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-rw-r--r--math/libm-test.inc372
1 files changed, 372 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index d131ffa6f6..8feb0a641a 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -4611,6 +4611,192 @@ catan_test (void)
   TEST_c_c (catan, 0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-57L, 7.853981633974483096156608458198756849381e-1L, -3.469446951953614188823848962783813782817e-18L);
   TEST_c_c (catan, -0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-57L, -7.853981633974483096156608458198756849381e-1L, -3.469446951953614188823848962783813782817e-18L);
 #endif
+  TEST_c_c (catan, 1.0L, 0x1p-64L, 7.853981633974483096156608458198757210500e-1L, 2.710505431213761085018632002174854278563e-20L);
+  TEST_c_c (catan, 1.0L, -0x1p-64L, 7.853981633974483096156608458198757210500e-1L, -2.710505431213761085018632002174854278563e-20L);
+  TEST_c_c (catan, -1.0L, 0x1p-64L, -7.853981633974483096156608458198757210500e-1L, 2.710505431213761085018632002174854278563e-20L);
+  TEST_c_c (catan, -1.0L, -0x1p-64L, -7.853981633974483096156608458198757210500e-1L, -2.710505431213761085018632002174854278563e-20L);
+  TEST_c_c (catan, 0x1p-64L, 1.0L, 7.853981633974483096292133729759445264744e-1L, 2.252728336819822255606004394739073846245e1L);
+  TEST_c_c (catan, -0x1p-64L, 1.0L, -7.853981633974483096292133729759445264744e-1L, 2.252728336819822255606004394739073846245e1L);
+  TEST_c_c (catan, 0x1p-64L, -1.0L, 7.853981633974483096292133729759445264744e-1L, -2.252728336819822255606004394739073846245e1L);
+  TEST_c_c (catan, -0x1p-64L, -1.0L, -7.853981633974483096292133729759445264744e-1L, -2.252728336819822255606004394739073846245e1L);
+  TEST_c_c (catan, 1.0L, 0x1.3p-73L, 7.853981633974483096156608458198757210493e-1L, 6.286572655403010329022706059731717687100e-23L);
+  TEST_c_c (catan, 1.0L, -0x1.3p-73L, 7.853981633974483096156608458198757210493e-1L, -6.286572655403010329022706059731717687100e-23L);
+  TEST_c_c (catan, -1.0L, 0x1.3p-73L, -7.853981633974483096156608458198757210493e-1L, 6.286572655403010329022706059731717687100e-23L);
+  TEST_c_c (catan, -1.0L, -0x1.3p-73L, -7.853981633974483096156608458198757210493e-1L, -6.286572655403010329022706059731717687100e-23L);
+  TEST_c_c (catan, 0x1.3p-73L, 1.0L, 7.853981633974483096156922786831527361009e-1L, 2.556052055225464683726753902092495938633e1L);
+  TEST_c_c (catan, -0x1.3p-73L, 1.0L, -7.853981633974483096156922786831527361009e-1L, 2.556052055225464683726753902092495938633e1L);
+  TEST_c_c (catan, 0x1.3p-73L, -1.0L, 7.853981633974483096156922786831527361009e-1L, -2.556052055225464683726753902092495938633e1L);
+  TEST_c_c (catan, -0x1.3p-73L, -1.0L, -7.853981633974483096156922786831527361009e-1L, -2.556052055225464683726753902092495938633e1L);
+  TEST_c_c (catan, 1.0L, 0x1p-124L, 7.853981633974483096156608458198757210493e-1L, 2.350988701644575015937473074444491355637e-38L);
+  TEST_c_c (catan, 1.0L, -0x1p-124L, 7.853981633974483096156608458198757210493e-1L, -2.350988701644575015937473074444491355637e-38L);
+  TEST_c_c (catan, -1.0L, 0x1p-124L, -7.853981633974483096156608458198757210493e-1L, 2.350988701644575015937473074444491355637e-38L);
+  TEST_c_c (catan, -1.0L, -0x1p-124L, -7.853981633974483096156608458198757210493e-1L, -2.350988701644575015937473074444491355637e-38L);
+  TEST_c_c (catan, 0x1p-124L, 1.0L, 7.853981633974483096156608458198757210610e-1L, 4.332169878499658183857700759113603550472e1L);
+  TEST_c_c (catan, -0x1p-124L, 1.0L, -7.853981633974483096156608458198757210610e-1L, 4.332169878499658183857700759113603550472e1L);
+  TEST_c_c (catan, 0x1p-124L, -1.0L, 7.853981633974483096156608458198757210610e-1L, -4.332169878499658183857700759113603550472e1L);
+  TEST_c_c (catan, -0x1p-124L, -1.0L, -7.853981633974483096156608458198757210610e-1L, -4.332169878499658183857700759113603550472e1L);
+  TEST_c_c (catan, 0x1.000002p0L, 0x1p-126L, 7.853982230020895322927482174768220815493e-1L, 5.877471053462247139383742414506671233336e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, 0x1.000002p0L, -0x1p-126L, 7.853982230020895322927482174768220815493e-1L, -5.877471053462247139383742414506671233336e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, -0x1.000002p0L, 0x1p-126L, -7.853982230020895322927482174768220815493e-1L, 5.877471053462247139383742414506671233336e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, -0x1.000002p0L, -0x1p-126L, -7.853982230020895322927482174768220815493e-1L, -5.877471053462247139383742414506671233336e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, 0x1p-126L, 0x1.000002p0L, 1.570796326794896619231321691639702138295L, 8.317766196521665212523713550410777685446L);
+  TEST_c_c (catan, -0x1p-126L, 0x1.000002p0L, -1.570796326794896619231321691639702138295L, 8.317766196521665212523713550410777685446L);
+  TEST_c_c (catan, 0x1p-126L, -0x1.000002p0L, 1.570796326794896619231321691639702138295L, -8.317766196521665212523713550410777685446L);
+  TEST_c_c (catan, -0x1p-126L, -0x1.000002p0L, -1.570796326794896619231321691639702138295L, -8.317766196521665212523713550410777685446L);
+  TEST_c_c (catan, 0x0.ffffffp0L, 0x1p-126L, 7.853981335951250337419109991749089175724e-1L, 5.877472104436064061535099214664320916184e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, 0x0.ffffffp0L, -0x1p-126L, 7.853981335951250337419109991749089175724e-1L, -5.877472104436064061535099214664320916184e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, -0x0.ffffffp0L, 0x1p-126L, -7.853981335951250337419109991749089175724e-1L, 5.877472104436064061535099214664320916184e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, -0x0.ffffffp0L, -0x1p-126L, -7.853981335951250337419109991749089175724e-1L, -5.877472104436064061535099214664320916184e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catan, 0x1p-126L, 0x0.ffffffp0L, 9.860761609136244031334147100512154160097e-32L, 8.664339742098154951823135931565866792454L);
+  TEST_c_c (catan, -0x1p-126L, 0x0.ffffffp0L, -9.860761609136244031334147100512154160097e-32L, 8.664339742098154951823135931565866792454L);
+  TEST_c_c (catan, 0x1p-126L, -0x0.ffffffp0L, 9.860761609136244031334147100512154160097e-32L, -8.664339742098154951823135931565866792454L);
+  TEST_c_c (catan, -0x1p-126L, -0x0.ffffffp0L, -9.860761609136244031334147100512154160097e-32L, -8.664339742098154951823135931565866792454L);
+#ifndef TEST_FLOAT
+  TEST_c_c (catan, 1.0L, 0x1p-512L, 7.853981633974483096156608458198757210493e-1L, 3.729170365600103371645482657731466918688e-155L);
+  TEST_c_c (catan, 1.0L, -0x1p-512L, 7.853981633974483096156608458198757210493e-1L, -3.729170365600103371645482657731466918688e-155L);
+  TEST_c_c (catan, -1.0L, 0x1p-512L, -7.853981633974483096156608458198757210493e-1L, 3.729170365600103371645482657731466918688e-155L);
