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/* |
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* Conditional Module |
| 3 |
* by Vicente Rico-Ramirez |
| 4 |
* Created: 09/96 |
| 5 |
* Version: $Revision: 1.7 $ |
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* Version control file: $RCSfile: conditional.h,v $ |
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* Date last modified: $Date: 1998/03/30 22:06:53 $ |
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* Last modified by: $Author: rv2a $ |
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* |
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* This file is part of the SLV solver. |
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* |
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* The SLV solver is free software; you can redistribute |
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* it and/or modify it under the terms of the GNU General Public License as |
| 14 |
* published by the Free Software Foundation; either version 2 of the |
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* License, or (at your option) any later version. |
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* |
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* The SLV solver is distributed in hope that it will be |
| 18 |
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 |
* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
| 23 |
* along with the program; if not, write to the Free Software Foundation, |
| 24 |
* Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check the file named |
| 25 |
* COPYING. COPYING is found in ../compiler. |
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* |
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*/ |
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|
| 29 |
/* |
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* Contents: Conditional module (ascend) |
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* |
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* Dates: 09/96 - original version |
| 33 |
* |
| 34 |
* Description: This is the ascend version of the conditional module |
| 35 |
* This version should be used by any user who receives |
| 36 |
* his/her equations directly from an instance tree created |
| 37 |
* by the ASCEND compiler. |
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*/ |
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|
| 40 |
#ifndef conditional__already_included |
| 41 |
#define conditional__already_included |
| 42 |
/* |
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* requires #include "list.h" |
| 44 |
* requires #include "base.h" |
| 45 |
*/ |
| 46 |
/* |
| 47 |
* I have to get rid of this |
| 48 |
*/ |
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#ifndef MAX_VAR_IN_LIST |
| 50 |
#define MAX_VAR_IN_LIST 20 |
| 51 |
#endif /* MAX_VAR_IN_LIST */ |
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|
| 53 |
|
| 54 |
struct w_when { |
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SlvBackendToken instance; /* the associated ascend ATOM */ |
| 56 |
struct gl_list_t *dvars; /* index of dis vars */ |
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struct gl_list_t *cases; /* when_case's */ |
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int32 num_cases; /* number of cases in the WHEN */ |
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int32 sindex; |
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int32 mindex; |
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int32 model; /* index of a hypothetical MODEL when is from */ |
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uint32 flags; |
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}; |
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|
| 65 |
/* |
| 66 |
* if you mess with the above struct, change the defaults for it in .c file |
| 67 |
*/ |
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|
| 69 |
|
| 70 |
/* |
| 71 |
* When functions |
| 72 |
*/ |
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|
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|
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extern struct w_when *when_create(SlvBackendToken, struct w_when *); |
| 76 |
/* |
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* when_create(instance,newwhen) |
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* struct w_when *newwhen; |
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* SlvBackendToken instance; |
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* |
