The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Native functions for java.lang.Math. |
| 5 | */ |
| 6 | #include "jni.h" |
| 7 | #include "JNIHelp.h" |
| 8 | |
| 9 | #include <stdlib.h> |
| 10 | #include <math.h> |
| 11 | |
| 12 | /* native public static double sin(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 13 | static jdouble jsin(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 14 | { |
| 15 | return sin(a); |
| 16 | } |
| 17 | |
| 18 | /* native public static double cos(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 19 | static jdouble jcos(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 20 | { |
| 21 | return cos(a); |
| 22 | } |
| 23 | |
| 24 | /* native public static double tan(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 25 | static jdouble jtan(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 26 | { |
| 27 | return tan(a); |
| 28 | } |
| 29 | |
| 30 | /* native public static double asin(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 31 | static jdouble jasin(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 32 | { |
| 33 | return asin(a); |
| 34 | } |
| 35 | |
| 36 | /* native public static double acos(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 37 | static jdouble jacos(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 38 | { |
| 39 | return acos(a); |
| 40 | } |
| 41 | |
| 42 | /* native public static double atan(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 43 | static jdouble jatan(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 44 | { |
| 45 | return atan(a); |
| 46 | } |
| 47 | |
| 48 | /* native public static double exp(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 49 | static jdouble jexp(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 50 | { |
| 51 | return exp(a); |
| 52 | } |
| 53 | |
| 54 | /* native public static double log(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 55 | static jdouble jlog(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 56 | { |
| 57 | return log(a); |
| 58 | } |
| 59 | |
| 60 | /* native public static double sqrt(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 61 | static jdouble jsqrt(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 62 | { |
| 63 | return sqrt(a); |
| 64 | } |
| 65 | |
| 66 | /* native public static double IEEEremainder(double a, double b); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 67 | static jdouble jieee_remainder(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a, jdouble b) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 68 | { |
| 69 | return remainder(a, b); |
| 70 | } |
| 71 | |
| 72 | /* native public static double floor(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 73 | static jdouble jfloor(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 74 | { |
| 75 | return floor(a); |
| 76 | } |
| 77 | |
| 78 | /* native public static double ceil(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 79 | static jdouble jceil(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 80 | { |
| 81 | return ceil(a); |
| 82 | } |
| 83 | |
| 84 | /* native public static double rint(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 85 | static jdouble jrint(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 86 | { |
| 87 | return rint(a); |
| 88 | } |
| 89 | |
| 90 | /* native public static double atan2(double a, double b); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 91 | static jdouble jatan2(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a, jdouble b) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 92 | { |
| 93 | return atan2(a, b); |
| 94 | } |
| 95 | |
| 96 | /* native public static double pow(double a, double b); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 97 | static jdouble jpow(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a, jdouble b) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 98 | { |
| 99 | return pow(a, b); |
| 100 | } |
| 101 | |
| 102 | /* native public static double sinh(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 103 | static jdouble jsinh(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 104 | { |
| 105 | return sinh(a); |
| 106 | } |
| 107 | |
| 108 | /* native public static double tanh(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 109 | static jdouble jtanh(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 110 | { |
| 111 | return tanh(a); |
| 112 | } |
| 113 | |
| 114 | /* native public static double cosh(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 115 | static jdouble jcosh(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 116 | { |
| 117 | return cosh(a); |
| 118 | } |
| 119 | |
| 120 | /* native public static double log10(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 121 | static jdouble jlog10(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 122 | { |