+  TEST_c_c (catan, -1.0L, -0x1p-512L, -7.853981633974483096156608458198757210493e-1L, -3.729170365600103371645482657731466918688e-155L);
+  TEST_c_c (catan, 0x1p-512L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 1.777922518136259718655200391540222897114e2L);
+  TEST_c_c (catan, -0x1p-512L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 1.777922518136259718655200391540222897114e2L);
+  TEST_c_c (catan, 0x1p-512L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -1.777922518136259718655200391540222897114e2L);
+  TEST_c_c (catan, -0x1p-512L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -1.777922518136259718655200391540222897114e2L);
+  TEST_c_c (catan, 1.0L, 0x1.3p-536L, 7.853981633974483096156608458198757210493e-1L, 2.639526015013529511588222179446290115084e-162L);
+  TEST_c_c (catan, 1.0L, -0x1.3p-536L, 7.853981633974483096156608458198757210493e-1L, -2.639526015013529511588222179446290115084e-162L);
+  TEST_c_c (catan, -1.0L, 0x1.3p-536L, -7.853981633974483096156608458198757210493e-1L, 2.639526015013529511588222179446290115084e-162L);
+  TEST_c_c (catan, -1.0L, -0x1.3p-536L, -7.853981633974483096156608458198757210493e-1L, -2.639526015013529511588222179446290115084e-162L);
+  TEST_c_c (catan, 0x1.3p-536L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 1.860240928518819859673567751384928348958e2L);
+  TEST_c_c (catan, -0x1.3p-536L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 1.860240928518819859673567751384928348958e2L);
+  TEST_c_c (catan, 0x1.3p-536L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -1.860240928518819859673567751384928348958e2L);
+  TEST_c_c (catan, -0x1.3p-536L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -1.860240928518819859673567751384928348958e2L);
+  TEST_c_c (catan, 1.0L, 0x1p-1020L, 7.853981633974483096156608458198757210493e-1L, 4.450147717014402766180465434664808128438e-308L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, 1.0L, -0x1p-1020L, 7.853981633974483096156608458198757210493e-1L, -4.450147717014402766180465434664808128438e-308L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, -1.0L, 0x1p-1020L, -7.853981633974483096156608458198757210493e-1L, 4.450147717014402766180465434664808128438e-308L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, -1.0L, -0x1p-1020L, -7.853981633974483096156608458198757210493e-1L, -4.450147717014402766180465434664808128438e-308L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, 0x1p-1020L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 3.538516356758520804574969980043991380025e2L);
+  TEST_c_c (catan, -0x1p-1020L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 3.538516356758520804574969980043991380025e2L);
+  TEST_c_c (catan, 0x1p-1020L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -3.538516356758520804574969980043991380025e2L);
+  TEST_c_c (catan, -0x1p-1020L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -3.538516356758520804574969980043991380025e2L);
+  TEST_c_c (catan, 0x1.0000000000001p0L, 0x1p-1022L, 7.853981633974484206379633083355174374608e-1L, 1.112536929253600444512293438042957369978e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1.0000000000001p0L, -0x1p-1022L, 7.853981633974484206379633083355174374608e-1L, -1.112536929253600444512293438042957369978e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x1.0000000000001p0L, 0x1p-1022L, -7.853981633974484206379633083355174374608e-1L, 1.112536929253600444512293438042957369978e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x1.0000000000001p0L, -0x1p-1022L, -7.853981633974484206379633083355174374608e-1L, -1.112536929253600444512293438042957369978e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1p-1022L, 0x1.0000000000001p0L, 1.570796326794896619231321691639751442099L, 1.836840028483855075506780244989950299369e1L);
+  TEST_c_c (catan, -0x1p-1022L, 0x1.0000000000001p0L, -1.570796326794896619231321691639751442099L, 1.836840028483855075506780244989950299369e1L);
+  TEST_c_c (catan, 0x1p-1022L, -0x1.0000000000001p0L, 1.570796326794896619231321691639751442099L, -1.836840028483855075506780244989950299369e1L);
+  TEST_c_c (catan, -0x1p-1022L, -0x1.0000000000001p0L, -1.570796326794896619231321691639751442099L, -1.836840028483855075506780244989950299369e1L);
+  TEST_c_c (catan, 0x0.fffffffffffff8p0L, 0x1p-1022L, 7.853981633974482541045096145620456183798e-1L, 1.112536929253600815061527818977844932790e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x0.fffffffffffff8p0L, -0x1p-1022L, 7.853981633974482541045096145620456183798e-1L, -1.112536929253600815061527818977844932790e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x0.fffffffffffff8p0L, 0x1p-1022L, -7.853981633974482541045096145620456183798e-1L, 1.112536929253600815061527818977844932790e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x0.fffffffffffff8p0L, -0x1p-1022L, -7.853981633974482541045096145620456183798e-1L, -1.112536929253600815061527818977844932790e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1p-1022L, 0x0.fffffffffffff8p0L, 1.002084180004486444624900488355118689113e-292L, 1.871497387511852332650969166374185305708e1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, -0x1p-1022L, 0x0.fffffffffffff8p0L, -1.002084180004486444624900488355118689113e-292L, 1.871497387511852332650969166374185305708e1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, 0x1p-1022L, -0x0.fffffffffffff8p0L, 1.002084180004486444624900488355118689113e-292L, -1.871497387511852332650969166374185305708e1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catan, -0x1p-1022L, -0x0.fffffffffffff8p0L, -1.002084180004486444624900488355118689113e-292L, -1.871497387511852332650969166374185305708e1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 64
+  TEST_c_c (catan, 0x1.0000000000000002p0L, 0x1p-1022L, 7.853981633974483096698709544441509427467e-1L, 1.112536929253600691424494863099491450042e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1.0000000000000002p0L, -0x1p-1022L, 7.853981633974483096698709544441509427467e-1L, -1.112536929253600691424494863099491450042e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x1.0000000000000002p0L, 0x1p-1022L, -7.853981633974483096698709544441509427467e-1L, 1.112536929253600691424494863099491450042e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x1.0000000000000002p0L, -0x1p-1022L, -7.853981633974483096698709544441509427467e-1L, -1.112536929253600691424494863099491450042e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1p-1022L, 0x1.0000000000000002p0L, 1.570796326794896619231321691639751442099L, 2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, -0x1p-1022L, 0x1.0000000000000002p0L, -1.570796326794896619231321691639751442099L, 2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, 