| /* |
| * Copyright (C) 2005 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "Double" |
| |
| #include "JNIHelp.h" |
| #include "JniConstants.h" |
| |
| #include <math.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <stdint.h> |
| |
| union Double { |
| uint64_t bits; |
| double d; |
| }; |
| |
| static jlong Double_doubleToRawLongBits(JNIEnv*, jclass, jdouble val) { |
| Double d; |
| d.d = val; |
| return d.bits; |
| } |
| |
| static jdouble Double_longBitsToDouble(JNIEnv*, jclass, jlong val) { |
| Double d; |
| d.bits = val; |
| return d.d; |
| } |
| |
| static JNINativeMethod gMethods[] = { |
| NATIVE_METHOD(Double, doubleToRawLongBits, "(D)J"), |
| NATIVE_METHOD(Double, longBitsToDouble, "(J)D"), |
| }; |
| void register_java_lang_Double(JNIEnv* env) { |
| jniRegisterNativeMethods(env, "java/lang/Double", gMethods, NELEM(gMethods)); |
| } |