| /* |
| * 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: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * 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. |
| */ |
| |
| #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 |