0x1p-1022L, -0x1.0000000000000002p0L, 1.570796326794896619231321691639751442099L, -2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, -0x1p-1022L, -0x1.0000000000000002p0L, -1.570796326794896619231321691639751442099L, -2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, 0x0.ffffffffffffffffp0L, 0x1p-1022L, 7.853981633974483095885557915077381101984e-1L, 1.112536929253600691605427106449557323148e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x0.ffffffffffffffffp0L, -0x1p-1022L, 7.853981633974483095885557915077381101984e-1L, -1.112536929253600691605427106449557323148e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x0.ffffffffffffffffp0L, 0x1p-1022L, -7.853981633974483095885557915077381101984e-1L, 1.112536929253600691605427106449557323148e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x0.ffffffffffffffffp0L, -0x1p-1022L, -7.853981633974483095885557915077381101984e-1L, -1.112536929253600691605427106449557323148e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1p-1022L, 0x0.ffffffffffffffffp0L, 2.052268400649188124723641491045245971623e-289L, 2.252728336819822255604649142023466965703e1L);
+  TEST_c_c (catan, -0x1p-1022L, 0x0.ffffffffffffffffp0L, -2.052268400649188124723641491045245971623e-289L, 2.252728336819822255604649142023466965703e1L);
+  TEST_c_c (catan, 0x1p-1022L, -0x0.ffffffffffffffffp0L, 2.052268400649188124723641491045245971623e-289L, -2.252728336819822255604649142023466965703e1L);
+  TEST_c_c (catan, -0x1p-1022L, -0x0.ffffffffffffffffp0L, -2.052268400649188124723641491045245971623e-289L, -2.252728336819822255604649142023466965703e1L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 106
+  TEST_c_c (catan, 0x1.000000000000000000000000008p0L, 0x1p-1022L, 7.853981633974483096156608458198880470009e-1L, 1.112536929253600691545116358666174605957e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1.000000000000000000000000008p0L, -0x1p-1022L, 7.853981633974483096156608458198880470009e-1L, -1.112536929253600691545116358666174605957e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x1.000000000000000000000000008p0L, 0x1p-1022L, -7.853981633974483096156608458198880470009e-1L, 1.112536929253600691545116358666174605957e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x1.000000000000000000000000008p0L, -0x1p-1022L, -7.853981633974483096156608458198880470009e-1L, -1.112536929253600691545116358666174605957e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1p-1022L, 0x1.000000000000000000000000008p0L, 1.570796326794896619231321691639751442099L, 3.673680056967710139911330243728336427098e1L);
+  TEST_c_c (catan, -0x1p-1022L, 0x1.000000000000000000000000008p0L, -1.570796326794896619231321691639751442099L, 3.673680056967710139911330243728336427098e1L);
+  TEST_c_c (catan, 0x1p-1022L, -0x1.000000000000000000000000008p0L, 1.570796326794896619231321691639751442099L, -3.673680056967710139911330243728336427098e1L);
+  TEST_c_c (catan, -0x1p-1022L, -0x1.000000000000000000000000008p0L, -1.570796326794896619231321691639751442099L, -3.673680056967710139911330243728336427098e1L);
+  TEST_c_c (catan, 0x0.ffffffffffffffffffffffffffcp0L, 0x1p-1022L, 7.853981633974483096156608458198695580735e-1L, 1.112536929253600691545116358666215745186e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x0.ffffffffffffffffffffffffffcp0L, -0x1p-1022L, 7.853981633974483096156608458198695580735e-1L, -1.112536929253600691545116358666215745186e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x0.ffffffffffffffffffffffffffcp0L, 0x1p-1022L, -7.853981633974483096156608458198695580735e-1L, 1.112536929253600691545116358666215745186e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, -0x0.ffffffffffffffffffffffffffcp0L, -0x1p-1022L, -7.853981633974483096156608458198695580735e-1L, -1.112536929253600691545116358666215745186e-308L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catan, 0x1p-1022L, 0x0.ffffffffffffffffffffffffffcp0L, 9.025971879324147880346310405868788320726e-277L, 3.708337415995707405382191849801244331055e1L);
+  TEST_c_c (catan, -0x1p-1022L, 0x0.ffffffffffffffffffffffffffcp0L, -9.025971879324147880346310405868788320726e-277L, 3.708337415995707405382191849801244331055e1L);
+  TEST_c_c (catan, 0x1p-1022L, -0x0.ffffffffffffffffffffffffffcp0L, 9.025971879324147880346310405868788320726e-277L, -3.708337415995707405382191849801244331055e1L);
+  TEST_c_c (catan, -0x1p-1022L, -0x0.ffffffffffffffffffffffffffcp0L, -9.025971879324147880346310405868788320726e-277L, -3.708337415995707405382191849801244331055e1L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
+  TEST_c_c (catan, 1.0L, 0x1p-8192L, 7.853981633974483096156608458198757210493e-1L, 4.584009668887117914053530980121207914891e-2467L);
+  TEST_c_c (catan, 1.0L, -0x1p-8192L, 7.853981633974483096156608458198757210493e-1L, -4.584009668887117914053530980121207914891e-2467L);
+  TEST_c_c (catan, -1.0L, 0x1p-8192L, -7.853981633974483096156608458198757210493e-1L, 4.584009668887117914053530980121207914891e-2467L);
+  TEST_c_c (catan, -1.0L, -0x1p-8192L, -7.853981633974483096156608458198757210493e-1L, -4.584009668887117914053530980121207914891e-2467L);
+  TEST_c_c (catan, 0x1p-8192L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 2.839477425163815960027691385553420311121e3L);
+  TEST_c_c (catan, -0x1p-8192L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 2.839477425163815960027691385553420311121e3L);
+  TEST_c_c (catan, 0x1p-8192L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -2.839477425163815960027691385553420311121e3L);
+  TEST_c_c (catan, -0x1p-8192L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -2.839477425163815960027691385553420311121e3L);
+  TEST_c_c (catan, 1.0L, 0x1.3p-8221L, 7.853981633974483096156608458198757210493e-1L, 1.013933025636421986471594877335044443409e-2475L);
+  TEST_c_c (catan, 1.0L, -0x1.3p-8221L, 7.853981633974483096156608458198757210493e-1L, -1.013933025636421986471594877335044443409e-2475L);
+  TEST_c_c (catan, -1.0L, 0x1.3p-8221L, -7.853981633974483096156608458198757210493e-1L, 1.013933025636421986471594877335044443409e-2475L);
+  TEST_c_c (catan, -1.0L, -0x1.3p-8221L, -7.853981633974483096156608458198757210493e-1L, -1.013933025636421986471594877335044443409e-2475L);
+  TEST_c_c (catan, 0x1.3p-8221L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 2.849442134153471837403071201841536297726e3L);
+  TEST_c_c (catan, -0x1.3p-8221L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 2.849442134153471837403071201841536297726e3L);
+  TEST_c_c (catan, 0x1.3p-8221L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -2.849442134153471837403071201841536297726e3L);
+  TEST_c_c (catan, -0x1.3p-8221L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -2.849442134153471837403071201841536297726e3L);
