s_sin.c (151620) | s_sin.c (176360) |
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1/* @(#)s_sin.c 5.1 93/09/24 */ 2/* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13#ifndef lint | 1/* @(#)s_sin.c 5.1 93/09/24 */ 2/* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13#ifndef lint |
14static char rcsid[] = "$FreeBSD: head/lib/msun/src/s_sin.c 151620 2005-10-24 14:08:36Z bde $"; | 14static char rcsid[] = "$FreeBSD: head/lib/msun/src/s_sin.c 176360 2008-02-17 07:33:12Z das $"; |
15#endif 16 17/* sin(x) 18 * Return sine function of x. 19 * 20 * kernel function: 21 * __kernel_sin ... sine function on [-pi/4,pi/4] 22 * __kernel_cos ... cose function on [-pi/4,pi/4] --- 17 unchanged lines hidden (view full) --- 40 * Let trig be any of sin, cos, or tan. 41 * trig(+-INF) is NaN, with signals; 42 * trig(NaN) is that NaN; 43 * 44 * Accuracy: 45 * TRIG(x) returns trig(x) nearly rounded 46 */ 47 | 15#endif 16 17/* sin(x) 18 * Return sine function of x. 19 * 20 * kernel function: 21 * __kernel_sin ... sine function on [-pi/4,pi/4] 22 * __kernel_cos ... cose function on [-pi/4,pi/4] --- 17 unchanged lines hidden (view full) --- 40 * Let trig be any of sin, cos, or tan. 41 * trig(+-INF) is NaN, with signals; 42 * trig(NaN) is that NaN; 43 * 44 * Accuracy: 45 * TRIG(x) returns trig(x) nearly rounded 46 */ 47 |
48#include <float.h> 49 |
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48#include "math.h" 49#include "math_private.h" 50 51double 52sin(double x) 53{ 54 double y[2],z=0.0; 55 int32_t n, ix; --- 19 unchanged lines hidden (view full) --- 75 case 0: return __kernel_sin(y[0],y[1],1); 76 case 1: return __kernel_cos(y[0],y[1]); 77 case 2: return -__kernel_sin(y[0],y[1],1); 78 default: 79 return -__kernel_cos(y[0],y[1]); 80 } 81 } 82} | 50#include "math.h" 51#include "math_private.h" 52 53double 54sin(double x) 55{ 56 double y[2],z=0.0; 57 int32_t n, ix; --- 19 unchanged lines hidden (view full) --- 77 case 0: return __kernel_sin(y[0],y[1],1); 78 case 1: return __kernel_cos(y[0],y[1]); 79 case 2: return -__kernel_sin(y[0],y[1],1); 80 default: 81 return -__kernel_cos(y[0],y[1]); 82 } 83 } 84} |
85 86#if (LDBL_MANT_DIG == 53) 87__weak_reference(sin, sinl); 88#endif |
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