1 files changed, 86 insertions, 0 deletions
diff --git a/usr/src/libm/src/complex/cexpl.c b/usr/src/libm/src/complex/cexpl.c
new file mode 100644
index 0000000..e311c6a
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+++ b/usr/src/libm/src/complex/cexpl.c
@@ -0,0 +1,86 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"@(#)cexpl.c	1.3	06/01/31 SMI"
+
+#pragma weak cexpl = __cexpl
+
+#include "libm.h"		/* expl/isinfl/iszerol/scalbnl/sincosl */
+#include "complex_wrapper.h"
+
+/* INDENT OFF */
+static const long double zero = 0.0L;
+/* INDENT ON */
+
+ldcomplex
+cexpl(ldcomplex z) {
+	ldcomplex ans;
+	long double x, y, t, c, s;
+	int n, ix, iy, hx, hy;
+
+	x = LD_RE(z);
+	y = LD_IM(z);
+	hx = HI_XWORD(x);
+	hy = HI_XWORD(y);
+	ix = hx & 0x7fffffff;
+	iy = hy & 0x7fffffff;
+	if (iszerol(y)) {	/* y = 0 */
+		LD_RE(ans) = expl(x);
+		LD_IM(ans) = y;
+	} else if (isinfl(x)) {	/* x is +-inf */
+		if (hx < 0) {
+			if (iy >= 0x7fff0000) {
+				LD_RE(ans) = zero;
+				LD_IM(ans) = zero;
+			} else {
+				sincosl(y, &s, &c);
+				LD_RE(ans) = zero * c;
+				LD_IM(ans) = zero * s;
+			}
+		} else {
+			if (iy >= 0x7fff0000) {
+				LD_RE(ans) = x;
+				LD_IM(ans) = y - y;
+			} else {
+				(void) sincosl(y, &s, &c);
+				LD_RE(ans) = x * c;
+				LD_IM(ans) = x * s;
+			}
+		}
+	} else {
+		(void) sincosl(y, &s, &c);
+		if (ix >= 0x400C62E4) {	/* |x| > 11356.52... ~ log(2**16384) */
+			t = __k_cexpl(x, &n);
+			LD_RE(ans) = scalbnl(t * c, n);
+			LD_IM(ans) = scalbnl(t * s, n);
+		} else {
+			t = expl(x);
+			LD_RE(ans) = t * c;
+			LD_IM(ans) = t * s;
+		}
+	}
+	return (ans);
+}