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* Creates a when given the when instance. |
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* If the when supplied is NULL, we allocate the memory for the |
| 83 |
* when we return, else we just init the memory you hand us and |
| 84 |
* return it to you. |
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* We set the fields instance. Setting the rest of the information |
| 86 |
* is the job of the bridge building function between the ascend |
| 87 |
* instance tree (or other when back end) and the slv_system_t. |
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*/ |
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|
| 90 |
|
| 91 |
extern SlvBackendToken when_instance(struct w_when *); |
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/* |
| 93 |
* when_instance(when) |
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* struct w_when *when; |
| 95 |
* |
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* Returns the instance pointer from a when. |
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*/ |
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|
| 99 |
extern void when_write_name(slv_system_t,struct w_when *,FILE *); |
| 100 |
/* |
| 101 |
* when_write_name(sys,when,file); |
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* |
| 103 |
* Writes a name to the file given. Handles |
| 104 |
* If sys is NULL, writes full ascend name. If file or when is NULL |
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* does not write. |
| 106 |
*/ |
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|
| 108 |
extern void when_destroy_cases(struct w_when *); |
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/* |
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* when_destroy_cases(when) |
| 111 |
* struct w_when *when; |
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* |
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* Destroys a the list of cases of a when. |
| 114 |
*/ |
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|
| 116 |
extern void when_destroy(struct w_when *); |
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/* |
| 118 |
* when_destroy(when) |
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* struct w_when *when; |
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* |
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* Destroys a when. |
| 122 |
*/ |
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|
| 124 |
extern char *when_make_name(slv_system_t,struct w_when *); |
| 125 |
/* |
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* name = when_make_name(sys,when) |
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* slv_system_t sys; |
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* struct w_when *when; |
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* char *name; |
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* |
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* Copies of the when instance name can be made and returned. |
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* The string returned should be freed when no longer in use. |
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*/ |
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|
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|
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extern struct gl_list_t *when_dvars_list( struct w_when *); |
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extern void when_set_dvars_list( struct w_when *, struct gl_list_t *); |
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/* |
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* dvars = when_dvars_list(when) |
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* when_set_dvars_list(when,dvlist) |
| 141 |
* struct gl_list_t *dvlist; |
| 142 |
* struct w_when *when; |
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* |
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* Sets or retrieves the list of dis variables of the given when |
| 145 |
*/ |
| 146 |
|
| 147 |
|
| 148 |
extern struct gl_list_t *when_cases_list( struct w_when *); |
| 149 |
extern void when_set_cases_list( struct w_when *, struct gl_list_t *); |
| 150 |
/* |
| 151 |
* cases = when_cases_list(when) |
| 152 |
* when_set_cases_list(when,clist) |
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* struct gl_list_t *clist; |
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* struct w_when *when; |
| 155 |
* |
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* Sets or retrieves the list of cases of the given when |
