Changeset 37351
- Timestamp:
- 2023-02-24T13:52:49+13:00 (4 weeks ago)
- Location:
- main/trunk/greenstone2/common-src/indexers/mg/lib
- Files:
-
- 4 edited
Legend:
- Unmodified
- Added
- Removed
-
main/trunk/greenstone2/common-src/indexers/mg/lib/perf_hash.c
r29083 r37351 28 28 #define STRUCT 29 29 30 #include <time.h> 31 30 32 #include "sysfuncs.h" 31 33 … … 34 36 #include "messages.h" 35 37 #include "perf_hash.h" 38 #include "random.h" 36 39 #include "netorder.h" /* [RPAP - Jan 97: Endian Ordering] */ 37 40 … … 43 46 /* Random Number stuff */ 44 47 static mg_s_long seed[] = {0, 0}; 45 #define RANDOM() irandm(seed)48 #define RANDOM() mgirandm(seed) 46 49 #define SEED_RANDOM(the_seed) do{ seed[0] = the_seed; }while(0) 47 50 … … 62 65 63 66 /* An arbitrary amount to add to both MAX_N and n for building tree/acyclic 64 67 graph -- John McPherson - jrm21 (22-02-2001) */ 65 68 #define MAX_N_HEADROOM 100 66 69 … … 96 99 /* test, used in the assignment step */ 97 100 static struct 98 99 100 101 101 { 102 int sp; 103 int *st; 104 } 102 105 S; 103 106 #define push(s, e) s.st[s.sp++] = (e) … … 114 117 unique (int v) 115 118 { /* checks if vertex v belongs to only one edge */ 116 119 return (FIRST[v] != 0 && NEXT[FIRST[v]] == 0) ? FIRST[v] : 0; 117 120 } /*unique */ 118 121 … … 128 131 { /* deletes edge e from list of v */ 129 132 130 int b, norm_b; 131 b = FIRST[v]; 133 int b, norm_b; 134 b = FIRST[v]; 135 assert (norm (b) != 0); 136 if (norm (b) == e) 137 FIRST[v] = NEXT[FIRST[v]]; 138 else 139 { 140 while (norm (NEXT[b]) != e) 141 { 142 b = NEXT[b]; 132 143 assert (norm (b) != 0); 133 if (norm (b) == e) 134 FIRST[v] = NEXT[FIRST[v]]; 135 else 136 { 137 while (norm (NEXT[b]) != e) 138 { 139 b = NEXT[b]; 140 assert (norm (b) != 0); 141 } 142 NEXT[b] = NEXT[NEXT[b]]; 143 } 144 } 145 NEXT[b] = NEXT[NEXT[b]]; 146 } 144 147 } /*delete */ 145 148 … … 155 158 ph_remove (int e, int v) 156 159 { 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 160 int b; 161 mk[e] = ERASED; 162 push (S, e); 163 164 if (NODEa[e] != v) 165 delete (NODEa[e], e); 166 if (NODEb[e] != v) 167 delete (NODEb[e], e); 168 if (NODEc[e] != v) 169 delete (NODEc[e], e); 170 171 if (NODEa[e] != v && mk[b = norm (unique (NODEa[e]))] == MEMBER) 172 ph_remove (b, NODEa[e]); 173 if (NODEb[e] != v && mk[b = norm (unique (NODEb[e]))] == MEMBER) 174 ph_remove (b, NODEb[e]); 175 if (NODEc[e] != v && mk[b = norm (unique (NODEc[e]))] == MEMBER) 176 ph_remove (b, NODEc[e]); 174 177 } 175 178 #else … … 178 181 static int StackPos, StackMax; 179 182 static struct Stack 180 181 182 183 183 { 184 int e, v, m; 185 } 186 *Stack = NULL; 184 187 185 188 #define StackAdd(_e, _v, _m) \ 186 187 188 189 190 191 192 193 194 195 196 189 do { \ 190 if (StackPos == StackMax) \ 191 { \ 192 StackMax <<= 1; \ 193 if (!(Stack = Xrealloc(Stack, sizeof(*Stack) * StackMax))) \ 194 return(-1); \ 195 } \ 196 Stack[StackPos].e = (_e); \ 197 Stack[StackPos].v = (_v); \ 198 Stack[StackPos++].m = (_m); \ 199 } while(0) 197 200 198 201 … … 200 203 ph_remove (int e, int v) 201 204 { 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 205 if (!Stack) 206 { 207 StackMax = 256; 208 if (!