1 |
/* printf */ |
2 |
#include <stdio.h> |
3 |
/* EXIT_SUCCESS */ |
4 |
#include <stdlib.h> |
5 |
/* NULL */ |
6 |
#include <stddef.h> |
7 |
/* dlopen, dlsym, dlerror */ |
8 |
#include <dlfcn.h> |
9 |
/* assert */ |
10 |
#include <assert.h> |
11 |
|
12 |
#define HASHTBLSIZE 65536 |
13 |
|
14 |
/* First, define some types. */ |
15 |
|
16 |
/* A value of some type */ |
17 |
typedef struct { |
18 |
enum { |
19 |
integer, |
20 |
string, |
21 |
func, /* Function pointer */ |
22 |
symb, |
23 |
list |
24 |
} type; /* Type of stack element */ |
25 |
|
26 |
union { |
27 |
void *ptr; /* Pointer to the content */ |
28 |
int val; /* ...or an integer */ |
29 |
} content; /* Stores a pointer or an integer */ |
30 |
|
31 |
int refcount; /* Reference counter */ |
32 |
|
33 |
} value; |
34 |
|
35 |
/* A symbol with a name and possible value */ |
36 |
/* (These do not need reference counters, they are kept unique by |
37 |
hashing.) */ |
38 |
typedef struct symbol_struct { |
39 |
char *id; /* Symbol name */ |
40 |
value *val; /* The value (if any) bound to it */ |
41 |
struct symbol_struct *next; /* In case of hashing conflicts, a */ |
42 |
} symbol; /* symbol is a kind of stack item. */ |
43 |
|
44 |
/* A type for a hash table for symbols */ |
45 |
typedef symbol *hashtbl[HASHTBLSIZE]; /* Hash table declaration */ |
46 |
|
47 |
/* An item (value) on a stack */ |
48 |
typedef struct stackitem_struct |
49 |
{ |
50 |
value *item; /* The value on the stack */ |
51 |
struct stackitem_struct *next; /* Next item */ |
52 |
} stackitem; |
53 |
|
54 |
/* An environment; gives access to the stack and a hash table of |
55 |
defined symbols */ |
56 |
typedef struct { |
57 |
stackitem *head; /* Head of the stack */ |
58 |
hashtbl symbols; /* Hash table of all variable bindings */ |
59 |
int err; /* Error flag */ |
60 |
} environment; |
61 |
|
62 |
/* A type for pointers to external functions */ |
63 |
typedef void (*funcp)(environment *); /* funcp is a pointer to a void |
64 |
function (environment *) */ |
65 |
|
66 |
/* Initialize a newly created environment */ |
67 |
void init_env(environment *env) |
68 |
{ |
69 |
long i; |
70 |
|
71 |
env->err=0; |
72 |
for(i= 0; i<HASHTBLSIZE; i++) |
73 |
env->symbols[i]= NULL; |
74 |
} |
75 |
|
76 |
/* Returns a pointer to a pointer to an element in the hash table. */ |
77 |
symbol **hash(hashtbl in_hashtbl, const char *in_string) |
78 |
{ |
79 |
long i= 0; |
80 |
unsigned long out_hash= 0; |
81 |
char key= '\0'; |
82 |
symbol **position; |
83 |
|
84 |
while(1){ /* Hash in_string */ |
85 |
key= in_string[i++]; |
86 |
if(key=='\0') |
87 |
break; |
88 |
out_hash= out_hash*32+key; |
89 |
} |
90 |
|
91 |
out_hash= out_hash%HASHTBLSIZE; |
92 |
position= &(in_hashtbl[out_hash]); |
93 |
|
94 |
while(1){ |
95 |
if(*position==NULL) /* If empty */ |
96 |
return position; |
97 |
|
98 |
if(strcmp(in_string, (*position)->id)==0) /* If match */ |
99 |
return position; |
100 |
|
101 |
position= &((*position)->next); /* Try next */ |
102 |
} |
103 |
} |
104 |
|
105 |
/* Generic push function. */ |
106 |
void push(stackitem** stack_head, stackitem* in_item) |
107 |
{ |
108 |
in_item->next= *stack_head; |
109 |
*stack_head= in_item; |
110 |
} |
111 |
|
112 |
/* Push a value onto the stack */ |
