float_fudge.h

00001 /*
00002  * SpanDSP - a series of DSP components for telephony
00003  *
00004  * float_fudge.h - A bunch of shims, to use double maths
00005  *                 functions on platforms which lack the
00006  *                 float versions with an 'f' at the end.
00007  *
00008  * Written by Steve Underwood <steveu@coppice.org>
00009  *
00010  * Copyright (C) 2004 Steve Underwood
00011  *
00012  * All rights reserved.
00013  *
00014  * This program is free software; you can redistribute it and/or modify
00015  * it under the terms of the GNU General Public License version 2, as
00016  * published by the Free Software Foundation.
00017  *
00018  * This program is distributed in the hope that it will be useful,
00019  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00020  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00021  * GNU General Public License for more details.
00022  *
00023  * You should have received a copy of the GNU General Public License
00024  * along with this program; if not, write to the Free Software
00025  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00026  *
00027  * $Id: float_fudge.h,v 1.2 2007/08/13 11:35:32 steveu Exp $
00028  */
00029 
00030 #if !defined(_FLOAT_FUDGE_H_)
00031 #define _FLOAT_FUDGE_H_
00032 
00033 #if defined(__USE_DOUBLE_MATH__)
00034 
00035 #if defined(__cplusplus)
00036 extern "C"
00037 {
00038 #endif
00039 
00040 static __inline__ float sinf(float x)
00041 {
00042         return (float) sin((double) x);
00043 }
00044 
00045 static __inline__ float cosf(float x)
00046 {
00047         return (float) cos((double) x);
00048 }
00049 
00050 static __inline__ float tanf(float x)
00051 {
00052         return (float) tan((double) x);
00053 }
00054 
00055 static __inline__ float asinf(float x)
00056 {
00057         return (float) asin((double) x);
00058 }
00059 
00060 static __inline__ float acosf(float x)
00061 {
00062         return (float) acos((double) x);
00063 }
00064 
00065 static __inline__ float atanf(float x)
00066 {
00067         return (float) atan((double) x);
00068 }
00069 
00070 static __inline__ float atan2f(float y, float x)
00071 {
00072         return (float) atan2((double) y, (double) x);
00073 }
00074 
00075 static __inline__ float ceilf(float x)
00076 {
00077         return (float) ceil((double) x);
00078 }
00079 
00080 static __inline__ float floorf(float x)
00081 {
00082         return (float) floor((double) x);
00083 }
00084 
00085 static __inline__ float expf(float x)
00086 {
00087     return (float) expf((double) x);
00088 }
00089 
00090 static __inline__ float logf(float x)
00091 {
00092         return (float) logf((double) x);
00093 }
00094 
00095 static __inline__ float log10f(float x)
00096 {
00097     return (float) log10((double) x);
00098 }
00099 
00100 static __inline__ float powf(float x, float y)
00101 {
00102     return (float) pow((double) x, (double) y);
00103 }
00104 
00105 static __inline__ int rintf(float x)
00106 {
00107         return (int) rint((double) x);
00108 }
00109 
00110 static __inline__ long int lrintf(float x)
00111 {
00112     return (long int) lrint((double) x);
00113 }
00114 
00115 #if defined(__cplusplus)
00116 }
00117 #endif
00118 
00119 #endif
00120 
00121 #endif
00122 
00123 /*- End of file ------------------------------------------------------------*/

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