+  TEST_c_c (catan, 1.0L, 0x1.3p-8246L, 7.853981633974483096156608458198757210493e-1L, 3.021755890954798419688924781486524472858e-2483L);
+  TEST_c_c (catan, 1.0L, -0x1.3p-8246L, 7.853981633974483096156608458198757210493e-1L, -3.021755890954798419688924781486524472858e-2483L);
+  TEST_c_c (catan, -1.0L, 0x1.3p-8246L, -7.853981633974483096156608458198757210493e-1L, 3.021755890954798419688924781486524472858e-2483L);
+  TEST_c_c (catan, -1.0L, -0x1.3p-8246L, -7.853981633974483096156608458198757210493e-1L, -3.021755890954798419688924781486524472858e-2483L);
+  TEST_c_c (catan, 0x1.3p-8246L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 2.858106473910471153770786603359763504827e3L);
+  TEST_c_c (catan, -0x1.3p-8246L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 2.858106473910471153770786603359763504827e3L);
+  TEST_c_c (catan, 0x1.3p-8246L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -2.858106473910471153770786603359763504827e3L);
+  TEST_c_c (catan, -0x1.3p-8246L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -2.858106473910471153770786603359763504827e3L);
+  TEST_c_c (catan, 1.0L, 0x1p-16380L, 7.853981633974483096156608458198757210493e-1L, 6.724206286224187012525355634643505205196e-4932L);
+  TEST_c_c (catan, 1.0L, -0x1p-16380L, 7.853981633974483096156608458198757210493e-1L, -6.724206286224187012525355634643505205196e-4932L);
+  TEST_c_c (catan, -1.0L, 0x1p-16380L, -7.853981633974483096156608458198757210493e-1L, 6.724206286224187012525355634643505205196e-4932L);
+  TEST_c_c (catan, -1.0L, -0x1p-16380L, -7.853981633974483096156608458198757210493e-1L, -6.724206286224187012525355634643505205196e-4932L);
+  TEST_c_c (catan, 0x1p-16380L, 1.0L, 7.853981633974483096156608458198757210493e-1L, 5.677221982376232056781839690803195180822e3L);
+  TEST_c_c (catan, -0x1p-16380L, 1.0L, -7.853981633974483096156608458198757210493e-1L, 5.677221982376232056781839690803195180822e3L);
+  TEST_c_c (catan, 0x1p-16380L, -1.0L, 7.853981633974483096156608458198757210493e-1L, -5.677221982376232056781839690803195180822e3L);
+  TEST_c_c (catan, -0x1p-16380L, -1.0L, -7.853981633974483096156608458198757210493e-1L, -5.677221982376232056781839690803195180822e3L);
+  TEST_c_c (catan, 0x1.0000000000000002p0L, 0x1p-16382L, 7.853981633974483096698709544441509427467e-1L, 1.681051571556046752949078932066752571182e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x1.0000000000000002p0L, -0x1p-16382L, 7.853981633974483096698709544441509427467e-1L, -1.681051571556046752949078932066752571182e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x1.0000000000000002p0L, 0x1p-16382L, -7.853981633974483096698709544441509427467e-1L, 1.681051571556046752949078932066752571182e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x1.0000000000000002p0L, -0x1p-16382L, -7.853981633974483096698709544441509427467e-1L, -1.681051571556046752949078932066752571182e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x1p-16382L, 0x1.0000000000000002p0L, 1.570796326794896619231321691639751442099L, 2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, -0x1p-16382L, 0x1.0000000000000002p0L, -1.570796326794896619231321691639751442099L, 2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, 0x1p-16382L, -0x1.0000000000000002p0L, 1.570796326794896619231321691639751442099L, -2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, -0x1p-16382L, -0x1.0000000000000002p0L, -1.570796326794896619231321691639751442099L, -2.218070977791824990137853294097378778927e1L);
+  TEST_c_c (catan, 0x0.ffffffffffffffffp0L, 0x1p-16382L, 7.853981633974483095885557915077381101984e-1L, 1.681051571556046753222468896957938166365e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x0.ffffffffffffffffp0L, -0x1p-16382L, 7.853981633974483095885557915077381101984e-1L, -1.681051571556046753222468896957938166365e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x0.ffffffffffffffffp0L, 0x1p-16382L, -7.853981633974483095885557915077381101984e-1L, 1.681051571556046753222468896957938166365e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x0.ffffffffffffffffp0L, -0x1p-16382L, -7.853981633974483095885557915077381101984e-1L, -1.681051571556046753222468896957938166365e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x1p-16382L, 0x0.ffffffffffffffffp0L, 3.100992811520163369065387859792822623745e-4913L, 2.252728336819822255604649142023466965703e1L);
+  TEST_c_c (catan, -0x1p-16382L, 0x0.ffffffffffffffffp0L, -3.100992811520163369065387859792822623745e-4913L, 2.252728336819822255604649142023466965703e1L);
+  TEST_c_c (catan, 0x1p-16382L, -0x0.ffffffffffffffffp0L, 3.100992811520163369065387859792822623745e-4913L, -2.252728336819822255604649142023466965703e1L);
+  TEST_c_c (catan, -0x1p-16382L, -0x0.ffffffffffffffffp0L, -3.100992811520163369065387859792822623745e-4913L, -2.252728336819822255604649142023466965703e1L);
+# if LDBL_MANT_DIG >= 113
+  TEST_c_c (catan, 0x1.0000000000000000000000000001p0L, 0x1p-16382L, 7.853981633974483096156608458198758173458e-1L, 1.681051571556046753131338908660875977540e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x1.0000000000000000000000000001p0L, -0x1p-16382L, 7.853981633974483096156608458198758173458e-1L, -1.681051571556046753131338908660875977540e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x1.0000000000000000000000000001p0L, 0x1p-16382L, -7.853981633974483096156608458198758173458e-1L, 1.681051571556046753131338908660875977540e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x1.0000000000000000000000000001p0L, -0x1p-16382L, -7.853981633974483096156608458198758173458e-1L, -1.681051571556046753131338908660875977540e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x1p-16382L, 0x1.0000000000000000000000000001p0L, 1.570796326794896619231321691639751442099L, 3.916281570163690998207361486238697614441e1L);
+  TEST_c_c (catan, -0x1p-16382L, 0x1.0000000000000000000000000001p0L, -1.570796326794896619231321691639751442099L, 3.916281570163690998207361486238697614441e1L);
+  TEST_c_c (catan, 0x1p-16382L, -0x1.0000000000000000000000000001p0L, 1.570796326794896619231321691639751442099L, -3.916281570163690998207361486238697614441e1L);
+  TEST_c_c (catan, -0x1p-16382L, -0x1.0000000000000000000000000001p0L, -1.570796326794896619231321691639751442099L, -3.916281570163690998207361486238697614441e1L);
+  TEST_c_c (catan, 0x0.ffffffffffffffffffffffffffff8p0L, 0x1p-16382L, 7.853981633974483096156608458198756729010e-1L, 1.681051571556046753131338908660876463178e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-16382L, 7.853981633974483096156608458198756729010e-1L, -1.681051571556046753131338908660876463178e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x0.ffffffffffffffffffffffffffff8p0L, 0x1p-16382L, -7.853981633974483096156608458198756729010e-1L, 1.681051571556046753131338908660876463178e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, -0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-16382L, -7.853981633974483096156608458198756729010e-1L, -1.681051571556046753131338908660876463178e-4932L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catan, 0x1p-16382L, 0x0.ffffffffffffffffffffffffffff8p0L, 1.745703758805099310527547423749501866998e-4898L, 3.950938929191688263678223092311606435623e1L);
