mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-28 11:08:15 +08:00
a18816f839
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@441 d0cd1f9f-072b-0410-8dd7-cf729c803f20
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/******************************************************************************
|
|
** Filename: bitvec.h
|
|
** Purpose: Routines for manipulating bit vectors
|
|
** Author: Dan Johnson
|
|
** History: Wed Mar 7 17:52:45 1990, DSJ, Created.
|
|
**
|
|
** (c) Copyright Hewlett-Packard Company, 1988.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
******************************************************************************/
|
|
#ifndef BITVEC_H
|
|
#define BITVEC_H
|
|
|
|
#include "host.h"
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
Include Files and Type Defines
|
|
-----------------------------------------------------------------------------*/
|
|
#define BITSINLONG 32 /**< no of bits in a long */
|
|
typedef uinT32 *BIT_VECTOR;
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
Public Function Prototypes
|
|
-----------------------------------------------------------------------------*/
|
|
#define zero_all_bits(array,length) \
|
|
{\
|
|
register int index; /*temporary index*/\
|
|
\
|
|
for (index=0;index<length;index++)\
|
|
array[index]=0; /*zero all bits*/\
|
|
}
|
|
|
|
#define set_all_bits(array,length) \
|
|
{\
|
|
register int index; /*temporary index*/\
|
|
\
|
|
for (index=0;index<length;index++)\
|
|
array[index]= ~0; /*set all bits*/\
|
|
}
|
|
|
|
#define copy_all_bits(source,dest,length) \
|
|
{\
|
|
register int index; /*temporary index*/\
|
|
\
|
|
for (index=0;index<length;index++)\
|
|
dest[index]=source[index]; /*copy all bits*/\
|
|
}
|
|
|
|
#define SET_BIT(array,bit) (array[bit/BITSINLONG]|=1<<(bit&(BITSINLONG-1)))
|
|
|
|
#define reset_bit(array,bit) (array[bit/BITSINLONG]&=~(1<<(bit&(BITSINLONG-1))))
|
|
|
|
#define test_bit(array,bit) (array[bit/BITSINLONG] & (1<<(bit&(BITSINLONG-1))))
|
|
|
|
#define WordsInVectorOfSize(NumBits) \
|
|
(((NumBits) + BITSINLONG - 1) / BITSINLONG)
|
|
|
|
/*--------------------------------------------------------------------------
|
|
Public Function Prototypes
|
|
--------------------------------------------------------------------------*/
|
|
BIT_VECTOR ExpandBitVector(BIT_VECTOR Vector, int NewNumBits);
|
|
|
|
void FreeBitVector(BIT_VECTOR BitVector);
|
|
|
|
int hamming_distance(uinT32* array1, uinT32* array2, int length);
|
|
|
|
BIT_VECTOR NewBitVector(int NumBits);
|
|
/*
|
|
#if defined(__STDC__) || defined(__cplusplus)
|
|
# define _ARGS(s) s
|
|
#else
|
|
# define _ARGS(s) ()
|
|
#endif*/
|
|
|
|
/* bitvec.c
|
|
BIT_VECTOR ExpandBitVector
|
|
_ARGS((BIT_VECTOR Vector,
|
|
int NewNumBits));
|
|
|
|
void FreeBitVector
|
|
_ARGS((BIT_VECTOR BitVector));
|
|
|
|
int hamming_distance
|
|
_ARGS((unsigned long *array1,
|
|
unsigned long *array2,
|
|
int length));
|
|
|
|
BIT_VECTOR NewBitVector
|
|
_ARGS((int NumBits));
|
|
|
|
#undef _ARGS
|
|
*/
|
|
#endif
|