113 |
void push_val(stackitem **stack_head, value *val) |
114 |
{ |
115 |
stackitem *new_item= malloc(sizeof(stackitem)); |
116 |
new_item->item= val; |
117 |
val->refcount++; |
118 |
push(stack_head, new_item); |
119 |
} |
120 |
|
121 |
/* Push an integer onto the stack. */ |
122 |
void push_int(stackitem **stack_head, int in_val) |
123 |
{ |
124 |
value *new_value= malloc(sizeof(value)); |
125 |
stackitem *new_item= malloc(sizeof(stackitem)); |
126 |
new_item->item= new_value; |
127 |
|
128 |
new_value->content.val= in_val; |
129 |
new_value->type= integer; |
130 |
new_value->refcount=1; |
131 |
|
132 |
push(stack_head, new_item); |
133 |
} |
134 |
|
135 |
/* Copy a string onto the stack. */ |
136 |
void push_cstring(stackitem **stack_head, const char *in_string) |
137 |
{ |
138 |
value *new_value= malloc(sizeof(value)); |
139 |
stackitem *new_item= malloc(sizeof(stackitem)); |
140 |
new_item->item=new_value; |
141 |
|
142 |
new_value->content.ptr= malloc(strlen(in_string)+1); |
143 |
strcpy(new_value->content.ptr, in_string); |
144 |
new_value->type= string; |
145 |
new_value->refcount=1; |
146 |
|
147 |
push(stack_head, new_item); |
148 |
} |
149 |
|
150 |
/* Push a symbol onto the stack. */ |
151 |
void push_sym(environment *env, const char *in_string) |
152 |
{ |
153 |
stackitem *new_item; /* The new stack item */ |
154 |
/* ...which will contain... */ |
155 |
value *new_value; /* A new symbol value */ |
156 |
/* ...which might point to... */ |
157 |
symbol **new_symbol; /* (if needed) A new actual symbol */ |
158 |
/* ...which, if possible, will be bound to... */ |
159 |
value *new_fvalue; /* (if needed) A new function value */ |
160 |
/* ...which will point to... */ |
161 |
void *funcptr; /* A function pointer */ |
162 |
|
163 |
static void *handle= NULL; /* Dynamic linker handle */ |
164 |
|
165 |
/* Create a new stack item containing a new value */ |
166 |
new_item= malloc(sizeof(stackitem)); |
167 |
new_value= malloc(sizeof(value)); |
168 |
new_item->item=new_value; |
169 |
|
170 |
/* The new value is a symbol */ |
171 |
new_value->type= symb; |
172 |
new_value->refcount= 1; |
173 |
|
174 |
/* Look up the symbol name in the hash table */ |
175 |
new_symbol= hash(env->symbols, in_string); |
176 |
new_value->content.ptr= *new_symbol; |
177 |
|
178 |
if(*new_symbol==NULL) { /* If symbol was undefined */ |
179 |
|
180 |
/* Create a new symbol */ |
181 |
(*new_symbol)= malloc(sizeof(symbol)); |
182 |
(*new_symbol)->val= NULL; /* undefined value */ |
183 |
(*new_symbol)->next= NULL; |
184 |
(*new_symbol)->id= malloc(strlen(in_string)+1); |
185 |
strcpy((*new_symbol)->id, in_string); |
186 |
|
187 |
/* Intern the new symbol in the hash table */ |
188 |
new_value->content.ptr= *new_symbol; |
189 |
|
190 |
/* Try to load the symbol name as an external function, to see if |
191 |
we should bind the symbol to a new function pointer value */ |
192 |
if(handle==NULL) /* If no handle */ |
193 |
handle= dlopen(NULL, RTLD_LAZY); |
194 |
|
195 |
funcptr= dlsym(handle, in_string); /* Get function pointer */ |
196 |
if(dlerror()==NULL) { /* If a function was found */ |
197 |
new_fvalue= malloc(sizeof(value)); /* Create a new value */ |
198 |
