types.h File Reference

Type definitions for fixed point arithmetic types. More...

#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	mfrac
	16 bit fractional number in Q8.8 format. More...
struct	frac
	16 bit fractional number in Q1.15 format. More...
struct	dfrac
	32 bit fractional number in Q2.30 format. More...
struct	efrac
	32 bit fractional number in Q17.15 format. More...

Macros
#define	MFRAC_BIT   (16)
#define	FRAC_BIT   (16)
#define	DFRAC_BIT   (32)
#define	EFRAC_BIT   (32)
#define	MFRAC_1_V   (INT16_MAX >> 8)
	mfrac representing 1. More...
#define	MFRAC_minus1_V   (INT16_MIN >> 8)
	mfrac representing -1. More...
#define	MFRAC_MAX_V   INT16_MAX
	Maximum (most positive) value for a frac. More...
#define	MFRAC_MIN_V   INT16_MIN
	Minimum (most negative) value for a frac. More...

Typedefs
typedef int16_t	mfrac_base
typedef int16_t	frac_base
typedef int32_t	dfrac_base
typedef int32_t	efrac_base
typedef frac	frac_s16
typedef dfrac	frac_s32

Detailed Description

Type definitions for fixed point arithmetic types.

Author

Juan I Carrano juan@.nosp@m.carr.nosp@m.ano.c.nosp@m.om.a.nosp@m.r

Copyright

Copyright (c) 2019 Juan I Carrano

Copyright (c) 2013 Juan I Carrano, Andrés Calcabrini, Juan I. Ubeira and Nicolás Venturo.

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 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.

Definition in file types.h.