source:
trunk/src/gcc/libjava/java/lang/natFloat.cc@
2
| Last change on this file since 2 was 2, checked in by , 23 years ago | |
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| File size: 829 bytes | |
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| 1 | // natFloat.cc - Implementation of java.lang.Float native methods. |
| 2 | |
| 3 | /* Copyright (C) 1998, 1999, 2001 Free Software Foundation |
| 4 | |
| 5 | This file is part of libgcj. |
| 6 | |
| 7 | This software is copyrighted work licensed under the terms of the |
| 8 | Libgcj License. Please consult the file "LIBGCJ_LICENSE" for |
| 9 | details. */ |
| 10 | |
| 11 | #include <config.h> |
| 12 | |
| 13 | #include <java/lang/Float.h> |
| 14 | #include <jvm.h> |
| 15 | |
| 16 | union u |
| 17 | { |
| 18 | jint l; |
| 19 | jfloat d; |
| 20 | }; |
| 21 | |
| 22 | jint |
| 23 | java::lang::Float::floatToIntBits(jfloat value) |
| 24 | { |
| 25 | union u u; |
| 26 | u.d = value; |
| 27 | jint e = u.l & 0x7f800000; |
| 28 | jint f = u.l & 0x007fffff; |
| 29 | |
| 30 | if (e == 0x7f800000 && f != 0) |
| 31 | u.l = 0x7fc00000; |
| 32 | |
| 33 | return u.l; |
| 34 | } |
| 35 | |
| 36 | jint |
| 37 | java::lang::Float::floatToRawIntBits(jfloat value) |
| 38 | { |
| 39 | union u u; |
| 40 | u.d = value; |
| 41 | return u.l; |
| 42 | } |
| 43 | |
| 44 | jfloat |
| 45 | java::lang::Float::intBitsToFloat(jint bits) |
| 46 | { |
| 47 | union u u; |
| 48 | u.l = bits; |
| 49 | return u.d; |
| 50 | } |
| 51 |
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