new_fvalue->type=func; /* The new value is a function pointer */ |
199 |
new_fvalue->content.ptr=funcptr; /* Store function pointer */ |
200 |
(*new_symbol)->val= new_fvalue; /* Bind the symbol to the new |
201 |
function value */ |
202 |
new_fvalue->refcount= 1; |
203 |
} |
204 |
} |
205 |
push(&(env->head), new_item); |
206 |
} |
207 |
|
208 |
void printerr(const char* in_string) { |
209 |
fprintf(stderr, "Err: %s\n", in_string); |
210 |
} |
211 |
|
212 |
/* Throw away a value */ |
213 |
void free_val(value *val){ |
214 |
stackitem *item, *temp; |
215 |
|
216 |
val->refcount--; /* Decrease the reference count */ |
217 |
if(val->refcount == 0){ |
218 |
switch (val->type){ /* and free the contents if necessary */ |
219 |
case string: |
220 |
free(val->content.ptr); |
221 |
case list: /* lists needs to be freed recursively */ |
222 |
item=val->content.ptr; |
223 |
while(item != NULL) { /* for all stack items */ |
224 |
free_val(item->item); /* free the value */ |
225 |
temp=item->next; /* save next ptr */ |
226 |
free(item); /* free the stackitem */ |
227 |
item=temp; /* go to next stackitem */ |
228 |
} |
229 |
free(val); /* Free the actual list value */ |
230 |
break; |
231 |
default: |
232 |
break; |
233 |
} |
234 |
} |
235 |
} |
236 |
|
237 |
/* Discard the top element of the stack. */ |
238 |
extern void toss(environment *env) |
239 |
{ |
240 |
stackitem *temp= env->head; |
241 |
|
242 |
if((env->head)==NULL) { |
243 |
printerr("Stack empty"); |
244 |
env->err=1; |
245 |
return; |
246 |
} |
247 |
|
248 |
free_val(env->head->item); /* Free the value */ |
249 |
env->head= env->head->next; /* Remove the top stack item */ |
250 |
free(temp); /* Free the old top stack item */ |
251 |
} |
252 |
|
253 |
/* Print newline. */ |
254 |
extern void nl() |
255 |
{ |
256 |
printf("\n"); |
257 |
} |
258 |
|
259 |
/* Prints the top element of the stack. */ |
260 |
void print_h(stackitem *stack_head) |
261 |
{ |
262 |
switch(stack_head->item->type) { |
263 |
case integer: |
264 |
printf("%d", stack_head->item->content.val); |
265 |
break; |
266 |
case string: |
267 |
printf("\"%s\"", (char*)stack_head->item->content.ptr); |
268 |
break; |
269 |
case symb: |
270 |
printf("'%s'", ((symbol *)(stack_head->item->content.ptr))->id); |
271 |
break; |
272 |
case func: |
273 |
printf("#<function %p>", (funcp)(stack_head->item->content.ptr)); |
274 |
break; |
275 |
case list: |
276 |
printf("#<list %p>", (funcp)(stack_head->item->content.ptr)); |
277 |
break; |
278 |
default: |
279 |
printf("#<unknown %p>", (funcp)(stack_head->item->content.ptr)); |
280 |
break; |
281 |
} |
282 |
} |
283 |
|
284 |
extern void print_(environment *env) { |
285 |
if(env->head==NULL) { |
286 |
printerr("Stack empty"); |
287 |
env->err=1; |
288 |
return; |
289 |
} |
290 |
print_h(env->head); |
291 |
} |
292 |
|
293 |
/* Prints the top element of the stack and then discards it. */ |
294 |
extern void print(environment *env) |
295 |
{ |
296 |
print_(env); |
297 |
if(env->err) return; |
298 |
toss(env); |
299 |
} |
300 |
|
301 |
/* Only to be called by function printstack. */ |
302 |
void print_st(stackitem *stack_head, long counter) |
303 |
{ |
304 |
if(stack_head->next != NULL) |
305 |
print_st(stack_head->next, counter+1); |
306 |
