glibc/math
2013-05-22 11:49:36 +00:00
..
bits New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 2013-04-02 13:51:02 +02:00
machine Update. 1999-07-14 00:54:57 +00:00
atest-exp2.c De-stringify constants in math/atest-exp2.c. 2013-05-16 06:34:01 -07:00
atest-exp.c Fix some testsuite build warning fixes in libm 2013-02-19 21:20:44 +05:30
atest-sincos.c Fix some testsuite build warning fixes in libm 2013-02-19 21:20:44 +05:30
basic-test.c New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 2013-04-02 13:51:02 +02:00
bug-nextafter.c math: support platforms with limited FP rounding or exception support 2012-05-17 08:50:41 -04:00
bug-nexttoward.c math: support platforms with limited FP rounding or exception support 2012-05-17 08:50:41 -04:00
bug-tgmath1.c Update. 2004-05-07 02:14:18 +00:00
cabs.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cabsf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cabsl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
carg.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cargf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cargl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cimag.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cimagf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
cimagl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
complex.h Don't disable CMPLXL macro for __NO_LONG_DOUBLE_MATH (bug 15488). 2013-05-18 12:12:38 +00:00
conj.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
conjf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
conjl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
creal.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
crealf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
creall.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
divtc3.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_acoshl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_acosl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_asinl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_atan2l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_atanhl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_coshl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_exp2l.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_exp10.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_exp10f.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_exp10l.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_expl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_fmodl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_gammal_r.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_hypotl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_j0l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_j1l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_jnl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_lgammal_r.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_log2l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_log10l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_logl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_powl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_rem_pio2l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_scalb.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_scalbf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_scalbl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
e_sinhl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
e_sqrtl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
fclrexcpt.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fedisblxcpt.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
feenablxcpt.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fegetenv.c Remove bp-sym.h and BP_SYM uses from C code. 2013-02-14 13:12:02 +00:00
fegetexcept.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fegetround.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
feholdexcpt.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fenv.h Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fesetenv.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fesetround.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
feupdateenv.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fgetexcptflg.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fpu_control.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fraiseexcpt.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
fsetexcptflg.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
ftestexcept.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
gen-libm-test.pl Don't include expected results in libm-test test names. 2013-05-22 11:49:36 +00:00
ieee-math.c * hurd/hurdinit.c (map0): Remove [!PIC] conditional. 1996-06-16 09:31:23 +00:00
k_casinh.c Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357). 2013-03-30 13:31:53 +00:00
k_casinhf.c Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357). 2013-03-30 13:31:53 +00:00
k_casinhl.c Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357). 2013-03-30 13:31:53 +00:00
k_cosl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
k_rem_pio2l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
k_sincosl.c Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
k_sinl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
k_tanl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
libm-test.inc Handle sincos with generic libm-test logic. 2013-05-19 14:45:41 +00:00
Makefile Improve tgamma accuracy (bugs 2546, 2560, 5159, 15426). 2013-05-08 11:58:18 +00:00
math.h New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 2013-04-02 13:51:02 +02:00
multc3.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
README.libm-test Handle sincos with generic libm-test logic. 2013-05-19 14:45:41 +00:00
s_asinhl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
s_atanl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
s_cacos.c Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
s_cacosf.c Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
s_cacosh.c Fix cacosh inaccuracy and spurious exceptions (bug 15327). 2013-04-02 22:54:00 +00:00
s_cacoshf.c Fix cacosh inaccuracy and spurious exceptions (bug 15327). 2013-04-02 22:54:00 +00:00
s_cacoshl.c Fix cacosh inaccuracy and spurious exceptions (bug 15327). 2013-04-02 22:54:00 +00:00
s_cacosl.c Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
s_casin.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_casinf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_casinh.c Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
s_casinhf.c Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
s_casinhl.c Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
s_casinl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_catan.c Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
s_catanf.c Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
s_catanh.c Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
s_catanhf.c Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
s_catanhl.c Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
s_catanl.c Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
s_cbrtl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
s_ccos.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ccosf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ccosh.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_ccoshf.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_ccoshl.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_ccosl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cexp.c Fix missing underflow from cexp (bug 14478). 2013-04-03 16:51:46 +00:00