| 157 |
*/ |
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|
| 159 |
extern int32 when_num_cases(struct w_when *); |
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extern void when_set_num_cases(struct w_when *,int32); |
| 161 |
/* |
| 162 |
* num_cases = when_num_cases(when) |
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* when_set_num_cases(when,num_cases) |
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* int32 num_cases; |
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* struct w_when *when; |
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* |
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* Sets or retrieves the number of cases of the given when as it |
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* appears in a slv_system_t master when list. |
| 169 |
*/ |
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|
| 171 |
extern int32 when_mindex(struct w_when *); |
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extern void when_set_mindex(struct w_when *,int32); |
| 173 |
/* |
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* index = when_mindex(when) |
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* when_set_mindex(when,index) |
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* int32 index; |
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* struct w_when *when; |
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* |
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* Sets or retrieves the index number of the given when as it |
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* appears in a slv_system_t master when list. |
| 181 |
*/ |
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|
| 183 |
extern int32 when_sindex(struct w_when *); |
| 184 |
extern void when_set_sindex(struct w_when *,int32); |
| 185 |
/* |
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* index = when_sindex(when) |
| 187 |
* when_set_sindex(when,index) |
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* int32 index; |
| 189 |
* struct w_when *when; |
| 190 |
* |
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* Sets or retrieves the index number of the given relation as it |
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* appears in a solvers when list. |
| 193 |
*/ |
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|
| 195 |
extern int32 when_model(const struct w_when *); |
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extern void when_set_model(struct w_when *,int32); |
| 197 |
/* |
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* index = when_model(when) |
| 199 |
* when_set_model(when,index) |
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* int32 index; |
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* struct w_when *when; |
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* |
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* Sets or retrieves the model number of the given when. |
| 204 |
* In a hierarchy, whens come associated with |
| 205 |
* models. Models are numbered from 1 to some upper limit. |
| 206 |
*/ |
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|
| 208 |
typedef struct when_filter_structure { |
| 209 |
uint32 matchbits; |
| 210 |
uint32 matchvalue; |
| 211 |
} when_filter_t; |
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|
| 213 |
|
| 214 |
/* |
| 215 |
* when filtration functions. |
| 216 |
* We could have 32 binary (one bit) flags a client may want to query |
| 217 |
* in arbitrary combinations and paying attention to only certain of |
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* the bits. We will provide a set of macros and functions for each of |
| 219 |
* these bits and for operations on the whole set. |
| 220 |
*/ |
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|
| 222 |
extern int32 when_apply_filter(struct w_when *,when_filter_t *); |
| 223 |
/* |
| 224 |
* value = when_apply_filter(when,filter) |
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* int32 value; |
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* struct w_when *when; |
| 227 |
* when_filter_t *filter; |
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* |
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* Returns 1 only if all of the positions specified in |
| 230 |
* filter->matchbits have the same values in |
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* filter->matchvalue and the when's flags value. |
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* Bits set to 0 in filter->matchbits are ignored for the test. |
