mirror of git://gcc.gnu.org/git/gcc.git
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/* VMFloat.c - java.lang.VMFloat native functions
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Copyright (C) 1998, 1999, 2003, 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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#include <config.h>
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#include "java_lang_VMFloat.h"
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/*
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* Class: java_lang_VMFloat
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* Method: floatToIntBits
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* Signature: (F)I
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*/
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JNIEXPORT jint JNICALL
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Java_java_lang_VMFloat_floatToIntBits
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(JNIEnv * env __attribute__ ((__unused__)),
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jclass cls __attribute__ ((__unused__)), jfloat value)
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{
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jvalue u;
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jint e, f;
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u.f = value;
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e = u.i & 0x7f800000;
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f = u.i & 0x007fffff;
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if (e == 0x7f800000 && f != 0)
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u.i = 0x7fc00000;
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return u.i;
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}
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/*
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* Class: java_lang_VMFloat
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* Method: floatToRawIntBits
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* Signature: (F)I
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*/
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JNIEXPORT jint JNICALL
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Java_java_lang_VMFloat_floatToRawIntBits
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(JNIEnv * env __attribute__ ((__unused__)),
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jclass cls __attribute__ ((__unused__)), jfloat value)
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{
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jvalue u;
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u.f = value;
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return u.i;
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}
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/*
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* Class: java_lang_VMFloat
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* Method: intBitsToFloat
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* Signature: (I)F
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*/
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JNIEXPORT jfloat JNICALL
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Java_java_lang_VMFloat_intBitsToFloat
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(JNIEnv * env __attribute__ ((__unused__)),
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jclass cls __attribute__ ((__unused__)), jint bits)
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{
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jvalue u;
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u.i = bits;
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return u.f;
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}
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