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| author | Elliott Hughes <enh@google.com> | 2014-06-06 21:43:33 -0700 |
|---|---|---|
| committer | Elliott Hughes <enh@google.com> | 2014-06-06 21:55:27 -0700 |
| commit | 18b17e97757a59718a23f8128dfc91c016df08b1 (patch) | |
| tree | 90922f85d3f49e92b91290a5e97321963ae4e1cc | |
| parent | 19718f0cd605f55df26823c67b62ceab6fe99a00 (diff) | |
| download | bionic-18b17e97757a59718a23f8128dfc91c016df08b1.zip bionic-18b17e97757a59718a23f8128dfc91c016df08b1.tar.gz bionic-18b17e97757a59718a23f8128dfc91c016df08b1.tar.bz2 | |
Add a regression test for two libm bugs we didn't have.
Reported on the OpenBSD list, but we already had the fix for one from FreeBSD,
and I think the other only affected ld80 anyway. Worth having tests thuogh.
Change-Id: Ic4bbeb2384fd578a3ef13e4907be83deda50815f
| -rw-r--r-- | tests/math_test.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/math_test.cpp b/tests/math_test.cpp index b0d541a..b4f5b14 100644 --- a/tests/math_test.cpp +++ b/tests/math_test.cpp @@ -1295,3 +1295,18 @@ TEST(math, frexpf_public_bug_6697) { float fr = frexpf(14.1f, &exp); ASSERT_FLOAT_EQ(14.1f, scalbnf(fr, exp)); } + +TEST(math, exp2_STRICT_ALIGN_OpenBSD_bug) { + // OpenBSD/x86's libm had a bug here, but it was already fixed in FreeBSD: + // http://svnweb.FreeBSD.org/base/head/lib/msun/src/math_private.h?revision=240827&view=markup + ASSERT_DOUBLE_EQ(5.0, exp2(log2(5))); + ASSERT_FLOAT_EQ(5.0f, exp2f(log2f(5))); + ASSERT_DOUBLE_EQ(5.0L, exp2l(log2l(5))); +} + +TEST(math, nextafterl_OpenBSD_bug) { + // OpenBSD/x86's libm had a bug here. + ASSERT_TRUE(nextafter(1.0, 0.0) - 1.0 < 0.0); + ASSERT_TRUE(nextafterf(1.0f, 0.0f) - 1.0f < 0.0f); + ASSERT_TRUE(nextafterl(1.0L, 0.0L) - 1.0L < 0.0L); +} |