| 233 |
*/ |
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|
| 235 |
extern uint32 when_flags(struct w_when *); |
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extern void when_set_flags(struct w_when *,uint32); |
| 237 |
/* |
| 238 |
* struct w_when *when; |
| 239 |
* uint32 flags; |
| 240 |
* |
| 241 |
* when_flags(when) returns the flags field of the when. |
| 242 |
* when_set_flags(when,flags) sets the entire flag field to the |
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* value of flags given. |
| 244 |
*/ |
| 245 |
|
| 246 |
extern uint32 when_flagbit(struct w_when *,uint32); |
| 247 |
/* |
| 248 |
* when_flagbit(when,name); |
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* struct w_when *when; |
| 250 |
* uint32 name; |
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* name should be a WHEN_xx flag defined above) |
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* Returns the value of the bit specified from the when flags. |
| 253 |
*/ |
| 254 |
|
| 255 |
extern void when_set_flagbit(struct w_when *,uint32, uint32); |
| 256 |
/* |
| 257 |
* struct w_when *when; |
| 258 |
* uint32 NAME,oneorzero; |
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* when_set_flagbit(when,NAME,oneorzero) |
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* |
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* Sets the bit, which should be referred to by its macro name, |
| 262 |
* on if oneorzero is >0 and off is oneorzero is 0. |
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* The macro names are the defined up at the top of this file. |
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* |
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* Example: when_set_flags(when,WHEN_INCLUDED,1) turns on the |
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* WHEN_INCLUDED bit. |
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* What it really does is: |
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* if (oneorzero) { |
| 269 |
* when->flags |= field; |
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* } else { |
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* when->flags &= ~field; |
| 272 |
* } |
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* In unix, see also man 3f bit or man not. |
| 274 |
*/ |
| 275 |
|
| 276 |
/* |
| 277 |
* the bit flags. |
| 278 |
*/ |
| 279 |
|
| 280 |
#define WHEN_INWHEN 0x1 |
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#define WHEN_INCLUDED 0x2 |
| 282 |
#define WHEN_VISITED 0x4 |
| 283 |
#define WHEN_CHANGES_STRUCTURE 0x8 |
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|
| 285 |
/* |
| 286 |
* WHEN_INWHEN Is this when nested in another when ? |
| 287 |
* WHEN_INCLUDED solvers, ui clients. user wants when in problem. |
| 288 |
* bit should be treated as readonly. use when_set_* |
| 289 |
* to change. |
| 290 |
* WHEN_VISITED Required for conditional analysis, for avoiding |
| 291 |
* to reanalyze a WHEN |
| 292 |
* WHEN_CHANGES_STRUCTURE Required for conditional analysis. Tells if |
| 293 |
* the sutructure of the different CASES is all equal or |
| 294 |
* otherwise |
| 295 |
*/ |
| 296 |
|
| 297 |
/* |
| 298 |
* the bit flag lookups |
| 299 |
*/ |
| 300 |
#ifdef NDEBUG |
| 301 |
#define when_inwhen(w) ((w)->flags & WHEN_INWHEN) |
| 302 |
#define when_included(w) ((w)->flags & WHEN_INCLUDED) |
| 303 |
#define when_visited(w) ((w)->flags & WHEN_VISITED) |
| 304 |
#define when_changes_structure(w) ((w)->flags & WHEN_CHANGES_STRUCTURE) |
| 305 |
#else |
| 306 |
#define when_inwhen(w) when_flagbit((w),WHEN_INWHEN) |
| 307 |
#define when_included(w) when_flagbit((w),WHEN_INCLUDED) |
| 308 |
#define when_visited(w) when_flagbit((w),WHEN_VISITED) |
| 309 |
#define when_changes_structure(w) when_flagbit((w),WHEN_CHANGES_STRUCTURE) |
| 310 |
#endif /* NDEBUG */ |
| 311 |
|
| 312 |
/* |
| 313 |
* bit flag assignments. any value other than 0 for bv turns the |
| 314 |
* named flag to 1. 0 sets it to 0. |
| 315 |
*/ |
| 316 |
#define when_set_inwhen(w,bv) \ |
| 317 |
when_set_flagbit((w),WHEN_INWHEN,(bv)) |
| 318 |
#define when_set_included(w,bv) \ |
| 319 |
when_set_flagbit((w),WHEN_INCLUDED,(bv)) |
| 320 |
#define when_set_visited(w,bv) \ |
| 321 |
when_set_flagbit((w),WHEN_VISITED,(bv)) |
| 322 |
#define when_set_changes_structure(w,bv) \ |
| 323 |
when_set_flagbit((w),WHEN_CHANGES_STRUCTURE,(bv)) |
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|
| 325 |
|
| 326 |
|
| 327 |
/* |
| 328 |
* When Case utility functions |
| 329 |
