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https://github.com/tesseract-ocr/tesseract.git
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93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/******************************************************************************
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** Filename: bitvec.c
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** Purpose: Routines for manipulating bit vectors
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** Author: Dan Johnson
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** History: Thu Mar 15 10:37:27 1990, DSJ, Created.
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**
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** (c) Copyright Hewlett-Packard Company, 1988.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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******************************************************************************/
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/*-----------------------------------------------------------------------------
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Include Files and Type Defines
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-----------------------------------------------------------------------------*/
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#include "bitvec.h"
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#include <stdio.h>
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#include "emalloc.h"
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#include "tprintf.h"
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/*-----------------------------------------------------------------------------
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Public Code
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-----------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------*/
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/**
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* This routine uses realloc to increase the size of
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* the specified bit vector.
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*
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* Globals:
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* - none
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*
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* @param Vector bit vector to be expanded
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* @param NewNumBits new size of bit vector
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*
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* @return New expanded bit vector.
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* @note Exceptions: none
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* @note History: Fri Nov 16 10:11:16 1990, DSJ, Created.
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*/
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BIT_VECTOR ExpandBitVector(BIT_VECTOR Vector, int NewNumBits) {
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return ((BIT_VECTOR) Erealloc(Vector,
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sizeof(Vector[0]) * WordsInVectorOfSize(NewNumBits)));
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} /* ExpandBitVector */
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/*---------------------------------------------------------------------------*/
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void FreeBitVector(BIT_VECTOR BitVector) {
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/**
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* This routine frees a bit vector. It also decrements
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* the global counter that keeps track of the number of
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* bit vectors allocated. If BitVector is NULL, then
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* the count is printed to stderr.
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*
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* Globals:
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* - BitVectorCount count of number of bit vectors allocated
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*
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* @param BitVector bit vector to be freed
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*
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* @note Exceptions: none
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* @note History: Tue Oct 23 16:46:09 1990, DSJ, Created.
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*/
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if (BitVector) {
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Efree(BitVector);
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}
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} /* FreeBitVector */
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/*---------------------------------------------------------------------------*/
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/**
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* Allocate and return a new bit vector large enough to
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* hold the specified number of bits.
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*
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* Globals:
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* - BitVectorCount number of bit vectors allocated
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*
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* @param NumBits number of bits in new bit vector
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*
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* @return New bit vector.
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* @note Exceptions: none
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* @note History: Tue Oct 23 16:51:27 1990, DSJ, Created.
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*/
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BIT_VECTOR NewBitVector(int NumBits) {
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return ((BIT_VECTOR) Emalloc(sizeof(uinT32) *
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WordsInVectorOfSize(NumBits)));
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} /* NewBitVector */
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