+  TEST_c_c (catan, -0x1p-16382L, 0x0.ffffffffffffffffffffffffffff8p0L, -1.745703758805099310527547423749501866998e-4898L, 3.950938929191688263678223092311606435623e1L);
+  TEST_c_c (catan, 0x1p-16382L, -0x0.ffffffffffffffffffffffffffff8p0L, 1.745703758805099310527547423749501866998e-4898L, -3.950938929191688263678223092311606435623e1L);
+  TEST_c_c (catan, -0x1p-16382L, -0x0.ffffffffffffffffffffffffffff8p0L, -1.745703758805099310527547423749501866998e-4898L, -3.950938929191688263678223092311606435623e1L);
+# endif
+#endif
 
   TEST_c_c (catan, 0.75L, 1.25L, 1.10714871779409050301706546017853704L, 0.549306144334054845697622618461262852L);
   TEST_c_c (catan, -2, -3, -1.4099210495965755225306193844604208L, -0.22907268296853876629588180294200276L);
@@ -4935,6 +5121,192 @@ catanh_test (void)
   TEST_c_c (catanh, 0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-57L, 2.010126823623841397309973152228712040498e1L, -7.853981633974483044114904178894544378135e-1L);
   TEST_c_c (catanh, -0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-57L, -2.010126823623841397309973152228712040498e1L, -7.853981633974483044114904178894544378135e-1L);
 #endif
+  TEST_c_c (catanh, 1.0L, 0x1p-64L, 2.252728336819822255606004394739073846245e1L, 7.853981633974483096292133729759445264744e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1p-64L, 2.252728336819822255606004394739073846245e1L, -7.853981633974483096292133729759445264744e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1p-64L, -2.252728336819822255606004394739073846245e1L, 7.853981633974483096292133729759445264744e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1p-64L, -2.252728336819822255606004394739073846245e1L, -7.853981633974483096292133729759445264744e-1L);
+  TEST_c_c (catanh, 0x1p-64L, 1.0L, 2.710505431213761085018632002174854278563e-20L, 7.853981633974483096156608458198757210500e-1L);
+  TEST_c_c (catanh, -0x1p-64L, 1.0L, -2.710505431213761085018632002174854278563e-20L, 7.853981633974483096156608458198757210500e-1L);
+  TEST_c_c (catanh, 0x1p-64L, -1.0L, 2.710505431213761085018632002174854278563e-20L, -7.853981633974483096156608458198757210500e-1L);
+  TEST_c_c (catanh, -0x1p-64L, -1.0L, -2.710505431213761085018632002174854278563e-20L, -7.853981633974483096156608458198757210500e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1.3p-73L, 2.556052055225464683726753902092495938633e1L, 7.853981633974483096156922786831527361009e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1.3p-73L, 2.556052055225464683726753902092495938633e1L, -7.853981633974483096156922786831527361009e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1.3p-73L, -2.556052055225464683726753902092495938633e1L, 7.853981633974483096156922786831527361009e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1.3p-73L, -2.556052055225464683726753902092495938633e1L, -7.853981633974483096156922786831527361009e-1L);
+  TEST_c_c (catanh, 0x1.3p-73L, 1.0L, 6.286572655403010329022706059731717687100e-23L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-73L, 1.0L, -6.286572655403010329022706059731717687100e-23L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-73L, -1.0L, 6.286572655403010329022706059731717687100e-23L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-73L, -1.0L, -6.286572655403010329022706059731717687100e-23L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1p-124L, 4.332169878499658183857700759113603550472e1L, 7.853981633974483096156608458198757210610e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1p-124L, 4.332169878499658183857700759113603550472e1L, -7.853981633974483096156608458198757210610e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1p-124L, -4.332169878499658183857700759113603550472e1L, 7.853981633974483096156608458198757210610e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1p-124L, -4.332169878499658183857700759113603550472e1L, -7.853981633974483096156608458198757210610e-1L);
+  TEST_c_c (catanh, 0x1p-124L, 1.0L, 2.350988701644575015937473074444491355637e-38L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-124L, 1.0L, -2.350988701644575015937473074444491355637e-38L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-124L, -1.0L, 2.350988701644575015937473074444491355637e-38L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-124L, -1.0L, -2.350988701644575015937473074444491355637e-38L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.000002p0L, 0x1p-126L, 8.317766196521665212523713550410777685446L, 1.570796326794896619231321691639702138295L);
+  TEST_c_c (catanh, 0x1.000002p0L, -0x1p-126L, 8.317766196521665212523713550410777685446L, -1.570796326794896619231321691639702138295L);
+  TEST_c_c (catanh, -0x1.000002p0L, 0x1p-126L, -8.317766196521665212523713550410777685446L, 1.570796326794896619231321691639702138295L);
+  TEST_c_c (catanh, -0x1.000002p0L, -0x1p-126L, -8.317766196521665212523713550410777685446L, -1.570796326794896619231321691639702138295L);
+  TEST_c_c (catanh, 0x1p-126L, 0x1.000002p0L, 5.877471053462247139383742414506671233336e-39L, 7.853982230020895322927482174768220815493e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, -0x1p-126L, 0x1.000002p0L, -5.877471053462247139383742414506671233336e-39L, 7.853982230020895322927482174768220815493e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, 0x1p-126L, -0x1.000002p0L, 5.877471053462247139383742414506671233336e-39L, -7.853982230020895322927482174768220815493e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, -0x1p-126L, -0x1.000002p0L, -5.877471053462247139383742414506671233336e-39L, -7.853982230020895322927482174768220815493e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, 0x0.ffffffp0L, 0x1p-126L, 8.664339742098154951823135931565866792454L, 9.860761609136244031334147100512154160097e-32L);
+  TEST_c_c (catanh, 0x0.ffffffp0L, -0x1p-126L, 8.664339742098154951823135931565866792454L, -9.860761609136244031334147100512154160097e-32L);
+  TEST_c_c (catanh, -0x0.ffffffp0L, 0x1p-126L, -8.664339742098154951823135931565866792454L, 9.860761609136244031334147100512154160097e-32L);
+  TEST_c_c (catanh, -0x0.ffffffp0L, -0x1p-126L, -8.664339742098154951823135931565866792454L, -9.860761609136244031334147100512154160097e-32L);