*/ |
| 330 |
|
| 331 |
|
| 332 |
struct when_case { |
| 333 |
int32 values[MAX_VAR_IN_LIST]; /* values of conditional variables */ |
| 334 |
struct gl_list_t *rels; /* pointer to relations */ |
| 335 |
struct gl_list_t *logrels; /* pointer to logrelations */ |
| 336 |
struct gl_list_t *whens; /* pointer to whens */ |
| 337 |
int32 case_number; /* number of case */ |
| 338 |
int32 num_rels; /* number of relations */ |
| 339 |
int32 num_inc_var; /* number of incident variables */ |
| 340 |
int32 *ind_inc; /* master indeces of incidences */ |
| 341 |
uint32 flags; /* flags ?? */ |
| 342 |
}; |
| 343 |
|
| 344 |
|
| 345 |
extern struct when_case *when_case_create(struct when_case *); |
| 346 |
/* |
| 347 |
* when_case_create(newcase) |
| 348 |
* struct when_case *newcase; |
| 349 |
* |
| 350 |
* Creates a when case. |
| 351 |
* If the case supplied is NULL, we allocate the memory for the |
| 352 |
* case we return, else we just init the memory you hand us and |
| 353 |
* return it to you. |
| 354 |
*/ |
| 355 |
|
| 356 |
extern void when_case_destroy(struct when_case *); |
| 357 |
/* |
| 358 |
* when_case_destroy(wc) |
| 359 |
* struct when_case *wc; |
| 360 |
* |
| 361 |
* Destroys a when case. |
| 362 |
*/ |
| 363 |
|
| 364 |
extern int32 *when_case_values_list( struct when_case *); |
| 365 |
extern void when_case_set_values_list( struct when_case *, int32 *values); |
| 366 |
/* |
| 367 |
* values = when_case_values_list(wc) |
| 368 |
* when_case_set_values_list(wc,vallist) |
| 369 |
* int32 *vallist; |
| 370 |
* struct when_case *wc; |
| 371 |
* |
| 372 |
* Sets or retrieves the list of values of the given case |
| 373 |
*/ |
| 374 |
|
| 375 |
extern struct gl_list_t *when_case_rels_list( struct when_case *); |
| 376 |
extern void when_case_set_rels_list( struct when_case *, struct gl_list_t *); |
| 377 |
/* |
| 378 |
* rels = when_case_rels_list(wc) |
| 379 |
* when_case_set_rels_list(wc,rlist) |
| 380 |
* struct gl_list_t *rlist; |
| 381 |
* struct when_case *wc; |
| 382 |
* |
| 383 |
* Sets or retrieves the list of rels of the given case |
| 384 |
*/ |
| 385 |
|
| 386 |
extern struct gl_list_t *when_case_logrels_list( struct when_case *); |
| 387 |
extern void when_case_set_logrels_list(struct when_case *,struct gl_list_t *); |
| 388 |
/* |
| 389 |
* logrels = when_case_logrels_list(wc) |
| 390 |
* when_case_set_logrels_list(wc,lrlist) |
| 391 |
* struct gl_list_t *lrlist; |
| 392 |
* struct when_case *wc; |
| 393 |
* |
| 394 |
* Sets or retrieves the list of logrels of the given case |
| 395 |
*/ |
| 396 |
|
| 397 |
extern struct gl_list_t *when_case_whens_list( struct when_case *); |
| 398 |
extern void when_case_set_whens_list( struct when_case *, struct gl_list_t *); |
| 399 |
/* |
| 400 |
* whens = when_case_whens_list(wc) |
| 401 |
* when_case_set_whens_list(wc,wlist) |
| 402 |
* struct gl_list_t *wlist; |
| 403 |
* struct when_case *wc; |
| 404 |
* |
| 405 |
* Sets or retrieves the list of whens nested in the given case |
| 406 |
*/ |
| 407 |
|
| 408 |
extern int32 when_case_case_number(struct when_case *); |
| 409 |
extern void when_case_set_case_number(struct when_case *,int32); |
| 410 |
/* |
| 411 |
* struct when_case *wc; |
| 412 |
* int32 case_number; |
| 413 |
* |
| 414 |
* when_case_case_number(wc) returns the number of the case wc. |
| 415 |
* when_case_set_case_number(wc,case_number) sets the case_number field of |
| 416 |
* a case to the value of the case_number given. |
| 417 |
*/ |
| 418 |
|
| 419 |
extern int32 when_case_num_rels( struct when_case *); |
| 420 |
extern void when_case_set_num_rels(struct when_case *, int32); |
| 421 |
/* |
| 422 |
* struct when_case *wc; |
| 423 |
* int32 num_rels; |
| 424 |
* |
| 425 |
* when_case_num_rels(wc) returns the number of the relations in wc. |
| 426 |
* when_case_set_num_rels(wc,num_rels) sets the num_rels field of |
| 427 |
* a case to the value of the num_rels given. |
| 428 |
*/ |
| 429 |
|
| 430 |
extern int32 when_case_num_inc_var( struct when_case *); |
| 431 |
extern void when_case_set_num_inc_var(struct when_case *, int32); |
| 432 |
/* |
| 433 |
* struct when_case *wc; |
| 434 |
* int32 num_inc_var; |
| 435 |
* |
| 436 |
* when_case_num_inc_var(wc) returns the number of the variables incident |
| 437 |
* in the relations contained in wc. |
| 438 |
* when_case_set_num_inc_var(wc,num_inc_var) sets the num_inc_var field of |
| 439 |
* a case to the value of the num_inc_var given. |
| 440 |
*/ |
| 441 |
|
| 442 |
extern int32 *when_case_ind_inc( struct when_case *); |
| 443 |
extern void when_case_set_ind_inc(struct when_case *, int32*); |