printf("%ld: ", counter); |
307 |
print_h(stack_head); |
308 |
nl(); |
309 |
} |
310 |
|
311 |
|
312 |
|
313 |
/* Prints the stack. */ |
314 |
extern void printstack(environment *env) |
315 |
{ |
316 |
if(env->head == NULL) { |
317 |
printerr("Stack empty"); |
318 |
env->err=1; |
319 |
return; |
320 |
} |
321 |
print_st(env->head, 1); |
322 |
nl(); |
323 |
} |
324 |
|
325 |
/* Swap the two top elements on the stack. */ |
326 |
extern void swap(environment *env) |
327 |
{ |
328 |
stackitem *temp= env->head; |
329 |
|
330 |
if((env->head)==NULL) { |
331 |
printerr("Stack empty"); |
332 |
env->err=1; |
333 |
return; |
334 |
} |
335 |
|
336 |
if(env->head->next==NULL) { |
337 |
printerr("Not enough arguments"); |
338 |
env->err=1; |
339 |
return; |
340 |
} |
341 |
|
342 |
env->head= env->head->next; |
343 |
temp->next= env->head->next; |
344 |
env->head->next= temp; |
345 |
} |
346 |
|
347 |
stackitem* copy(stackitem* in_item) |
348 |
{ |
349 |
stackitem *out_item= malloc(sizeof(stackitem)); |
350 |
|
351 |
memcpy(out_item, in_item, sizeof(stackitem)); |
352 |
out_item->next= NULL; |
353 |
|
354 |
return out_item; |
355 |
} |
356 |
|
357 |
/* Recall a value from a symbol, if bound */ |
358 |
extern void rcl(environment *env) |
359 |
{ |
360 |
value *val; |
361 |
|
362 |
if(env->head == NULL) { |
363 |
printerr("Stack empty"); |
364 |
env->err=1; |
365 |
return; |
366 |
} |
367 |
|
368 |
if(env->head->item->type!=symb) { |
369 |
printerr("Not a symbol"); |
370 |
env->err=1; |
371 |
return; |
372 |
} |
373 |
|
374 |
val=((symbol *)(env->head->item->content.ptr))->val; |
375 |
if(val == NULL){ |
376 |
printerr("Unbound variable"); |
377 |
env->err=1; |
378 |
return; |
379 |
} |
380 |
toss(env); /* toss the symbol */ |
381 |
if(env->err) return; |
382 |
push_val(&(env->head), val); /* Return its bound value */ |
383 |
} |
384 |
|
385 |
/* If the top element is a symbol, determine if it's bound to a |
386 |
function value, and if it is, toss the symbol and execute the |
387 |
function. */ |
388 |
extern void eval(environment *env) |
389 |
{ |
390 |
funcp in_func; |
391 |
if(env->head==NULL) { |
392 |
printerr("Stack empty"); |
393 |
env->err=1; |
394 |
return; |
395 |
} |
396 |
|
397 |
/* if it's a symbol */ |
398 |
if(env->head->item->type==symb) { |
399 |
|
400 |
rcl(env); /* get its contents */ |
401 |
if(env->err) return; |
402 |
if(env->head->item->type!=symb){ /* don't recurse symbols */ |
403 |
eval(env); /* evaluate the value */ |
404 |
return; |
405 |
} |
406 |
} |
407 |
|
408 |
/* If it's a lone function value, run it */ |
409 |
if(env->head->item->type==func) { |
410 |
in_func= (funcp)(env->head->item->content.ptr); |
411 |
toss(env); |
412 |
if(env->err) return; |
413 |
(*in_func)(env); |
414 |
} |
415 |
} |
416 |
|
417 |
/* Make a list. */ |
418 |
extern void pack(environment *env) |
419 |
{ |
420 |
void* delimiter; |
421 |
stackitem *iterator, *temp; |
422 |
value *pack; |
423 |
|
424 |
delimiter= env->head->item->content.ptr; /* Get delimiter */ |
425 |
toss(env); |
426 |
|
427 |
iterator= env->head; |
428 |
|
429 |
if(iterator==NULL || iterator->item->content.ptr==delimiter) { |
430 |
temp= NULL; |
431 |
toss(env); |
432 |
} else { |
433 |
/* Search for first delimiter */ |