s_cexpf.c Fix missing underflow from cexp (bug 14478). 2013-04-03 16:51:46 +00:00
s_cexpl.c Fix missing underflow from cexp (bug 14478). 2013-04-03 16:51:46 +00:00
s_clog10.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_clog10f.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_clog10l.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_clog.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_clogf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_clogl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cpow.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cpowf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cpowl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cproj.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cprojf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_cprojl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_csin.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_csinf.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_csinh.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_csinhf.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_csinhl.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_csinl.c Fix csin, csinh, ccos, ccosh missing underflows (bug 15405). 2013-04-26 19:25:19 +00:00
s_csqrt.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_csqrtf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_csqrtl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ctan.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ctanf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ctanh.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ctanhf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ctanhl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ctanl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_erfl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
s_expm1l.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
s_fdim.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fdimf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fdiml.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fma.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fmaf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fmal.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fmax.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fmaxf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fmaxl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fmin.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fminf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_fminl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_ldexp.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_ldexpf.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_ldexpl.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_log1pl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
s_nan.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_nanf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_nanl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
s_nextafter.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_nexttowardf.c Fix nexttoward bugs (bugs 2550, 2570). 2012-05-01 15:37:43 +00:00
s_nexttowardl.c Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
s_significand.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_significandf.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_significandl.c Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
s_tanhl.c [BZ #157] Remove include/stub-tag.h for good. 2012-11-04 19:59:40 +01:00
setfpucw.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
t_sincosl.c Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
test-double.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-fenv.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-float.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-fpucw.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-idouble.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-ifloat.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-ildoubl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-ldouble.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-matherr.c Update. 1997-06-26 00:09:27 +00:00
test-misc.c Better distinguish between NaN/qNaN/sNaN. 2013-03-15 19:06:02 +01:00
test-powl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-snan.c New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 2013-04-02 13:51:02 +02:00
test-tgmath2.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-tgmath-int.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-tgmath-ret.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
test-tgmath.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
tgmath.h Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
tst-CMPLX2.c Don't disable CMPLXL macro for __NO_LONG_DOUBLE_MATH (bug 15488). 2013-05-18 12:12:38 +00:00
tst-CMPLX.c Don't disable CMPLXL macro for __NO_LONG_DOUBLE_MATH (bug 15488). 2013-05-18 12:12:38 +00:00
tst-definitions.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Versions New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 2013-04-02 13:51:02 +02:00
w_acos.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_acosf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_acosh.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_acoshf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_acoshl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_acosl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_asin.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_asinf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_asinl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_atan2.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_atan2f.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_atan2l.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_atanh.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_atanhf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_atanhl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_cosh.c Optimize libm 2011-10-12 11:27:51 -04:00
w_coshf.c Optimize libm 2011-10-12 11:27:51 -04:00
w_coshl.c Avoid overflows from long double functions using __kernel_standard. 2012-03-28 09:32:12 +00:00
w_drem.c Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
w_dremf.c Use private math_private.h in files in math/ 2011-10-08 05:16:04 -04:00
w_dreml.c Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
w_exp2.c Fix missing exp2 overflow exception (bug 13871). 2012-03-21 12:17:26 +00:00
w_exp2f.c Fix missing exp2 overflow exception (bug 13871). 2012-03-21 12:17:26 +00:00
w_exp2l.c Avoid overflows from long double functions using __kernel_standard. 2012-03-28 09:32:12 +00:00
w_exp10.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_exp10f.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_exp10l.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_expl.c Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
w_fmod.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_fmodf.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_fmodl.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
w_hypot.c Optimize libm 2011-10-12 11:27:51 -04:00
w_hypotf.c Optimize libm 2011-10-12 11:27:51 -04:00
w_hypotl.c Avoid overflows from long double functions using __kernel_standard. 2012-03-28 09:32:12 +00:00
w_ilogb.c Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
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README for libm-test math test suite
====================================

