Rev 661 | Rev 697 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 647 | cejka | 1 | /* |
| 2 | * Copyright (C) 2005 Josef Cejka |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | #ifndef __SFTYPES_H__ |
||
| 30 | #define __SFTYPES_H__ |
||
| 31 | |||
| 32 | |||
| 33 | typedef union { |
||
| 34 | float f; |
||
| 652 | cejka | 35 | __u32 binary; |
| 36 | |||
| 647 | cejka | 37 | struct { |
| 38 | #ifdef __BIG_ENDIAN__ |
||
| 39 | __u32 sign:1; |
||
| 40 | __u32 exp:8; |
||
| 41 | __u32 mantisa:23; |
||
| 42 | #elif defined __LITTLE_ENDIAN__ |
||
| 43 | __u32 mantisa:23; |
||
| 44 | __u32 exp:8; |
||
| 45 | __u32 sign:1; |
||
| 46 | #else |
||
| 47 | #error "Unknown endians." |
||
| 48 | #endif |
||
| 49 | } parts __attribute__ ((packed)); |
||
| 50 | } float32; |
||
| 51 | |||
| 52 | typedef union { |
||
| 53 | double d; |
||
| 652 | cejka | 54 | __u64 binary; |
| 55 | |||
| 647 | cejka | 56 | struct { |
| 57 | #ifdef __BIG_ENDIAN__ |
||
| 58 | __u64 sign:1; |
||
| 59 | __u64 exp:11; |
||
| 60 | __u64 mantisa:52; |
||
| 61 | #elif defined __LITTLE_ENDIAN__ |
||
| 62 | __u64 mantisa:52; |
||
| 63 | __u64 exp:11; |
||
| 64 | __u64 sign:1; |
||
| 65 | #else |
||
| 66 | #error "Unknown endians." |
||
| 67 | #endif |
||
| 68 | } parts __attribute__ ((packed)); |
||
| 69 | } float64; |
||
| 70 | |||
| 71 | #define FLOAT32_MAX 0x7f800000 |
||
| 72 | #define FLOAT32_MIN 0xff800000 |
||
| 73 | #define FLOAT64_MAX |
||
| 74 | #define FLOAT64_MIN |
||
| 75 | |||
| 661 | cejka | 76 | /* For recognizing NaNs or infinity use isFloat32NaN and is Float32Inf, comparing with this constants is not sufficient */ |
| 77 | #define FLOAT32_NAN 0x7F800001 |
||
| 78 | #define FLOAT32_SIGNAN 0x7FC00000 |
||
| 79 | #define FLOAT32_INF 0x7F800000 |
||
| 80 | |||
| 688 | cejka | 81 | #define FLOAT32_MANTISA_SIZE 23 |
| 82 | |||
| 83 | #define FLOAT32_BIAS 0x7F |
||
| 647 | cejka | 84 | #define FLOAT64_BIAS 0x3FF |
| 85 | #define FLOAT80_BIAS 0x3FFF |
||
| 86 | |||
| 87 | |||
| 88 | #endif |
||
| 89 |