125c28e83SPiotr Jasiukajtis /* 225c28e83SPiotr Jasiukajtis * CDDL HEADER START 325c28e83SPiotr Jasiukajtis * 425c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 525c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 625c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 725c28e83SPiotr Jasiukajtis * 825c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 925c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 1025c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 1125c28e83SPiotr Jasiukajtis * and limitations under the License. 1225c28e83SPiotr Jasiukajtis * 1325c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 1425c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1525c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 1625c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 1725c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 1825c28e83SPiotr Jasiukajtis * 1925c28e83SPiotr Jasiukajtis * CDDL HEADER END 2025c28e83SPiotr Jasiukajtis */ 2125c28e83SPiotr Jasiukajtis 2225c28e83SPiotr Jasiukajtis /* 2325c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2425c28e83SPiotr Jasiukajtis */ 2525c28e83SPiotr Jasiukajtis /* 2625c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 2725c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2825c28e83SPiotr Jasiukajtis */ 2925c28e83SPiotr Jasiukajtis 30*ddc0e0b5SRichard Lowe #pragma weak __cexpl = cexpl 3125c28e83SPiotr Jasiukajtis 3225c28e83SPiotr Jasiukajtis #include "libm.h" /* expl/isinfl/iszerol/scalbnl/sincosl */ 3325c28e83SPiotr Jasiukajtis #include "complex_wrapper.h" 3425c28e83SPiotr Jasiukajtis 3525c28e83SPiotr Jasiukajtis extern int isinfl(long double); 3625c28e83SPiotr Jasiukajtis extern int iszerol(long double); 3725c28e83SPiotr Jasiukajtis 3825c28e83SPiotr Jasiukajtis /* INDENT OFF */ 3925c28e83SPiotr Jasiukajtis static const long double zero = 0.0L; 4025c28e83SPiotr Jasiukajtis /* INDENT ON */ 4125c28e83SPiotr Jasiukajtis 4225c28e83SPiotr Jasiukajtis ldcomplex 4325c28e83SPiotr Jasiukajtis cexpl(ldcomplex z) { 4425c28e83SPiotr Jasiukajtis ldcomplex ans; 4525c28e83SPiotr Jasiukajtis long double x, y, t, c, s; 4625c28e83SPiotr Jasiukajtis int n, ix, iy, hx, hy; 4725c28e83SPiotr Jasiukajtis 4825c28e83SPiotr Jasiukajtis x = LD_RE(z); 4925c28e83SPiotr Jasiukajtis y = LD_IM(z); 5025c28e83SPiotr Jasiukajtis hx = HI_XWORD(x); 5125c28e83SPiotr Jasiukajtis hy = HI_XWORD(y); 5225c28e83SPiotr Jasiukajtis ix = hx & 0x7fffffff; 5325c28e83SPiotr Jasiukajtis iy = hy & 0x7fffffff; 5425c28e83SPiotr Jasiukajtis if (iszerol(y)) { /* y = 0 */ 5525c28e83SPiotr Jasiukajtis LD_RE(ans) = expl(x); 5625c28e83SPiotr Jasiukajtis LD_IM(ans) = y; 5725c28e83SPiotr Jasiukajtis } else if (isinfl(x)) { /* x is +-inf */ 5825c28e83SPiotr Jasiukajtis if (hx < 0) { 5925c28e83SPiotr Jasiukajtis if (iy >= 0x7fff0000) { 6025c28e83SPiotr Jasiukajtis LD_RE(ans) = zero; 6125c28e83SPiotr Jasiukajtis LD_IM(ans) = zero; 6225c28e83SPiotr Jasiukajtis } else { 6325c28e83SPiotr Jasiukajtis sincosl(y, &s, &c); 6425c28e83SPiotr Jasiukajtis LD_RE(ans) = zero * c; 6525c28e83SPiotr Jasiukajtis LD_IM(ans) = zero * s; 6625c28e83SPiotr Jasiukajtis } 6725c28e83SPiotr Jasiukajtis } else { 6825c28e83SPiotr Jasiukajtis if (iy >= 0x7fff0000) { 6925c28e83SPiotr Jasiukajtis LD_RE(ans) = x; 7025c28e83SPiotr Jasiukajtis LD_IM(ans) = y - y; 7125c28e83SPiotr Jasiukajtis } else { 7225c28e83SPiotr Jasiukajtis (void) sincosl(y, &s, &c); 7325c28e83SPiotr Jasiukajtis LD_RE(ans) = x * c; 7425c28e83SPiotr Jasiukajtis LD_IM(ans) = x * s; 7525c28e83SPiotr Jasiukajtis } 7625c28e83SPiotr Jasiukajtis } 7725c28e83SPiotr Jasiukajtis } else { 7825c28e83SPiotr Jasiukajtis (void) sincosl(y, &s, &c); 7925c28e83SPiotr Jasiukajtis if (ix >= 0x400C62E4) { /* |x| > 11356.52... ~ log(2**16384) */ 8025c28e83SPiotr Jasiukajtis t = __k_cexpl(x, &n); 8125c28e83SPiotr Jasiukajtis LD_RE(ans) = scalbnl(t * c, n); 8225c28e83SPiotr Jasiukajtis LD_IM(ans) = scalbnl(t * s, n); 8325c28e83SPiotr Jasiukajtis } else { 8425c28e83SPiotr Jasiukajtis t = expl(x); 8525c28e83SPiotr Jasiukajtis LD_RE(ans) = t * c; 8625c28e83SPiotr Jasiukajtis LD_IM(ans) = t * s; 8725c28e83SPiotr Jasiukajtis } 8825c28e83SPiotr Jasiukajtis } 8925c28e83SPiotr Jasiukajtis return (ans); 9025c28e83SPiotr Jasiukajtis } 91