The libm-test math test suite tests a number of function points of
math functions in the GNU C library.  The following sections contain a
brief overview.  Please note that the test drivers and the Perl script
"gen-libm-test.pl" have some options.  A full list of options is
available with --help (for the test drivers) and -h for
"gen-libm-test.pl".


What is tested?
===============
The tests just evaluate the functions at specified points and compare
the results with precomputed values and the requirements of the ISO
C99 standard.

Besides testing the special values mandated by IEEE 754 (infinities,
NaNs and minus zero), some more or less random values are tested.

Files that are part of libm-test
================================

The main file is "libm-test.inc".  It is platform and floating point
format independent.  The file must be preprocessed by the Perl script
"gen-libm-test.pl".  The results are "libm-test.c" and a file
"libm-test-ulps.h" with platform specific deltas.

The test drivers test-double.c, test-float.c, test-ldouble.c test the
normal double, float and long double implementation of libm.  The test
drivers with an i in it (test-idouble.c, test-ifloat.c,
test-ildoubl.c) test the corresponding inline functions (where
available - otherwise they also test the real functions in libm).

"gen-libm-test.pl" needs a platform specific files with ULPs (Units of
Last Precision).  The file is called "libm-test-ulps" and lives in
platform specific sysdep directory.

How can I generate "libm-test-ulps"?
====================================

To automatically generate a new "libm-test-ulps" run "make regen-ulps".
This generates the file "math/NewUlps" in the build directory.  The file
contains the sorted results of all the tests.  You can use the "NewUlps"
file as the machine's updated "libm-test-ulps" file.  Copy "NewUlps" to
"libm-test-ulps" in the appropriate machine sysdep directory.  Verify
the changes, post your patch, and check it in after review.

To manually generate a new "libm-test-ulps" file, first remove "ULPs"
file in the current directory, then you can execute for example:
    ./testrun.sh math/test-double -u --ignore-max-ulp=yes
This generates a file "ULPs" with all double ULPs in it, ignoring any
previously calculated ULPs, and running with the newly built dynamic
loader and math library (assumes you didn't install your build).  Now
generate the ULPs for all other formats, the tests will be appending the
data to the "ULPs" file.  As final step run "gen-libm-test.pl" with the
file as input and ask to generate a pretty printed output in the file
"NewUlps":
  gen-libm-test.pl -u ULPs -n
Copy "NewUlps" to "libm-test-ulps" in the appropriate machine sysdep
directory.

Note that the test drivers have an option "-u" to output an unsorted
list of all epsilons that the functions have.  The output can be read
in directly but it's better to pretty print it first.
"gen-libm-test.pl" has an option to generate a pretty-printed and
sorted new ULPs file from the output of the test drivers.

Contents of libm-test-ulps
==========================
Since libm-test-ulps can be generated automatically, just a few
notes.  The file contains lines for single tests, like:
Test "cos (pi/2) == 0":
float:  1

and lines for maximal errors of single functions, like:
Function "yn":
idouble:  6.0000

The keywords are float, ifloat, double, idouble, ldouble and ildouble
(the prefix i stands for inline).

Adding tests to libm-test.inc
=============================

The tests are evaluated by a set of special test macros.  The macros
start with "TEST_" followed by a specification the input values, an
underscore and a specification of the output values.  As an example,
the test macro for a function with input of type FLOAT (FLOAT is
either float, double, long double) and output of type FLOAT is
"TEST_f_f".  The macro's parameter are the name of the function, the
input parameter, output parameter and optionally one exception
parameter.

The accepted parameter types are:
- "f" for FLOAT
- "b" for boolean - just tests if the output parameter evaluates to 0
  or 1 (only for output).
- "c" for complex.  This parameter needs two values, first the real,
  then the imaginary part.
- "i" for int.
- "l" for long int.
- "L" for long long int.
- "F" for the address of a FLOAT (only as input parameter)
- "I" for the address of an int (only as input parameter)