diff options
author | Joseph Myers <joseph@codesourcery.com> | 2013-04-30 11:27:35 +0000 |
---|---|---|
committer | Joseph Myers <joseph@codesourcery.com> | 2013-04-30 11:27:35 +0000 |
commit | caf84319c1614d8aa867d8db80219f4e9b1bf735 (patch) | |
tree | 08263d4ddcdf643fc258daeb43718821a2e2fbde /sysdeps/i386/fpu/libm-test-ulps | |
parent | 6dbe713d85fecc1bee99713d745413106af200b7 (diff) | |
download | glibc-caf84319c1614d8aa867d8db80219f4e9b1bf735.tar.gz glibc-caf84319c1614d8aa867d8db80219f4e9b1bf735.tar.xz glibc-caf84319c1614d8aa867d8db80219f4e9b1bf735.zip |
Fix catan, catanh inaccuracy from atan2 denominators near 0 (bug 15416).
Diffstat (limited to 'sysdeps/i386/fpu/libm-test-ulps')
-rw-r--r-- | sysdeps/i386/fpu/libm-test-ulps | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps index e36d0c374d..a3f58447d9 100644 --- a/sysdeps/i386/fpu/libm-test-ulps +++ b/sysdeps/i386/fpu/libm-test-ulps @@ -3480,6 +3480,23 @@ double: 1 idouble: 1 # catan +Test "Imaginary part of: catan (-0x0.fffffffffffff8p0 + 0x1p-27 i) == -7.853981633974482679822974223765039144191e-1 + 3.725290298461914441624447420137706700965e-9 i": +double: 1 +idouble: 1 +Test "Imaginary part of: catan (-0x0.ffffffffffffffffp0 + 0x1p-33 i) == -7.853981633974483095919439232967553115548e-1 + 5.820766091346740722958646680334721192083e-11 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (-0x0.ffffffp0 + 0x1p-13 i) == -7.853981373204155542484315721351697277336e-1 + 6.103515973639646453881721999956617260502e-5 i": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +Test "Imaginary part of: catan (-0x1.0000000000001p0 + 0x1p-27 i) == -7.853981633974484345157511161499711112683e-1 + 3.725290298461913200853528590596263270474e-9 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (-0x1.000002p0 - 0x1p-13 i) == -7.853982267273793866654490522673596014524e-1 - 6.103514882246036852433556327261700380577e-5 i": +double: 1 +idouble: 1 Test "Imaginary part of: catan (-0x1.fp1023 + 0x1.fp1023 i) == -1.570796326794896619231321691639751442099 + 2.871063043235098558826106732041811695767e-309 i": ildouble: 1 ldouble: 1 @@ -3492,11 +3509,37 @@ ldouble: 1 Test "Imaginary part of: catan (-0x1.fp127 - 0x1.fp127 i) == -1.570796326794896619231321691639751442097 - 1.516766904286822590927401983512575068153e-39 i": ildouble: 1 ldouble: 1 +Test "Imaginary part of: catan (-0x1p-33 + 0x0.ffffffffffffffffp0 i) == -7.853981631937214964185249205444919953948e-1 + 1.178350206951907026002603046195591193050e1 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (-0x1p-33 - 0x0.ffffffffffffffffp0 i) == -7.853981631937214964185249205444919953948e-1 - 1.178350206951907026002603046195591193050e1 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (-1.0 - 0x1p-13 i) == -7.853981671227386080775748393881580082970e-1 - 6.103515609841754902688560615027452023669e-5 i": +ildouble: 1 +ldouble: 1 Test "Imaginary part of: catan (-2 - 3 i) == -1.4099210495965755225306193844604208 - 0.22907268296853876629588180294200276 i": double: 1 float: 1 idouble: 1 ifloat: 1 +Test "Imaginary part of: catan (0x0.fffffffffffff8p0 + 0x1p-27 i) == 7.853981633974482679822974223765039144191e-1 + 3.725290298461914441624447420137706700965e-9 i": +double: 1 +idouble: 1 +Test "Imaginary part of: catan (0x0.ffffffffffffffffp0 + 0x1p-33 i) == 7.853981633974483095919439232967553115548e-1 + 5.820766091346740722958646680334721192083e-11 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (0x0.ffffffp0 + 0x1p-13 i) == 7.853981373204155542484315721351697277336e-1 + 6.103515973639646453881721999956617260502e-5 i": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +Test "Imaginary part of: catan (0x1.0000000000001p0 + 0x1p-27 i) == 7.853981633974484345157511161499711112683e-1 + 3.725290298461913200853528590596263270474e-9 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (0x1.000002p0 - 0x1p-13 i) == 7.853982267273793866654490522673596014524e-1 - 6.103514882246036852433556327261700380577e-5 i": +double: 1 +idouble: 1 Test "Imaginary part of: catan (0x1.fp1023 + 0x1.fp1023 i) == 1.570796326794896619231321691639751442099 + 2.871063043235098558826106732041811695767e-309 i": ildouble: 1 ldouble: 1 @@ -3509,8 +3552,23 @@ ldouble: 1 Test "Imaginary part of: catan (0x1.fp127 - 0x1.fp127 i) == 1.570796326794896619231321691639751442097 - 1.516766904286822590927401983512575068153e-39 i": ildouble: 1 ldouble: 1 +Test "Imaginary part of: catan (0x1p-33 + 0x0.ffffffffffffffffp0 i) == 7.853981631937214964185249205444919953948e-1 + 1.178350206951907026002603046195591193050e1 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (0x1p-33 - 0x0.ffffffffffffffffp0 i) == 7.853981631937214964185249205444919953948e-1 - 1.178350206951907026002603046195591193050e1 i": +ildouble: 1 +ldouble: 1 +Test "Imaginary part of: catan (1.0 - 0x1p-13 i) == 7.853981671227386080775748393881580082970e-1 - 6.103515609841754902688560615027452023669e-5 i": +ildouble: 1 +ldouble: 1 # catanh +Test "Real part of: catanh (-0x0.ffffffffffffffffp0 + 0x1p-33 i) == -1.178350206951907026002603046195591193050e1 + 7.853981631937214964185249205444919953948e-1 i": +ildouble: 1 +ldouble: 1 +Test "Real part of: catanh (-0x0.ffffffffffffffffp0 - 0x1p-33 i) == -1.178350206951907026002603046195591193050e1 - 7.853981631937214964185249205444919953948e-1 i": +ildouble: 1 +ldouble: 1 Test "Real part of: catanh (-0x1.fp1023 + 0x1.fp1023 i) == -2.871063043235098558826106732041811695767e-309 + 1.570796326794896619231321691639751442099 i": ildouble: 1 ldouble: 1 @@ -3523,6 +3581,18 @@ ldouble: 1 Test "Real part of: catanh (-0x1.fp127 - 0x1.fp127 i) == -1.516766904286822590927401983512575068153e-39 - 1.570796326794896619231321691639751442097 i": ildouble: 1 ldouble: 1 +Test "Real part of: catanh (-0x1p-13 + 0x1.000002p0 i) == -6.103514882246036852433556327261700380577e-5 + 7.853982267273793866654490522673596014524e-1 i": +double: 1 +idouble: 1 +Test "Real part of: catanh (-0x1p-13 + 1.0 i) == -6.103515609841754902688560615027452023669e-5 + 7.853981671227386080775748393881580082970e-1 i": +ildouble: 1 +ldouble: 1 +Test "Real part of: catanh (-0x1p-13 - 0x1.000002p0 i) == -6.103514882246036852433556327261700380577e-5 - 7.853982267273793866654490522673596014524e-1 i": +double: 1 +idouble: 1 +Test "Real part of: catanh (-0x1p-13 - 1.0 i) == -6.103515609841754902688560615027452023669e-5 - 7.853981671227386080775748393881580082970e-1 i": +ildouble: 1 +ldouble: 1 Test "Real part of: catanh (-2 - 3 i) == -0.14694666622552975204743278515471595 - 1.3389725222944935611241935759091443 i": double: 2 float: 1 @@ -3535,6 +3605,12 @@ double: 1 idouble: 1 ildouble: 1 ldouble: 1 +Test "Real part of: catanh (0x0.ffffffffffffffffp0 + 0x1p-33 i) == 1.178350206951907026002603046195591193050e1 + 7.853981631937214964185249205444919953948e-1 i": +ildouble: 1 +ldouble: 1 +Test "Real part of: catanh (0x0.ffffffffffffffffp0 - 0x1p-33 i) == 1.178350206951907026002603046195591193050e1 - 7.853981631937214964185249205444919953948e-1 i": +ildouble: 1 +ldouble: 1 Test "Real part of: catanh (0x1.fp1023 + 0x1.fp1023 i) == 2.871063043235098558826106732041811695767e-309 + 1.570796326794896619231321691639751442099 i": ildouble: 1 ldouble: 1 @@ -3547,6 +3623,34 @@ ldouble: 1 Test "Real part of: catanh (0x1.fp127 - 0x1.fp127 i) == 1.516766904286822590927401983512575068153e-39 - 1.570796326794896619231321691639751442097 i": ildouble: 1 ldouble: 1 +Test "Real part of: catanh (0x1p-13 + 0x0.ffffffp0 i) == 6.103515973639646453881721999956617260502e-5 + 7.853981373204155542484315721351697277336e-1 i": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +Test "Real part of: catanh (0x1p-13 - 0x0.ffffffp0 i) == 6.103515973639646453881721999956617260502e-5 - 7.853981373204155542484315721351697277336e-1 i": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +Test "Real part of: catanh (0x1p-27 + 0x0.fffffffffffff8p0 i) == 3.725290298461914441624447420137706700965e-9 + 7.853981633974482679822974223765039144191e-1 i": +double: 1 +idouble: 1 +Test "Real part of: catanh (0x1p-27 + 0x1.0000000000001p0 i) == 3.725290298461913200853528590596263270474e-9 + 7.853981633974484345157511161499711112683e-1 i": +ildouble: 1 +ldouble: 1 +Test "Real part of: catanh (0x1p-27 - 0x0.fffffffffffff8p0 i) == 3.725290298461914441624447420137706700965e-9 - 7.853981633974482679822974223765039144191e-1 i": +double: 1 +idouble: 1 +Test "Real part of: catanh (0x1p-27 - 0x1.0000000000001p0 i) == 3.725290298461913200853528590596263270474e-9 - 7.853981633974484345157511161499711112683e-1 i": +ildouble: 1 +ldouble: 1 +Test "Real part of: catanh (0x1p-33 + 0x0.ffffffffffffffffp0 i) == 5.820766091346740722958646680334721192083e-11 + 7.853981633974483095919439232967553115548e-1 i": +ildouble: 1 +ldouble: 1 +Test "Real part of: catanh (0x1p-33 - 0x0.ffffffffffffffffp0 i) == 5.820766091346740722958646680334721192083e-11 - 7.853981633974483095919439232967553115548e-1 i": +ildouble: 1 +ldouble: 1 # cbrt Test "cbrt (-27.0) == -3.0": |