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TR29124 C++ Special Maths - Make <math.h> pull functions into global namespace.

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: Wed, 20 Jan 2016 20:30:04 -0500
Subject: TR29124 C++ Special Maths - Make <math.h> pull functions into global namespace.
Authentication-results: sourceware.org; auth=none

Now that libstdc++ installs a proper math.h we can piggyback on that toput in the last bit of TR29124.

This patch adds the math special functions to c_compatibility/math.h inthe global namespace.

I remove the XFAILs from the compile_2.cc tests.

This converts 21 XFAILs into 21 PASSes.

Tested on x86_64-linux.

I understand if this is too late.
I'll put it up on trunk and backport after stage 1 reopens.

Meanwhile I'll commit this to the tr29124 branch.

Ed

Attachment: CL_tr29124_math_h
Description: Text document

Attachment: patch_tr29124_math_h
Description: Text document

Follow-Ups:
- Re: TR29124 C++ Special Maths - Make <math.h> pull functions into global namespace.
  - From: Jonathan Wakely

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