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Diffstat (limited to 'ext/fputils/include/fputils/fptypes.h')
-rw-r--r-- | ext/fputils/include/fputils/fptypes.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/ext/fputils/include/fputils/fptypes.h b/ext/fputils/include/fputils/fptypes.h new file mode 100644 index 000000000..714ddd439 --- /dev/null +++ b/ext/fputils/include/fputils/fptypes.h @@ -0,0 +1,86 @@ +/* + * 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; + } repr; + /** + * Represented as a char array, mainly intended for debug dumping + * and serialization. + */ + char bits[10]; +} fp80_t; + +/** @} */ + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif |