| /* |
| * Copyright (c) 2014 Andreas Sandberg |
| * All rights reserved |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer; |
| * redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution; |
| * neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Authors: Andreas Sandberg |
| */ |
| |
| #ifndef _FPTYPES_H |
| #define _FPTYPES_H 1 |
| |
| #include <stdint.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * @addtogroup fp64 |
| * @{ |
| */ |
| |
| /** Internal representation of a 64-bit float */ |
| typedef union { |
| /** |
| * Raw value exposed as an unsigned integer. Mainly used for bit |
| * manipulation. |
| */ |
| uint64_t bits; |
| /** Representation using the built-in double type */ |
| double value; |
| } fp64_t; |
| |
| /** @} */ |
| |
| |
| /** |
| * @addtogroup fp80 |
| * @{ |
| */ |
| |
| /** Internal representation of an 80-bit float. */ |
| typedef union { |
| struct { |
| /** Raw representation of the integer part bit and the |
| * fraction. Note that unlike 64-bit floating point |
| * representations the integer bit is explicit. */ |
| uint64_t fi; |
| /** Raw representation of sign bit and exponent */ |
| uint16_t se; |
| /** Add explicit padding to ensure this data structure |
| * is properly aligned. |
| */ |
| uint16_t pad[3]; |
| } repr; |
| /** |
| * Represented as a char array, mainly intended for debug dumping |
| * and serialization. |
| */ |
| char bits[16]; |
| } fp80_t; |
| |
| /** @} */ |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| #endif |
| |
| #endif |