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      1 /*
      2  * divsufsort_private.h for libdivsufsort
      3  * Copyright (c) 2003-2008 Yuta Mori All Rights Reserved.
      4  *
      5  * Permission is hereby granted, free of charge, to any person
      6  * obtaining a copy of this software and associated documentation
      7  * files (the "Software"), to deal in the Software without
      8  * restriction, including without limitation the rights to use,
      9  * copy, modify, merge, publish, distribute, sublicense, and/or sell
     10  * copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following
     12  * conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be
     15  * included in all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
     19  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     20  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
     21  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
     22  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     24  * OTHER DEALINGS IN THE SOFTWARE.
     25  */
     26 
     27 #ifndef _DIVSUFSORT_PRIVATE_H
     28 #define _DIVSUFSORT_PRIVATE_H 1
     29 
     30 #ifdef __cplusplus
     31 extern "C" {
     32 #endif /* __cplusplus */
     33 
     34 #if HAVE_CONFIG_H
     35 # include "config.h"
     36 #endif
     37 #include <assert.h>
     38 #include <stdio.h>
     39 #if HAVE_STRING_H
     40 # include <string.h>
     41 #endif
     42 #if HAVE_STDLIB_H
     43 # include <stdlib.h>
     44 #endif
     45 #if HAVE_MEMORY_H
     46 # include <memory.h>
     47 #endif
     48 #if HAVE_STDDEF_H
     49 # include <stddef.h>
     50 #endif
     51 #if HAVE_STRINGS_H
     52 # include <strings.h>
     53 #endif
     54 #if HAVE_INTTYPES_H
     55 # include <inttypes.h>
     56 #else
     57 # if HAVE_STDINT_H
     58 #  include <stdint.h>
     59 # endif
     60 #endif
     61 #if defined(BUILD_DIVSUFSORT64)
     62 # include "divsufsort64.h"
     63 # ifndef SAIDX_T
     64 #  define SAIDX_T
     65 #  define saidx_t saidx64_t
     66 # endif /* SAIDX_T */
     67 # ifndef PRIdSAIDX_T
     68 #  define PRIdSAIDX_T PRIdSAIDX64_T
     69 # endif /* PRIdSAIDX_T */
     70 # define divsufsort divsufsort64
     71 # define divbwt divbwt64
     72 # define divsufsort_version divsufsort64_version
     73 # define bw_transform bw_transform64
     74 # define inverse_bw_transform inverse_bw_transform64
     75 # define sufcheck sufcheck64
     76 # define sa_search sa_search64
     77 # define sa_simplesearch sa_simplesearch64
     78 # define sssort sssort64
     79 # define trsort trsort64
     80 #else
     81 # include "divsufsort.h"
     82 #endif
     83 
     84 
     85 /*- Constants -*/
     86 #if !defined(UINT8_MAX)
     87 # define UINT8_MAX (255)
     88 #endif /* UINT8_MAX */
     89 #if defined(ALPHABET_SIZE) && (ALPHABET_SIZE < 1)
     90 # undef ALPHABET_SIZE
     91 #endif
     92 #if !defined(ALPHABET_SIZE)
     93 # define ALPHABET_SIZE (UINT8_MAX + 1)
     94 #endif
     95 /* for divsufsort.c */
     96 #define BUCKET_A_SIZE (ALPHABET_SIZE)
     97 #define BUCKET_B_SIZE (ALPHABET_SIZE * ALPHABET_SIZE)
     98 /* for sssort.c */
     99 #if defined(SS_INSERTIONSORT_THRESHOLD)
    100 # if SS_INSERTIONSORT_THRESHOLD < 1
    101 #  undef SS_INSERTIONSORT_THRESHOLD
    102 #  define SS_INSERTIONSORT_THRESHOLD (1)
    103 # endif
    104 #else
    105 # define SS_INSERTIONSORT_THRESHOLD (8)
    106 #endif
    107 #if defined(SS_BLOCKSIZE)