(Stack = Xmalloc (sizeof (*Stack) * StackMax))) 209 return (-1); 210 StackPos = 0; 211 } 212 Stack[StackPos].e = e; 213 Stack[StackPos].v = v; 214 Stack[StackPos].m = 0; 215 StackPos++; 216 while (StackPos) 217 { 218 int m, b; 219 StackPos--; 220 e = Stack[StackPos].e; 221 v = Stack[StackPos].v; 222 m = Stack[StackPos].m; 223 224 225 switch (m) 226 { 227 case 0: 228 { 229 mk[e] = ERASED; 230 push (S, e); 231 232 if (NODEa[e] != v) 233 delete (NODEa[e], e); 234 if (NODEb[e] != v) 235 delete (NODEb[e], e); 236 if (NODEc[e] != v) 237 delete (NODEc[e], e); 238 239 if (NODEa[e] != v && mk[b = norm (unique (NODEa[e]))] == MEMBER) 240 { 241 Stack[StackPos++].m = 1; 242 StackAdd (b, NODEa[e], 0); 243 break; 244 } 245 } 246 case 1: 247 { 248 if (NODEb[e] != v && mk[b = norm (unique (NODEb[e]))] == MEMBER) 249 { 250 Stack[StackPos++].m = 2; 251 StackAdd (b, NODEb[e], 0); 252 break; 253 } 254 } 255 case 2: 256 if (NODEc[e] != v && mk[b = norm (unique (NODEc[e]))] == MEMBER) 257 StackAdd (b, NODEc[e], 0); 258 } 259 } 260 return (0); 258 261 } 259 262 #endif … … 271 274 { 272 275 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 276 int v, e; 277 /* build list of edges for each node */ 278 for (v = 1; v <= n; FIRST[v++] = 0); 279 for (e = 1; e <= m; e++) 280 { 281 NEXT[A + e] = FIRST[NODEa[e]]; 282 FIRST[NODEa[e]] = A + e; 283 NEXT[B + e] = FIRST[NODEb[e]]; 284 FIRST[NODEb[e]] = B + e; 285 NEXT[C + e] = FIRST[NODEc[e]]; 286 FIRST[NODEc[e]] = C + e; 287 288 /* mark edge e as belonging to the hypergraph */ 289 mk[e] = MEMBER; 290 } 291 292 293 S.sp = 0; /* empty the stack */ 294 mk[0] = ERASED; /* a sentinel for the test below */ 295 for (v = 1; v <= n; v++) 296 { 297 if (mk[e = norm (unique (v))] == MEMBER) 298 ph_remove (e, v); 299 } 300 301 /* check if any edges were left in the graph */ 302 return S.sp == m; 300 303 } /*acyclic */ 301 304 … … 313 316 { 314 317 315 316 317 318 319 320 321 322 323 324 325 326 327 318 int e, k = 0; 319 int i, j; 320 u_char *w; 321 322 do 323 { 324 /* Added variable - need to increase MAX_N on allocate as well */ 325 *n = (int) (num * c + MAX_N_HEADROOM); /* john mcpherson 22-02-2001 */ 326 327 /* initialize tables of random integers */ 328 for (i = 0; i < MAX_CH; i++) 329 for (j = 0; j < MAX_L; j++) 330 { 328 331 #ifndef STRUCT 329 330 331 332 tb0[i][j] = RANDOM () % *n; 333 tb1[i][j] = RANDOM () % *n; 334 tb2[i][j] = RANDOM () % *n; 332 335 #else 333 336 struct tb_entry *tbp = &tb[i][j]; -
main/trunk/greenstone2/common-src/indexers/mg/lib/random.c
r25147 r37351 22 22 /* 23 23 * A random number generator called as a function by 24 * random (iseed) orirandm (iseed)24 * mgrandom (iseed) or mgirandm (iseed) 25 25 * The parameter should be a pointer to a 2-element long vector. 26 26 * The first function returns a double uniform in 0 .. 1. … … 173 173 174 174 double 175 random (mg_s_long is [2])175 mgrandom (mg_s_long is [2]) 176 176 { 177 177 mg_s_long it, leh, nit; … … 194 194 195 195 mg_s_long 196 irandm (mg_s_long is [2])196 mgirandm (mg_s_long is [2]) 197 197 { 198 198 mg_s_long it, leh, nit; -
main/trunk/greenstone2/common-src/indexers/mg/lib/random.h
r25147 r37351 38 38 #include "mglong.h" 39 39 40 double random (mg_s_long is [2]);41 mg_s_long irandm (mg_s_long is [2]);40 double mgrandom (mg_s_long is [2]); 41 mg_s_long mgirandm (mg_s_long is [2]); 42 42 43 43 #endif -
main/trunk/greenstone2/common-src/indexers/mg/lib/simplefrenchstem.c
r16583 r37351 19 19 **************************************************************************/ 20 20 21 #include "unitool.h" 21 22 #include "simplefrenchstem.h" 22 23
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