mirror of
https://github.com/cmusphinx/sphinxtrain.git
synced 2026-06-16 13:14:30 +00:00
David Huggins-Daines
dc157d12e7
Note that most of it is not at all useful. We also had to use an older version than what's in PocketSphinx because SphinxTrain has different needs. Another reorganization will be done soon.
156 lines
4.5 KiB
C
156 lines
4.5 KiB
C
/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/* ====================================================================
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* Copyright (c) 1999-2004 Carnegie Mellon University. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* This work was supported in part by funding from the Defense Advanced
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* Research Projects Agency and the National Science Foundation of the
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* United States of America, and the CMU Sphinx Speech Consortium.
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*
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* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
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* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ====================================================================
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*
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*/
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#ifndef _LIBUTIL_BITVEC_H_
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#define _LIBUTIL_BITVEC_H_
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#include <string.h>
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/* Win32/WinCE DLL gunk */
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#include <sphinxbase/sphinxbase_export.h>
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#include <sphinxbase/prim_type.h>
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#include <sphinxbase/ckd_alloc.h>
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/**
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* @file bitvec.h
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* @brief An implementation of bit vectors.
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*
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* Implementation of basic operations of bit vectors.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if 0
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/* Fool Emacs. */
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}
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#endif
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#define BITVEC_BITS 32
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typedef uint32 bitvec_t;
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/**
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* Number of bitvec_t in a bit vector
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*/
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#define bitvec_size(n) (((n)+BITVEC_BITS-1)/BITVEC_BITS)
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/**
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* Allocate a bit vector, all bits are clear
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*/
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#define bitvec_alloc(n) ckd_calloc(bitvec_size(n), sizeof(bitvec_t))
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/**
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* Resize a bit vector, clear the remaining bits
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*/
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SPHINXBASE_EXPORT
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bitvec_t *bitvec_realloc(bitvec_t *vec, /* In: Bit vector to search */
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size_t old_len, /* In: Old length */
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size_t new_len); /* In: New lenght of above bit vector */
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/**
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* Free a bit vector.
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*/
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#define bitvec_free(v) ckd_free(v)
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/**
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* Set the b-th bit of bit vector v
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* @param v is a vector
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* @param b is the bit which will be set
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*/
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#define bitvec_set(v,b) (v[(b)/BITVEC_BITS] |= (1UL << ((b) & (BITVEC_BITS-1))))
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/**
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* Set all n bits in bit vector v
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* @param v is a vector
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* @param n is the number of bits
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*/
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#define bitvec_set_all(v,n) memset(v, (bitvec_t)-1, \
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(((n)+BITVEC_BITS-1)/BITVEC_BITS) * \
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sizeof(bitvec_t))
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/**
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* Clear the b-th bit of bit vector v
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* @param v is a vector
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* @param b is the bit which will be set
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*/
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#define bitvec_clear(v,b) (v[(b)/BITVEC_BITS] &= ~(1UL << ((b) & (BITVEC_BITS-1))))
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/**
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* Clear all n bits in bit vector v
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* @param v is a vector
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* @param n is the number of bits
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*/
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#define bitvec_clear_all(v,n) memset(v, 0, (((n)+BITVEC_BITS-1)/BITVEC_BITS) * \
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sizeof(bitvec_t))
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/**
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* Check whether the b-th bit is set in vector v
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* @param v is a vector
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* @param b is the bit which will be checked
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*/
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#define bitvec_is_set(v,b) (v[(b)/BITVEC_BITS] & (1UL << ((b) & (BITVEC_BITS-1))))
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/**
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* Check whether the b-th bit is cleared in vector v
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* @param v is a vector
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* @param b is the bit which will be checked
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*/
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#define bitvec_is_clear(v,b) (! (bitvec_is_set(v,b)))
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/**
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* Return the number of bits set in the given bitvector.
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*
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* @param vec is the bit vector
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* @param len is the length of bit vector <code>vec</code>
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* @return the number of bits being set in vector <code>vec</code>
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*/
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SPHINXBASE_EXPORT
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size_t bitvec_count_set(bitvec_t *vec, /* In: Bit vector to search */
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size_t len); /* In: Lenght of above bit vector */
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#ifdef __cplusplus
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}
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#endif
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#endif
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