+  TEST_c_c (catanh, 0x1p-126L, 0x0.ffffffp0L, 5.877472104436064061535099214664320916184e-39L, 7.853981335951250337419109991749089175724e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, -0x1p-126L, 0x0.ffffffp0L, -5.877472104436064061535099214664320916184e-39L, 7.853981335951250337419109991749089175724e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, 0x1p-126L, -0x0.ffffffp0L, 5.877472104436064061535099214664320916184e-39L, -7.853981335951250337419109991749089175724e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (catanh, -0x1p-126L, -0x0.ffffffp0L, -5.877472104436064061535099214664320916184e-39L, -7.853981335951250337419109991749089175724e-1L, UNDERFLOW_EXCEPTION_FLOAT);
+#ifndef TEST_FLOAT
+  TEST_c_c (catanh, 1.0L, 0x1p-512L, 1.777922518136259718655200391540222897114e2L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1p-512L, 1.777922518136259718655200391540222897114e2L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1p-512L, -1.777922518136259718655200391540222897114e2L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1p-512L, -1.777922518136259718655200391540222897114e2L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-512L, 1.0L, 3.729170365600103371645482657731466918688e-155L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-512L, 1.0L, -3.729170365600103371645482657731466918688e-155L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-512L, -1.0L, 3.729170365600103371645482657731466918688e-155L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-512L, -1.0L, -3.729170365600103371645482657731466918688e-155L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1.3p-536L, 1.860240928518819859673567751384928348958e2L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1.3p-536L, 1.860240928518819859673567751384928348958e2L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1.3p-536L, -1.860240928518819859673567751384928348958e2L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1.3p-536L, -1.860240928518819859673567751384928348958e2L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-536L, 1.0L, 2.639526015013529511588222179446290115084e-162L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-536L, 1.0L, -2.639526015013529511588222179446290115084e-162L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-536L, -1.0L, 2.639526015013529511588222179446290115084e-162L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-536L, -1.0L, -2.639526015013529511588222179446290115084e-162L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1p-1020L, 3.538516356758520804574969980043991380025e2L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1p-1020L, 3.538516356758520804574969980043991380025e2L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1p-1020L, -3.538516356758520804574969980043991380025e2L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1p-1020L, -3.538516356758520804574969980043991380025e2L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-1020L, 1.0L, 4.450147717014402766180465434664808128438e-308L, 7.853981633974483096156608458198757210493e-1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, -0x1p-1020L, 1.0L, -4.450147717014402766180465434664808128438e-308L, 7.853981633974483096156608458198757210493e-1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, 0x1p-1020L, -1.0L, 4.450147717014402766180465434664808128438e-308L, -7.853981633974483096156608458198757210493e-1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, -0x1p-1020L, -1.0L, -4.450147717014402766180465434664808128438e-308L, -7.853981633974483096156608458198757210493e-1L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, 0x1.0000000000001p0L, 0x1p-1022L, 1.836840028483855075506780244989950299369e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1.0000000000001p0L, -0x1p-1022L, 1.836840028483855075506780244989950299369e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000001p0L, 0x1p-1022L, -1.836840028483855075506780244989950299369e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000001p0L, -0x1p-1022L, -1.836840028483855075506780244989950299369e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1p-1022L, 0x1.0000000000001p0L, 1.112536929253600444512293438042957369978e-308L, 7.853981633974484206379633083355174374608e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, 0x1.0000000000001p0L, -1.112536929253600444512293438042957369978e-308L, 7.853981633974484206379633083355174374608e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x1p-1022L, -0x1.0000000000001p0L, 1.112536929253600444512293438042957369978e-308L, -7.853981633974484206379633083355174374608e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, -0x1.0000000000001p0L, -1.112536929253600444512293438042957369978e-308L, -7.853981633974484206379633083355174374608e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x0.fffffffffffff8p0L, 0x1p-1022L, 1.871497387511852332650969166374185305708e1L, 1.002084180004486444624900488355118689113e-292L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, 0x0.fffffffffffff8p0L, -0x1p-1022L, 1.871497387511852332650969166374185305708e1L, -1.002084180004486444624900488355118689113e-292L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, -0x0.fffffffffffff8p0L, 0x1p-1022L, -1.871497387511852332650969166374185305708e1L, 1.002084180004486444624900488355118689113e-292L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, -0x0.fffffffffffff8p0L, -0x1p-1022L, -1.871497387511852332650969166374185305708e1L, -1.002084180004486444624900488355118689113e-292L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (catanh, 0x1p-1022L, 0x0.fffffffffffff8p0L, 1.112536929253600815061527818977844932790e-308L, 7.853981633974482541045096145620456183798e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, 0x0.fffffffffffff8p0L, -1.112536929253600815061527818977844932790e-308L, 7.853981633974482541045096145620456183798e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x1p-1022L, -0x0.fffffffffffff8p0L, 1.112536929253600815061527818977844932790e-308L, -7.853981633974482541045096145620456183798e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, -0x0.fffffffffffff8p0L, -1.112536929253600815061527818977844932790e-308L, -7.853981633974482541045096145620456183798e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 64