434 |
while(iterator->next!=NULL |
435 |
&& iterator->next->item->content.ptr!=delimiter) |
436 |
iterator= iterator->next; |
437 |
|
438 |
/* Extract list */ |
439 |
temp= env->head; |
440 |
env->head= iterator->next; |
441 |
iterator->next= NULL; |
442 |
|
443 |
if(env->head!=NULL) |
444 |
toss(env); |
445 |
} |
446 |
|
447 |
/* Push list */ |
448 |
pack= malloc(sizeof(value)); |
449 |
pack->type= list; |
450 |
pack->content.ptr= temp; |
451 |
pack->refcount= 1; |
452 |
|
453 |
temp= malloc(sizeof(stackitem)); |
454 |
temp->item= pack; |
455 |
|
456 |
push(&(env->head), temp); |
457 |
} |
458 |
|
459 |
/* Parse input. */ |
460 |
int stack_read(environment *env, char *in_line) |
461 |
{ |
462 |
char *temp, *rest; |
463 |
int itemp; |
464 |
size_t inlength= strlen(in_line)+1; |
465 |
int convert= 0; |
466 |
static int non_eval_flag= 0; |
467 |
|
468 |
temp= malloc(inlength); |
469 |
rest= malloc(inlength); |
470 |
|
471 |
do { |
472 |
/* If string */ |
473 |
if((convert= sscanf(in_line, "\"%[^\"\n\r]\" %[^\n\r]", temp, rest))) { |
474 |
push_cstring(&(env->head), temp); |
475 |
break; |
476 |
} |
477 |
/* If integer */ |
478 |
if((convert= sscanf(in_line, "%d %[^\n\r]", &itemp, rest))) { |
479 |
push_int(&(env->head), itemp); |
480 |
break; |
481 |
} |
482 |
/* Escape ';' with '\' */ |
483 |
if((convert= sscanf(in_line, "\\%c%[^\n\r]", temp, rest))) { |
484 |
temp[1]= '\0'; |
485 |
push_sym(env, temp); |
486 |
break; |
487 |
} |
488 |
/* If symbol */ |
489 |
if((convert= sscanf(in_line, "%[^][ ;\n\r]%[^\n\r]", temp, rest))) { |
490 |
push_sym(env, temp); |
491 |
break; |
492 |
} |
493 |
/* If single char */ |
494 |
if((convert= sscanf(in_line, "%c%[^\n\r]", temp, rest))) { |
495 |
if(*temp==';') { |
496 |
if(!non_eval_flag) { |
497 |
eval(env); /* Evaluate top element */ |
498 |
break; |
499 |
} |
500 |
|
501 |
push_sym(env, ";"); |
502 |
break; |
503 |
} |
504 |
|
505 |
if(*temp==']') { |
506 |
push_sym(env, "["); |
507 |
pack(env); |
508 |
if(non_eval_flag!=0) |
509 |
non_eval_flag--; |
510 |
break; |
511 |
} |
512 |
|
513 |
if(*temp=='[') { |
514 |
push_sym(env, "["); |
515 |
non_eval_flag++; |
516 |
break; |
517 |
} |
518 |
} |
519 |
} while(0); |
520 |
|
521 |
|
522 |
free(temp); |
523 |
|
524 |
if(convert<2) { |
525 |
free(rest); |
526 |
return 0; |
527 |
} |
528 |
|
529 |
stack_read(env, rest); |
530 |
|
531 |
free(rest); |
532 |
return 1; |
533 |
} |
534 |
|
535 |
/* Relocate elements of the list on the stack. */ |
536 |
extern void expand(environment *env) |
537 |
{ |
538 |
stackitem *temp, *new_head; |
539 |
|
540 |
/* Is top element a list? */ |
541 |
if(env->head==NULL || env->head->item->type!=list) { |
542 |
printerr("Stack empty or not a list"); |
543 |
env->err=1; |
544 |
return; |
545 |
} |
546 |
|
547 |
/* The first list element is the new stack head */ |
548 |
new_head= temp= env->head->item->content.ptr; |
549 |
|
550 |
env->head->item->refcount++; |
551 |
toss(env); |
552 |
|
553 |
/* Find the end of the list */ |
554 |
while(temp->next!=NULL) |
555 |
temp= temp->next; |
556 |
|
557 |
/* Connect the tail of the list with the old stack head */ |
558 |
temp->next= env->head; |
559 |
env->head= new_head; /* ...and voila! */ |
560 |
|
561 |
} |
562 |
