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Author SHA1 Message Date
Mikhail Maltsev 477b5f688c [libcxx] Improve accuracy of complex asinh and acosh 
Summary:
Currently std::asinh and std::acosh use std::pow to compute x^2. This
results in a significant error when computing e.g. asinh(i) or
acosh(-1).

This patch expresses x^2 directly via x.real() and x.imag(), like it
is done in libstdc++/glibc, and adds tests that checks the accuracy.

Reviewers: EricWF, mclow.lists

Reviewed By: mclow.lists

Subscribers: christof, cfe-commits

Differential Revision: https://reviews.llvm.org/D41629

llvm-svn: 325510
 2018-02-19 15:41:36 +00:00
Stephan T. Lavavej b1ba797d0d [libcxx] [test] Fix Clang -Wunused-local-typedef warnings. 
Fix D34536.

llvm-svn: 308534
 2017-07-19 22:02:29 +00:00
Marshall Clow 217cf69b92 Rename some test data (and make it const) to rid us of some shadowing warnings in the test suite. No functional change. Thanks to STL@microsoft for the report and patch. 
llvm-svn: 271919
 2016-06-06 18:24:08 +00:00
Eric Fiselier 5a83710e37 Move test into test/std subdirectory. 
llvm-svn: 224658
 2014-12-20 01:40:03 +00:00