| 123 | return log10(a); |
| 124 | } |
| 125 | |
| 126 | /* native public static double cbrt(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 127 | static jdouble jcbrt(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 128 | { |
| 129 | return cbrt(a); |
| 130 | } |
| 131 | |
| 132 | /* native public static double expm1(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 133 | static jdouble jexpm1(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 134 | { |
| 135 | return expm1(a); |
| 136 | } |
| 137 | |
| 138 | /* native public static double hypot(double a, double b); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 139 | static jdouble jhypot(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a, jdouble b) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 140 | { |
| 141 | return hypot(a, b); |
| 142 | } |
| 143 | |
| 144 | /* native public static double log1p(double a); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 145 | static jdouble jlog1p(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 146 | { |
| 147 | return log1p(a); |
| 148 | } |
| 149 | |
| 150 | /* native public static double nextafter(double a, double b); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 151 | static jdouble jnextafter(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a, jdouble b) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 152 | { |
| 153 | return nextafter(a, b); |
| 154 | } |
| 155 | |
| 156 | /* native public static float nextafterf(float a, float b); */ |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 157 | static jfloat jnextafterf(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jfloat a, jfloat b) |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 158 | { |
| 159 | return nextafterf(a, b); |
| 160 | } |
| 161 | |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 162 | static jdouble copySign(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jdouble a, jdouble b) { |
Elliott Hughes | abd91e3 | 2010-03-29 15:20:01 -0700 | [diff] [blame] | 163 | // Our StrictMath.copySign delegates to Math.copySign, so we need to treat NaN as positive. |
| 164 | return copysign(a, isnan(b) ? 1.0 : b); |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 165 | } |
| 166 | |
Brian Carlstrom | 44e0e56 | 2010-05-06 23:44:16 -0700 | [diff] [blame^] | 167 | static jfloat copySign_f(JNIEnv* env __attribute__ ((unused)), jclass clazz __attribute__ ((unused)), jfloat a, jfloat b) { |
Elliott Hughes | abd91e3 | 2010-03-29 15:20:01 -0700 | [diff] [blame] | 168 | // Our StrictMath.copySign delegates to Math.copySign, so we need to treat NaN as positive. |
| 169 | return copysignf(a, isnan(b) ? 1.0 : b); |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 170 | } |
| 171 | |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 172 | static JNINativeMethod gMethods[] = { |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 173 | { "IEEEremainder", "(DD)D", jieee_remainder }, |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 174 | { "acos", "(D)D", jacos }, |
| 175 | { "asin", "(D)D", jasin }, |
| 176 | { "atan", "(D)D", jatan }, |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 177 | { "atan2", "(DD)D", jatan2 }, |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 178 | { "cbrt", "(D)D", jcbrt }, |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 179 | { "ceil", "(D)D", jceil }, |
| 180 | { "copySign", "(DD)D", copySign }, |
| 181 | { "copySign", "(FF)F", copySign_f }, |
| 182 | { "cos", "(D)D", jcos }, |
| 183 | { "cosh", "(D)D", jcosh }, |
| 184 | { "exp", "(D)D", jexp }, |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 185 | { "expm1", "(D)D", jexpm1 }, |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 186 | { "floor", "(D)D", jfloor }, |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 187 | { "hypot", "(DD)D", jhypot }, |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 188 | { "log", "(D)D", jlog }, |
| 189 | { "log10", "(D)D", jlog10 }, |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 190 | { "log1p", "(D)D", jlog1p }, |
| 191 | { "nextafter", "(DD)D", jnextafter }, |
| 192 | { "nextafterf", "(FF)F", jnextafterf }, |
Elliott Hughes | ace7e6f | 2010-03-26 23:23:38 -0700 | [diff] [blame] | 193 | { "pow", "(DD)D", jpow }, |
| 194 | { "rint", "(D)D", jrint }, |
| 195 | { "sin", "(D)D", jsin }, |
| 196 | { "sinh", "(D)D", jsinh }, |
| 197 | { "sqrt", "(D)D", jsqrt }, |
| 198 | { "tan", "(D)D", jtan }, |
| 199 | { "tanh", "(D)D", jtanh }, |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 200 | }; |
| 201 | |
Elliott Hughes | c08f9fb | 2010-04-16 17:44:12 -0700 | [diff] [blame] | 202 | int register_java_lang_Math(JNIEnv* env) { |
| 203 | return jniRegisterNativeMethods(env, "java/lang/Math", gMethods, NELEM(gMethods)); |
The Android Open Source Project | adc854b | 2009-03-03 19:28:47 -0800 | [diff] [blame] | 204 | } |