +00:00

nothing_to_do.pass.cpp

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