    108 # if SS_BLOCKSIZE < 0
    109 #  undef SS_BLOCKSIZE
    110 #  define SS_BLOCKSIZE (0)
    111 # elif 32768 <= SS_BLOCKSIZE
    112 #  undef SS_BLOCKSIZE
    113 #  define SS_BLOCKSIZE (32767)
    114 # endif
    115 #else
    116 # define SS_BLOCKSIZE (1024)
    117 #endif
    118 /* minstacksize = log(SS_BLOCKSIZE) / log(3) * 2 */
    119 #if SS_BLOCKSIZE == 0
    120 # if defined(BUILD_DIVSUFSORT64)
    121 #  define SS_MISORT_STACKSIZE (96)
    122 # else
    123 #  define SS_MISORT_STACKSIZE (64)
    124 # endif
    125 #elif SS_BLOCKSIZE <= 4096
    126 # define SS_MISORT_STACKSIZE (16)
    127 #else
    128 # define SS_MISORT_STACKSIZE (24)
    129 #endif
    130 #if defined(BUILD_DIVSUFSORT64)
    131 # define SS_SMERGE_STACKSIZE (64)
    132 #else
    133 # define SS_SMERGE_STACKSIZE (32)
    134 #endif
    135 /* for trsort.c */
    136 #define TR_INSERTIONSORT_THRESHOLD (8)
    137 #if defined(BUILD_DIVSUFSORT64)
    138 # define TR_STACKSIZE (96)
    139 #else
    140 # define TR_STACKSIZE (64)
    141 #endif
    142 
    143 
    144 /*- Macros -*/
    145 #ifndef SWAP
    146 # define SWAP(_a, _b) do { t = (_a); (_a) = (_b); (_b) = t; } while(0)
    147 #endif /* SWAP */
    148 #ifndef MIN
    149 # define MIN(_a, _b) (((_a) < (_b)) ? (_a) : (_b))
    150 #endif /* MIN */
    151 #ifndef MAX
    152 # define MAX(_a, _b) (((_a) > (_b)) ? (_a) : (_b))
    153 #endif /* MAX */
    154 #define STACK_PUSH(_a, _b, _c, _d)\
    155   do {\
    156     assert(ssize < STACK_SIZE);\
    157     stack[ssize].a = (_a), stack[ssize].b = (_b),\
    158     stack[ssize].c = (_c), stack[ssize++].d = (_d);\
    159   } while(0)
    160 #define STACK_PUSH5(_a, _b, _c, _d, _e)\
    161   do {\
    162     assert(ssize < STACK_SIZE);\
    163     stack[ssize].a = (_a), stack[ssize].b = (_b),\
    164     stack[ssize].c = (_c), stack[ssize].d = (_d), stack[ssize++].e = (_e);\
    165   } while(0)
    166 #define STACK_POP(_a, _b, _c, _d)\
    167   do {\
    168     assert(0 <= ssize);\
    169     if(ssize == 0) { return; }\
    170     (_a) = stack[--ssize].a, (_b) = stack[ssize].b,\
    171     (_c) = stack[ssize].c, (_d) = stack[ssize].d;\
    172   } while(0)
    173 #define STACK_POP5(_a, _b, _c, _d, _e)\
    174   do {\
    175     assert(0 <= ssize);\
    176     if(ssize == 0) { return; }\
    177     (_a) = stack[--ssize].a, (_b) = stack[ssize].b,\
    178     (_c) = stack[ssize].c, (_d) = stack[ssize].d, (_e) = stack[ssize].e;\
    179   } while(0)
    180 /* for divsufsort.c */
    181 #define BUCKET_A(_c0) bucket_A[(_c0)]
    182 #if ALPHABET_SIZE == 256
    183 #define BUCKET_B(_c0, _c1) (bucket_B[((_c1) << 8) | (_c0)])
    184 #define BUCKET_BSTAR(_c0, _c1) (bucket_B[((_c0) << 8) | (_c1)])
    185 #else
    186 #define BUCKET_B(_c0, _c1) (bucket_B[(_c1) * ALPHABET_SIZE + (_c0)])
    187 #define BUCKET_BSTAR(_c0, _c1) (bucket_B[(_c0) * ALPHABET_SIZE + (_c1)])
    188 #endif
    189 
    190 
    191 /*- Private Prototypes -*/
    192 /* sssort.c */
    193 void
    194 sssort(const sauchar_t *Td, const saidx_t *PA,
    195        saidx_t *first, saidx_t *last,
    196        saidx_t *buf, saidx_t bufsize,
    197        saidx_t depth, saidx_t n, saint_t lastsuffix);
    198 /* trsort.c */
    199 void
    200 trsort(saidx_t *ISA, saidx_t *SA, saidx_t n, saidx_t depth);
    201 
    202 
    203 #ifdef __cplusplus
    204 } /* extern "C" */
    205 #endif /* __cplusplus */
    206 
    207 #endif /* _DIVSUFSORT_PRIVATE_H */
    208