libjava/java/lang/natMath.cc

   1 /* Copyright (C) 1998, 1999, 2000, 2002  Free Software Foundation
   2
   3    This file is part of libgcj.
   4
   5 This software is copyrighted work licensed under the terms of the
   6 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   7 details.  */
   8
   9 /**
  10  * @author Andrew Haley <aph@cygnus.com>
  11  * @date Tue Sep 22 1998 */
  12 /* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
  13  * "The Java Language Specification", ISBN 0-201-63451-1
  14  * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
  15  * Status:  Believed complete and correct.
  16  */
  17
  18 #include <config.h>
  19
  20 #include <java/lang/String.h>
  21 #include <java/lang/Float.h>
  22 #include <java/lang/Double.h>
  23 #include <java/lang/Integer.h>
  24 #include <java/lang/Long.h>
  25 #include <java/lang/Math.h>
  26 #include <gcj/array.h>
  27
  28 #include "fdlibm.h"
  29
  30 jdouble java::lang::Math::cos(jdouble x)
  31 {
  32   return (jdouble)::cos((double)x);
  33 }
  34
  35 jdouble java::lang::Math::sin(jdouble x)
  36 {
  37   return (jdouble)::sin((double)x);
  38 }
  39
  40 jdouble java::lang::Math::tan(jdouble x)
  41 {
  42   return (jdouble)::tan((double)x);
  43 }
  44
  45 jdouble java::lang::Math::asin(jdouble x)
  46 {
  47   return (jdouble)::asin((double)x);
  48 }
  49
  50 jdouble java::lang::Math::acos(jdouble x)
  51 {
  52   return (jdouble)::acos((double)x);
  53 }
  54
  55 jdouble java::lang::Math::atan(jdouble x)
  56 {
  57   return (jdouble)::atan((double)x);
  58 }
  59
  60 jdouble java::lang::Math::atan2(jdouble y, jdouble x)
  61 {
  62   return (jdouble)::atan2((double)y, (double)x);
  63 }
  64
  65 jdouble java::lang::Math::log(jdouble x)
  66 {
  67   return (jdouble)::log((double)x);
  68 }
  69
  70 jdouble java::lang::Math::exp(jdouble x)
  71 {
  72   return (jdouble)::exp((double)x);
  73 }
  74
  75 jdouble java::lang::Math::sqrt(jdouble x)
  76 {
  77   return (jdouble)::sqrt((double)x);
  78 }
  79
  80 jdouble java::lang::Math::pow(jdouble y, jdouble x)
  81 {
  82   return (jdouble)::pow((double)y, (double)x);
  83 }
  84
  85 jdouble java::lang::Math::IEEEremainder(jdouble y, jdouble x)
  86 {
  87   return (jdouble)::__ieee754_remainder((double)y, (double)x);
  88 }
  89
  90 jdouble java::lang::Math::rint(jdouble x)
  91 {
  92   return (jdouble)::rint((double)x);
  93 }
  94
  95 jdouble java::lang::Math::floor(jdouble x)
  96 {
  97   return (jdouble)::floor((double)x);
  98 }
  99
 100 jdouble java::lang::Math::ceil(jdouble x)
 101 {
 102   return (jdouble)::ceil((double)x);
 103 }
 104
 105 static inline int
 106 floatToIntBits (jfloat value)
 107 {
 108   union {
 109     jint l;
 110     jfloat d;
 111   } u;
 112   u.d = value;
 113   return u.l;
 114 }
 115
 116 static inline bool
 117 isNaN (jint bits)
 118 {
 119   jint e = bits & 0x7f800000;
 120   jint f = bits & 0x007fffff;
 121
 122   return e == 0x7f800000 && f != 0;
 123 }
 124
 125 static inline jlong
 126 doubleToLongBits (jdouble value)
 127 {
 128   union {
 129     jlong l;
 130     jdouble d;
 131   } u;
 132   u.d = value;
 133   return u.l;
 134 }
 135
 136 static inline bool
 137 isNaN (jlong bits)
 138 {
 139   jlong e = bits & 0x7ff0000000000000LL;
 140   jlong f = bits & 0x000fffffffffffffLL;
 141
 142   return e == 0x7ff0000000000000LL && f != 0LL;
 143 }
 144