+  TEST_c_c (catanh, 0x1.0000000000000002p0L, 0x1p-1022L, 2.218070977791824990137853294097378778927e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1.0000000000000002p0L, -0x1p-1022L, 2.218070977791824990137853294097378778927e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000000002p0L, 0x1p-1022L, -2.218070977791824990137853294097378778927e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000000002p0L, -0x1p-1022L, -2.218070977791824990137853294097378778927e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1p-1022L, 0x1.0000000000000002p0L, 1.112536929253600691424494863099491450042e-308L, 7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, 0x1.0000000000000002p0L, -1.112536929253600691424494863099491450042e-308L, 7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x1p-1022L, -0x1.0000000000000002p0L, 1.112536929253600691424494863099491450042e-308L, -7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, -0x1.0000000000000002p0L, -1.112536929253600691424494863099491450042e-308L, -7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffp0L, 0x1p-1022L, 2.252728336819822255604649142023466965703e1L, 2.052268400649188124723641491045245971623e-289L);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffp0L, -0x1p-1022L, 2.252728336819822255604649142023466965703e1L, -2.052268400649188124723641491045245971623e-289L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffp0L, 0x1p-1022L, -2.252728336819822255604649142023466965703e1L, 2.052268400649188124723641491045245971623e-289L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffp0L, -0x1p-1022L, -2.252728336819822255604649142023466965703e1L, -2.052268400649188124723641491045245971623e-289L);
+  TEST_c_c (catanh, 0x1p-1022L, 0x0.ffffffffffffffffp0L, 1.112536929253600691605427106449557323148e-308L, 7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, 0x0.ffffffffffffffffp0L, -1.112536929253600691605427106449557323148e-308L, 7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x1p-1022L, -0x0.ffffffffffffffffp0L, 1.112536929253600691605427106449557323148e-308L, -7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, -0x0.ffffffffffffffffp0L, -1.112536929253600691605427106449557323148e-308L, -7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 106
+  TEST_c_c (catanh, 0x1.000000000000000000000000008p0L, 0x1p-1022L, 3.673680056967710139911330243728336427098e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1.000000000000000000000000008p0L, -0x1p-1022L, 3.673680056967710139911330243728336427098e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.000000000000000000000000008p0L, 0x1p-1022L, -3.673680056967710139911330243728336427098e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.000000000000000000000000008p0L, -0x1p-1022L, -3.673680056967710139911330243728336427098e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1p-1022L, 0x1.000000000000000000000000008p0L, 1.112536929253600691545116358666174605957e-308L, 7.853981633974483096156608458198880470009e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, 0x1.000000000000000000000000008p0L, -1.112536929253600691545116358666174605957e-308L, 7.853981633974483096156608458198880470009e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x1p-1022L, -0x1.000000000000000000000000008p0L, 1.112536929253600691545116358666174605957e-308L, -7.853981633974483096156608458198880470009e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, -0x1.000000000000000000000000008p0L, -1.112536929253600691545116358666174605957e-308L, -7.853981633974483096156608458198880470009e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffffffffffffcp0L, 0x1p-1022L, 3.708337415995707405382191849801244331055e1L, 9.025971879324147880346310405868788320726e-277L);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffffffffffffcp0L, -0x1p-1022L, 3.708337415995707405382191849801244331055e1L, -9.025971879324147880346310405868788320726e-277L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffffffffffffcp0L, 0x1p-1022L, -3.708337415995707405382191849801244331055e1L, 9.025971879324147880346310405868788320726e-277L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffffffffffffcp0L, -0x1p-1022L, -3.708337415995707405382191849801244331055e1L, -9.025971879324147880346310405868788320726e-277L);
+  TEST_c_c (catanh, 0x1p-1022L, 0x0.ffffffffffffffffffffffffffcp0L, 1.112536929253600691545116358666215745186e-308L, 7.853981633974483096156608458198695580735e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, 0x0.ffffffffffffffffffffffffffcp0L, -1.112536929253600691545116358666215745186e-308L, 7.853981633974483096156608458198695580735e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, 0x1p-1022L, -0x0.ffffffffffffffffffffffffffcp0L, 1.112536929253600691545116358666215745186e-308L, -7.853981633974483096156608458198695580735e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (catanh, -0x1p-1022L, -0x0.ffffffffffffffffffffffffffcp0L, -1.112536929253600691545116358666215745186e-308L, -7.853981633974483096156608458198695580735e-1L, UNDERFLOW_EXCEPTION_DOUBLE);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
+  TEST_c_c (catanh, 1.0L, 0x1p-8192L, 2.839477425163815960027691385553420311121e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1p-8192L, 2.839477425163815960027691385553420311121e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1p-8192L, -2.839477425163815960027691385553420311121e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1p-8192L, -2.839477425163815960027691385553420311121e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-8192L, 1.0L, 4.584009668887117914053530980121207914891e-2467L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-8192L, 1.0L, -4.584009668887117914053530980121207914891e-2467L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-8192L, -1.0L, 4.584009668887117914053530980121207914891e-2467L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-8192L, -1.0L, -4.584009668887117914053530980121207914891e-2467L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1.3p-8221L, 2.849442134153471837403071201841536297726e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1.3p-8221L, 2.849442134153471837403071201841536297726e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1.3p-8221L, -2.849442134153471837403071201841536297726e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1.3p-8221L, -2.849442134153471837403071201841536297726e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-8221L, 1.0L, 1.013933025636421986471594877335044443409e-2475L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-8221L, 1.0L, -1.013933025636421986471594877335044443409e-2475L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-8221L, -1.0L, 1.013933025636421986471594877335044443409e-2475L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-8221L, -1.0L, -1.013933025636421986471594877335044443409e-2475L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1.3p-8246L, 2.858106473910471153770786603359763504827e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1.3p-8246L, 2.858106473910471153770786603359763504827e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1.3p-8246L, -2.858106473910471153770786603359763504827e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1.3p-8246L, -2.858106473910471153770786603359763504827e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-8246L, 1.0L, 3.021755890954798419688924781486524472858e-2483L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-8246L, 