diff options
Diffstat (limited to 'main/libc0.9.32/0015-libm-implement-generic-cexp-cexpf-and-cexpl.patch')
| -rw-r--r-- | main/libc0.9.32/0015-libm-implement-generic-cexp-cexpf-and-cexpl.patch | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/main/libc0.9.32/0015-libm-implement-generic-cexp-cexpf-and-cexpl.patch b/main/libc0.9.32/0015-libm-implement-generic-cexp-cexpf-and-cexpl.patch new file mode 100644 index 0000000000..1ac2316580 --- /dev/null +++ b/main/libc0.9.32/0015-libm-implement-generic-cexp-cexpf-and-cexpl.patch @@ -0,0 +1,103 @@ +From bf95401faf3ec57b5f45ada41dc219f6d04770ae Mon Sep 17 00:00:00 2001 +From: William Pitcock <nenolod@dereferenced.org> +Date: Tue, 1 Nov 2011 18:41:30 -0500 +Subject: [PATCH] libm: implement generic cexp(), cexpf() and cexpl(). + +The cexp*() family of functions is defined by the C99 math standard as +implementing exponential functions for complex types. + +Signed-off-by: William Pitcock <nenolod@dereferenced.org> +Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> +(cherry picked from commit 6471fc450b66dcb1ba16fe6568cd52221ca64cd1) +--- + libm/Makefile.in | 3 +- + libm/cexp.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 65 insertions(+), 1 deletions(-) + create mode 100644 libm/cexp.c + +diff --git a/libm/Makefile.in b/libm/Makefile.in +index f0aaa2a..af949e8 100644 +--- a/libm/Makefile.in ++++ b/libm/Makefile.in +@@ -72,7 +72,8 @@ libm_CSRC := \ + s_fpclassify.c s_fpclassifyf.c s_signbit.c s_signbitf.c \ + s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \ + s_fdim.c s_fma.c s_fmax.c s_fmin.c \ +- s_remquo.c w_exp2.c ++ s_remquo.c w_exp2.c \ ++ cexp.c + + # Not implemented [yet?], see comment in float_wrappers.c: + # fdimf.o fmaf.o fmaxf.o fminf.o +diff --git a/libm/cexp.c b/libm/cexp.c +new file mode 100644 +index 0000000..87512b7 +--- /dev/null ++++ b/libm/cexp.c +@@ -0,0 +1,63 @@ ++/* ++ * Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org> ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ++ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE ++ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, ++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR ++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, ++ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING ++ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ++ * POSSIBILITY OF SUCH DAMAGE. ++ */ ++ ++#include <features.h> ++#include <math.h> ++#include <complex.h> ++ ++__complex__ double cexp(__complex__ double z) ++{ ++ __complex__ double ret; ++ double r_exponent = exp(__real__ z); ++ ++ __real__ ret = r_exponent * cos(__imag__ z); ++ __imag__ ret = r_exponent * sin(__imag__ z); ++ ++ return ret; ++} ++libm_hidden_def(cexp) ++ ++libm_hidden_proto(cexpf) ++__complex__ float cexpf(__complex__ float z) ++{ ++ __complex__ float ret; ++ double r_exponent = exp(__real__ z); ++ ++ __real__ ret = r_exponent * cosf(__imag__ z); ++ __imag__ ret = r_exponent * sinf(__imag__ z); ++ ++ return ret; ++} ++libm_hidden_def(cexpf) ++ ++#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && !defined __NO_LONG_DOUBLE_MATH ++libm_hidden_proto(cexpl) ++__complex__ long double cexpl(__complex__ long double z) ++{ ++ __complex__ long double ret; ++ long double r_exponent = expl(__real__ z); ++ ++ __real__ ret = r_exponent * cosl(__imag__ z); ++ __imag__ ret = r_exponent * sinl(__imag__ z); ++ ++ return ret; ++} ++libm_hidden_def(cexpl) ++#endif +-- +1.7.8 + |