| s_ctanhf.c (226600) | s_ctanhf.c (275819) |
|---|---|
| 1/*- 2 * Copyright (c) 2011 David Schultz 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 15 unchanged lines hidden (view full) --- 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27/* 28 * Hyperbolic tangent of a complex argument z. See s_ctanh.c for details. 29 */ 30 31#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2011 David Schultz 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 15 unchanged lines hidden (view full) --- 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27/* 28 * Hyperbolic tangent of a complex argument z. See s_ctanh.c for details. 29 */ 30 31#include <sys/cdefs.h> |
| 32__FBSDID("$FreeBSD: head/lib/msun/src/s_ctanhf.c 226600 2011-10-21 06:30:16Z das $"); | 32__FBSDID("$FreeBSD: head/lib/msun/src/s_ctanhf.c 275819 2014-12-16 09:21:56Z ed $"); |
| 33 34#include <complex.h> 35#include <math.h> 36 37#include "math_private.h" 38 39float complex 40ctanhf(float complex z) --- 5 unchanged lines hidden (view full) --- 46 x = crealf(z); 47 y = cimagf(z); 48 49 GET_FLOAT_WORD(hx, x); 50 ix = hx & 0x7fffffff; 51 52 if (ix >= 0x7f800000) { 53 if (ix & 0x7fffff) | 33 34#include <complex.h> 35#include <math.h> 36 37#include "math_private.h" 38 39float complex 40ctanhf(float complex z) --- 5 unchanged lines hidden (view full) --- 46 x = crealf(z); 47 y = cimagf(z); 48 49 GET_FLOAT_WORD(hx, x); 50 ix = hx & 0x7fffffff; 51 52 if (ix >= 0x7f800000) { 53 if (ix & 0x7fffff) |
| 54 return (cpackf(x, (y == 0 ? y : x * y))); | 54 return (CMPLXF(x, (y == 0 ? y : x * y))); |
| 55 SET_FLOAT_WORD(x, hx - 0x40000000); | 55 SET_FLOAT_WORD(x, hx - 0x40000000); |
| 56 return (cpackf(x, | 56 return (CMPLXF(x, |
| 57 copysignf(0, isinf(y) ? y : sinf(y) * cosf(y)))); 58 } 59 60 if (!isfinite(y)) | 57 copysignf(0, isinf(y) ? y : sinf(y) * cosf(y)))); 58 } 59 60 if (!isfinite(y)) |
| 61 return (cpackf(y - y, y - y)); | 61 return (CMPLXF(y - y, y - y)); |
| 62 63 if (ix >= 0x41300000) { /* x >= 11 */ 64 float exp_mx = expf(-fabsf(x)); | 62 63 if (ix >= 0x41300000) { /* x >= 11 */ 64 float exp_mx = expf(-fabsf(x)); |
| 65 return (cpackf(copysignf(1, x), | 65 return (CMPLXF(copysignf(1, x), |
| 66 4 * sinf(y) * cosf(y) * exp_mx * exp_mx)); 67 } 68 69 t = tanf(y); 70 beta = 1.0 + t * t; 71 s = sinhf(x); 72 rho = sqrtf(1 + s * s); 73 denom = 1 + beta * s * s; | 66 4 * sinf(y) * cosf(y) * exp_mx * exp_mx)); 67 } 68 69 t = tanf(y); 70 beta = 1.0 + t * t; 71 s = sinhf(x); 72 rho = sqrtf(1 + s * s); 73 denom = 1 + beta * s * s; |
| 74 return (cpackf((beta * rho * s) / denom, t / denom)); | 74 return (CMPLXF((beta * rho * s) / denom, t / denom)); |
| 75} 76 77float complex 78ctanf(float complex z) 79{ 80 | 75} 76 77float complex 78ctanf(float complex z) 79{ 80 |
| 81 z = ctanhf(cpackf(-cimagf(z), crealf(z))); 82 return (cpackf(cimagf(z), -crealf(z))); | 81 z = ctanhf(CMPLXF(-cimagf(z), crealf(z))); 82 return (CMPLXF(cimagf(z), -crealf(z))); |
| 83} 84 | 83} 84 |