1.0L, -3.021755890954798419688924781486524472858e-2483L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.3p-8246L, -1.0L, 3.021755890954798419688924781486524472858e-2483L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1.3p-8246L, -1.0L, -3.021755890954798419688924781486524472858e-2483L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, 0x1p-16380L, 5.677221982376232056781839690803195180822e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 1.0L, -0x1p-16380L, 5.677221982376232056781839690803195180822e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, 0x1p-16380L, -5.677221982376232056781839690803195180822e3L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -1.0L, -0x1p-16380L, -5.677221982376232056781839690803195180822e3L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-16380L, 1.0L, 6.724206286224187012525355634643505205196e-4932L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-16380L, 1.0L, -6.724206286224187012525355634643505205196e-4932L, 7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1p-16380L, -1.0L, 6.724206286224187012525355634643505205196e-4932L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, -0x1p-16380L, -1.0L, -6.724206286224187012525355634643505205196e-4932L, -7.853981633974483096156608458198757210493e-1L);
+  TEST_c_c (catanh, 0x1.0000000000000002p0L, 0x1p-16382L, 2.218070977791824990137853294097378778927e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1.0000000000000002p0L, -0x1p-16382L, 2.218070977791824990137853294097378778927e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000000002p0L, 0x1p-16382L, -2.218070977791824990137853294097378778927e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000000002p0L, -0x1p-16382L, -2.218070977791824990137853294097378778927e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1p-16382L, 0x1.0000000000000002p0L, 1.681051571556046752949078932066752571182e-4932L, 7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, 0x1.0000000000000002p0L, -1.681051571556046752949078932066752571182e-4932L, 7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, 0x1p-16382L, -0x1.0000000000000002p0L, 1.681051571556046752949078932066752571182e-4932L, -7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, -0x1.0000000000000002p0L, -1.681051571556046752949078932066752571182e-4932L, -7.853981633974483096698709544441509427467e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffp0L, 0x1p-16382L, 2.252728336819822255604649142023466965703e1L, 3.100992811520163369065387859792822623745e-4913L);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffp0L, -0x1p-16382L, 2.252728336819822255604649142023466965703e1L, -3.100992811520163369065387859792822623745e-4913L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffp0L, 0x1p-16382L, -2.252728336819822255604649142023466965703e1L, 3.100992811520163369065387859792822623745e-4913L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffp0L, -0x1p-16382L, -2.252728336819822255604649142023466965703e1L, -3.100992811520163369065387859792822623745e-4913L);
+  TEST_c_c (catanh, 0x1p-16382L, 0x0.ffffffffffffffffp0L, 1.681051571556046753222468896957938166365e-4932L, 7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, 0x0.ffffffffffffffffp0L, -1.681051571556046753222468896957938166365e-4932L, 7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, 0x1p-16382L, -0x0.ffffffffffffffffp0L, 1.681051571556046753222468896957938166365e-4932L, -7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, -0x0.ffffffffffffffffp0L, -1.681051571556046753222468896957938166365e-4932L, -7.853981633974483095885557915077381101984e-1L, UNDERFLOW_EXCEPTION);
+# if LDBL_MANT_DIG >= 113
+  TEST_c_c (catanh, 0x1.0000000000000000000000000001p0L, 0x1p-16382L, 3.916281570163690998207361486238697614441e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1.0000000000000000000000000001p0L, -0x1p-16382L, 3.916281570163690998207361486238697614441e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000000000000000000001p0L, 0x1p-16382L, -3.916281570163690998207361486238697614441e1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, -0x1.0000000000000000000000000001p0L, -0x1p-16382L, -3.916281570163690998207361486238697614441e1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (catanh, 0x1p-16382L, 0x1.0000000000000000000000000001p0L, 1.681051571556046753131338908660875977540e-4932L, 7.853981633974483096156608458198758173458e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, 0x1.0000000000000000000000000001p0L, -1.681051571556046753131338908660875977540e-4932L, 7.853981633974483096156608458198758173458e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, 0x1p-16382L, -0x1.0000000000000000000000000001p0L, 1.681051571556046753131338908660875977540e-4932L, -7.853981633974483096156608458198758173458e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, -0x1.0000000000000000000000000001p0L, -1.681051571556046753131338908660875977540e-4932L, -7.853981633974483096156608458198758173458e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffffffffffffff8p0L, 0x1p-16382L, 3.950938929191688263678223092311606435623e1L, 1.745703758805099310527547423749501866998e-4898L);
+  TEST_c_c (catanh, 0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-16382L, 3.950938929191688263678223092311606435623e1L, -1.745703758805099310527547423749501866998e-4898L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffffffffffffff8p0L, 0x1p-16382L, -3.950938929191688263678223092311606435623e1L, 1.745703758805099310527547423749501866998e-4898L);
+  TEST_c_c (catanh, -0x0.ffffffffffffffffffffffffffff8p0L, -0x1p-16382L, -3.950938929191688263678223092311606435623e1L, -1.745703758805099310527547423749501866998e-4898L);
+  TEST_c_c (catanh, 0x1p-16382L, 0x0.ffffffffffffffffffffffffffff8p0L, 1.681051571556046753131338908660876463178e-4932L, 7.853981633974483096156608458198756729010e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, 0x0.ffffffffffffffffffffffffffff8p0L, -1.681051571556046753131338908660876463178e-4932L, 7.853981633974483096156608458198756729010e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, 0x1p-16382L, -0x0.ffffffffffffffffffffffffffff8p0L, 1.681051571556046753131338908660876463178e-4932L, -7.853981633974483096156608458198756729010e-1L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (catanh, -0x1p-16382L, -0x0.ffffffffffffffffffffffffffff8p0L, -1.681051571556046753131338908660876463178e-4932L, -7.853981633974483096156608458198756729010e-1L, UNDERFLOW_EXCEPTION);
+# endif
+#endif
 
   TEST_c_c (catanh, 0.75L, 1.25L, 0.261492138795671927078652057366532140L, 0.996825126463918666098902241310446708L);
   TEST_c_c (catanh, -2, -3, -0.14694666622552975204743278515471595L, -1.3389725222944935611241935759091443L);