diff options
80 files changed, 725 insertions, 12 deletions
@@ -26,7 +26,7 @@ Major new features: functions for float, double, long double, _FloatN and _FloatNx, and a type-generic macro in <tgmath.h>. - - Logarithmic functions: log2p1. + - Logarithmic functions: log2p1, logp1. * A new tunable, glibc.rtld.enable_secure, used to run a program as if it were a setuid process. This is currently a testing tool to allow diff --git a/manual/math.texi b/manual/math.texi index c99501ccb1..56f2295cfd 100644 --- a/manual/math.texi +++ b/manual/math.texi @@ -745,13 +745,25 @@ to subtraction of two numbers that are nearly equal. @deftypefunx {long double} log1pl (long double @var{x}) @deftypefunx _FloatN log1pfN (_Float@var{N} @var{x}) @deftypefunx _FloatNx log1pfNx (_Float@var{N}x @var{x}) +@deftypefunx double logp1 (double @var{x}) +@deftypefunx float logp1f (float @var{x}) +@deftypefunx {long double} logp1l (long double @var{x}) +@deftypefunx _FloatN logp1fN (_Float@var{N} @var{x}) +@deftypefunx _FloatNx logp1fNx (_Float@var{N}x @var{x}) @standards{ISO, math.h} @standardsx{log1pfN, TS 18661-3:2015, math.h} @standardsx{log1pfNx, TS 18661-3:2015, math.h} +@standardsx{logp1, TS 18661-4:2015, math.h} +@standardsx{logp1f, TS 18661-4:2015, math.h} +@standardsx{logp1l, TS 18661-4:2015, math.h} +@standardsx{logp1fN, TS 18661-4:2015, math.h} +@standardsx{logp1fNx, TS 18661-4:2015, math.h} @safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} These functions return a value equivalent to @w{@code{log (1 + @var{x})}}. They are computed in a way that is accurate even if @var{x} is near zero. + +The @code{logp1} names for these functions are from TS 18661-4:2015. @end deftypefun @deftypefun double log2p1 (double @var{x}) diff --git a/math/Makefile b/math/Makefile index 58e5c070cf..c55976cba8 100644 --- a/math/Makefile +++ b/math/Makefile @@ -966,6 +966,7 @@ tgmath3-macros = \ log2 \ log2p1 \ logb \ + logp1 \ lrint \ lround \ nearbyint \ @@ -1145,7 +1146,7 @@ $(foreach t,$(libm-tests-vector),$(objpfx)$(t).c): $(objpfx)test-%.c: type_func=$*; \ type=$${type_func%-*}; \ func=$${type_func##*-}; \ - func_args=$$(grep ALL_RM_TEST libm-test-$$func.inc \ + func_args=$$(grep "ALL_RM_TEST ($$func," libm-test-$$func.inc \ | sed 's/.*RUN_TEST_LOOP_//;s/_.*//'); \ ( \ echo "#include <test-$$type.h>"; \ @@ -1375,7 +1376,7 @@ CFLAGS-s_llrint.c += -fno-builtin-llrintl CFLAGS-s_llround.c += -fno-builtin-llroundl CFLAGS-e_log.c += -fno-builtin-logl CFLAGS-w_log10.c += -fno-builtin-log10l -CFLAGS-w_log1p.c += -fno-builtin-log1pl +CFLAGS-w_log1p.c += -fno-builtin-log1pl -fno-builtin-logp1l CFLAGS-e_log2.c += -fno-builtin-log2l CFLAGS-s_log2p1.c += -fno-builtin-log2p1l CFLAGS-s_logb.c += -fno-builtin-logbl @@ -1501,7 +1502,7 @@ CFLAGS-s_llrint.c += -fno-builtin-llrintf32x -fno-builtin-llrintf64 CFLAGS-s_llround.c += -fno-builtin-llroundf32x -fno-builtin-llroundf64 CFLAGS-e_log.c += -fno-builtin-logf32x -fno-builtin-logf64 CFLAGS-w_log10.c += -fno-builtin-log10f32x -fno-builtin-log10f64 -CFLAGS-w_log1p.c += -fno-builtin-log1pf32x -fno-builtin-log1pf64 +CFLAGS-w_log1p.c += -fno-builtin-log1pf32x -fno-builtin-log1pf64 -fno-builtin-logp1f32x -fno-builtin-logp1f64 CFLAGS-e_log2.c += -fno-builtin-log2f32x -fno-builtin-log2f64 CFLAGS-s_log2p1.c += -fno-builtin-log2p1f32x -fno-builtin-log2p1f64 CFLAGS-s_logb.c += -fno-builtin-logbf32x -fno-builtin-logbf64 @@ -1616,7 +1617,7 @@ CFLAGS-s_llrintf.c += -fno-builtin-llrintf32 CFLAGS-s_llroundf.c += -fno-builtin-llroundf32 CFLAGS-e_logf.c += -fno-builtin-logf32 CFLAGS-w_log10f.c += -fno-builtin-log10f32 -CFLAGS-w_log1pf.c += -fno-builtin-log1pf32 +CFLAGS-w_log1pf.c += -fno-builtin-log1pf32 -fno-builtin-logp1f32 CFLAGS-e_log2f.c += -fno-builtin-log2f32 CFLAGS-s_log2p1f.c += -fno-builtin-log2p1f32 CFLAGS-s_logbf.c += -fno-builtin-logbf32 diff --git a/math/Versions b/math/Versions index 46b9b87010..f6ddd2f4f7 100644 --- a/ |