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[PATCH. libstdc++] Use the correct C++14 __cplusplus value (201402L). Added C++1z to the preprocessor.

From: Ed Smith-Rowland <3dw4rd at verizon dot net>
To: "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Sat, 23 Aug 2014 18:37:13 -0400
Subject: [PATCH. libstdc++] Use the correct C++14 __cplusplus value (201402L). Added C++1z to the preprocessor.
Authentication-results: sourceware.org; auth=none

With revision 214400 we have the C++14 value of __cplusplus set to thecorrect value of 201402L (from 201300L).

We should use this in the std lib headers.  This patch does this.

Also, we've set C++14 value of __cplusplus to 201500L so we can startadding post-C++14 library bits with

#if __cplusplus > 201402L
...
#endif

Built and tested clean on x86_64-linux.

OK?

Attachment: CL_cxx14
Description: Text document

Attachment: patch_cxx14
Description: Text document

Follow-Ups:
- Re: [PATCH. libstdc++] Use the correct C++14 __cplusplus value (201402L). Added C++1z to the preprocessor.
  - From: Paolo Carlini

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