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-rw-r--r--libm/cexp.c63
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diff --git a/libm/cexp.c b/libm/cexp.c
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+++ b/libm/cexp.c
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+/*
+ * 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