| 444 |
/* |
| 445 |
* struct when_case *wc; |
| 446 |
* int32 *ind_inc; |
| 447 |
* |
| 448 |
* when_case_ind_inc(wc) returns the array of the master indices of |
| 449 |
* the variables incident in the relations contained in wc. |
| 450 |
* when_case_set_ind_inc(wc,ind_inc) sets the ind_inc pointer of |
| 451 |
* a case to the value of the array ind_inc given. |
| 452 |
*/ |
| 453 |
|
| 454 |
typedef struct when_case_filter_structure { |
| 455 |
uint32 matchbits; |
| 456 |
uint32 matchvalue; |
| 457 |
} when_case_filter_t; |
| 458 |
|
| 459 |
|
| 460 |
/* |
| 461 |
* case filtration functions |
| 462 |
*/ |
| 463 |
|
| 464 |
extern int32 when_case_apply_filter(struct when_case *,when_case_filter_t *); |
| 465 |
/* |
| 466 |
* value = when_case_apply_filter(wc,filter) |
| 467 |
* int32 value; |
| 468 |
* struct when_case *wc; |
| 469 |
* when_case_filter_t *filter; |
| 470 |
* |
| 471 |
* Returns 1 only if all of the positions specified in |
| 472 |
* filter->matchbits have the same values in |
| 473 |
* filter->matchvalue and the when's flags value. |
| 474 |
* Bits set to 0 in filter->matchbits are ignored for the test. |
| 475 |
*/ |
| 476 |
|
| 477 |
extern uint32 when_case_flags(struct when_case *); |
| 478 |
extern void when_case_set_flags(struct when_case *,uint32); |
| 479 |
/* |
| 480 |
* struct when_case *wc; |
| 481 |
* uint32 flags; |
| 482 |
* |
| 483 |
* when_case_flags(wc) returns the flags field of the case wc. |
| 484 |
* when_case_set_flags(wc,flags) sets the entire flag field to the |
| 485 |
* value of flags given. |
| 486 |
*/ |
| 487 |
|
| 488 |
extern uint32 when_case_flagbit(struct when_case *,uint32); |
| 489 |
/* |
| 490 |
* when_case_flagbit(wc,name); |
| 491 |
* struct when_case *wc; |
| 492 |
* uint32 name; |
| 493 |
* name should be a WHEN_CASE_xx flag |
| 494 |
* Returns the value of the bit specified from the case flags. |
| 495 |
*/ |
| 496 |
|
| 497 |
extern void when_case_set_flagbit(struct when_case *,uint32, uint32); |
| 498 |
/* |
| 499 |
* struct when_case *wc; |
| 500 |
* uint32 NAME,oneorzero; |
| 501 |
* when_case_set_flagbit(wc,NAME,oneorzero) |
| 502 |
* |
| 503 |
* Sets the bit, which should be referred to by its macro name, |
| 504 |
* on if oneorzero is >0 and off is oneorzero is 0. |
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* The macro names are the defined up at the top of this file. |
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*/ |
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|
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/* |
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* the bit flags. |
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*/ |
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|
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#define WHEN_CASE_ACTIVE 0x1 |
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|
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/* |
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* WHEN_CASE_ACTIVE Is this case active ? |
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*/ |
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|
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/* |
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* the bit flag lookups |
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*/ |
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#ifdef NDEBUG |
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#define when_case_active(c) ((c)->flags & WHEN_CASE_ACTIVE) |
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#else |
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#define when_case_active(c) when_case_flagbit((c),WHEN_CASE_ACTIVE) |
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#endif /* NDEBUG */ |
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|
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/* |
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* bit flag assignments. any value other than 0 for bv turns the |
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* named flag to 1. 0 sets it to 0. |
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*/ |
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#define when_case_set_active(c,bv) \ |
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when_case_set_flagbit((c),WHEN_CASE_ACTIVE,(bv)) |
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|
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#endif /* conditional__already_included */ |
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