diff options
| -rw-r--r-- | libm/Makefile.in | 3 | ||||
| -rw-r--r-- | libm/cexp.c | 63 |
2 files changed, 65 insertions, 1 deletions
diff --git a/libm/Makefile.in b/libm/Makefile.in index f0aaa2aff..af949e82c 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 000000000..87512b7c5 --- /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 |