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96 lines
3.6 KiB
C
96 lines
3.6 KiB
C
/*====================================================================*
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- Copyright (C) 2001 Leptonica. All rights 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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- 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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- 2. Redistributions in binary form must reproduce the above
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- copyright notice, this list of conditions and the following
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- disclaimer in the documentation and/or other materials
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- provided with the distribution.
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-
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- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
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- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*====================================================================*/
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#ifndef LEPTONICA_PTRA_H
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#define LEPTONICA_PTRA_H
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/*!
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* \file ptra.h
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*
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* <pre>
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* Contains the following structs:
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* struct L_Ptra
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* struct L_Ptraa
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*
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* Contains definitions for:
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* L_Ptra compaction flags for removal
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* L_Ptra shifting flags for insert
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* L_Ptraa accessor flags
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* </pre>
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*/
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/*------------------------------------------------------------------------*
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* Generic Ptr Array Structs *
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*------------------------------------------------------------------------*/
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/*! Generic pointer array */
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struct L_Ptra
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{
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l_int32 nalloc; /*!< size of allocated ptr array */
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l_int32 imax; /*!< greatest valid index */
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l_int32 nactual; /*!< actual number of stored elements */
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void **array; /*!< ptr array */
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};
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typedef struct L_Ptra L_PTRA;
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/*! Array of generic pointer arrays */
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struct L_Ptraa
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{
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l_int32 nalloc; /*!< size of allocated ptr array */
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struct L_Ptra **ptra; /*!< array of ptra */
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};
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typedef struct L_Ptraa L_PTRAA;
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/*------------------------------------------------------------------------*
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* Array flags *
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*------------------------------------------------------------------------*/
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/*! Flags for removal from L_Ptra */
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enum {
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L_NO_COMPACTION = 1, /*!< null the pointer only */
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L_COMPACTION = 2 /*!< compact the array */
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};
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/*! Flags for insertion into L_Ptra */
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enum {
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L_AUTO_DOWNSHIFT = 0, /*!< choose based on number of holes */
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L_MIN_DOWNSHIFT = 1, /*!< downshifts min # of ptrs below insert */
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L_FULL_DOWNSHIFT = 2 /*!< downshifts all ptrs below insert */
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};
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/*! Accessor flags for L_Ptraa */
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enum {
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L_HANDLE_ONLY = 0, /*!< ptr to L_Ptra; caller can inspect only */
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L_REMOVE = 1 /*!< caller owns; destroy or save in L_Ptraa */
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};
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#endif /* LEPTONICA_PTRA_H */
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