Mercurial > hg > Members > kono > jpf-core

annotate src/peers/gov/nasa/jpf/vm/JPF_java_lang_Float.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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1 /*
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2 * Copyright (C) 2014, United States Government, as represented by the
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Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
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3 * Administrator of the National Aeronautics and Space Administration.
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4 * All rights reserved.
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5 *
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6 * The Java Pathfinder core (jpf-core) platform is licensed under the
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7 * Apache License, Version 2.0 (the "License"); you may not use this file except
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8 * in compliance with the License. You may obtain a copy of the License at
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9 *
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10 * http://www.apache.org/licenses/LICENSE-2.0.
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11 *
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Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
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12 * Unless required by applicable law or agreed to in writing, software
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Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 * See the License for the specific language governing permissions and
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16 * limitations under the License.
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17 */
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18 package gov.nasa.jpf.vm;
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19
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20 import gov.nasa.jpf.annotation.MJI;
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21 import gov.nasa.jpf.vm.MJIEnv;
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22 import gov.nasa.jpf.vm.NativePeer;
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23
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24 /**
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25 * MJI NativePeer class for java.lang.Float library abstraction
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26 */
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27 public class JPF_java_lang_Float extends NativePeer {
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28 @MJI
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29 public int floatToIntBits__F__I (MJIEnv env, int rcls, float v0) {
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30 return Float.floatToIntBits(v0);
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31 }
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32
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33 @MJI
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34 public int floatToRawIntBits__F__I (MJIEnv env, int rcls, float v0) {
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35 return Float.floatToRawIntBits(v0);
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36 }
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37
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38 @MJI
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39 public float intBitsToFloat__I__F (MJIEnv env, int rcls, int v0) {
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40 return Float.intBitsToFloat(v0);
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41 }
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42
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43 // we need to intercept this because it compares double values, which might
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44 // cause an ArithmeticException to be raised if -check-fp-compare is set (default)
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45 // but -check-fp isn't, and Double.isInfinit is used to handle the cases
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46 // explicitly in the program (which is supposed to be the right way)
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47 @MJI
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48 public boolean isInfinite__F__Z (MJIEnv env, int rcls, float v) {
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49 return Float.isInfinite(v);
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50 }
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51
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52 // ditto (see isInfinite)
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53 @MJI
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54 public boolean isNaN__F__Z (MJIEnv env, int rcls, float v) {
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55 return Float.isNaN(v);
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56 }
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57 }