|
563 |
/* Compares two elements by reference. */ |
564 |
extern void eq(environment *env) |
565 |
{ |
566 |
void *left, *right; |
567 |
int result; |
568 |
|
569 |
if((env->head)==NULL || env->head->next==NULL) { |
570 |
printerr("Not enough elements to compare"); |
571 |
env->err=1; |
572 |
return; |
573 |
} |
574 |
|
575 |
left= env->head->item->content.ptr; |
576 |
swap(env); |
577 |
right= env->head->item->content.ptr; |
578 |
result= (left==right); |
579 |
|
580 |
toss(env); toss(env); |
581 |
push_int(&(env->head), result); |
582 |
} |
583 |
|
584 |
/* Negates the top element on the stack. */ |
585 |
extern void not(environment *env) |
586 |
{ |
587 |
int val; |
588 |
|
589 |
if((env->head)==NULL || env->head->item->type!=integer) { |
590 |
printerr("Stack empty or element is not a integer"); |
591 |
env->err=1; |
592 |
return; |
593 |
} |
594 |
|
595 |
val= env->head->item->content.val; |
596 |
toss(env); |
597 |
push_int(&(env->head), !val); |
598 |
} |
599 |
|
600 |
/* Compares the two top elements on the stack and return 0 if they're the |
601 |
same. */ |
602 |
extern void neq(environment *env) |
603 |
{ |
604 |
eq(env); |
605 |
not(env); |
606 |
} |
607 |
|
608 |
/* Give a symbol some content. */ |
609 |
extern void def(environment *env) |
610 |
{ |
611 |
symbol *sym; |
612 |
|
613 |
/* Needs two values on the stack, the top one must be a symbol */ |
614 |
if(env->head==NULL || env->head->next==NULL |
615 |
|| env->head->item->type!=symb) { |
616 |
printerr("Define what?"); |
617 |
env->err=1; |
618 |
return; |
619 |
} |
620 |
|
621 |
/* long names are a pain */ |
622 |
sym=env->head->item->content.ptr; |
623 |
|
624 |
/* if the symbol was bound to something else, throw it away */ |
625 |
if(sym->val != NULL) |
626 |
free_val(sym->val); |
627 |
|
628 |
/* Bind the symbol to the value */ |
629 |
sym->val= env->head->next->item; |
630 |
sym->val->refcount++; /* Increase the reference counter */ |
631 |
|
632 |
toss(env); toss(env); |
633 |
} |
634 |
|
635 |
/* Quit stack. */ |
636 |
extern void quit(environment *env) |
637 |
{ |
638 |
exit(EXIT_SUCCESS); |
639 |
} |
640 |
|
641 |
/* Clear stack */ |
642 |
extern void clear(environment *env) |
643 |
{ |
644 |
while(env->head!=NULL) |
645 |
toss(env); |
646 |
} |
647 |
|
648 |
/* List all defined words */ |
649 |
extern void words(environment *env) |
650 |
{ |
651 |
symbol *temp; |
652 |
int i; |
653 |
|
654 |
for(i= 0; i<HASHTBLSIZE; i++) { |
655 |
temp= env->symbols[i]; |
656 |
while(temp!=NULL) { |
657 |
printf("%s\n", temp->id); |
658 |
temp= temp->next; |
659 |
} |
660 |
} |
661 |
} |
662 |
|
663 |
/* Forgets a symbol (remove it from the hash table) */ |
664 |
extern void forget(environment *env) |
665 |
{ |
666 |
char* sym_id; |
667 |
stackitem *stack_head= env->head; |
668 |
symbol **hash_entry, *temp; |
669 |
|
670 |
if(stack_head==NULL || stack_head->item->type!=symb) { |
671 |
printerr("Stack empty or not a symbol"); |
672 |
return; |
673 |
} |
674 |
|
675 |
sym_id= ((symbol*)(stack_head->item->content.ptr))->id; |
676 |
toss(env); |
677 |
|
678 |
hash_entry= hash(env->symbols, sym_id); |
679 |
temp= *hash_entry; |
680 |
*hash_entry= (*hash_entry)->next; |
681 |
|
682 |
if(temp->val!=NULL) { |
683 |
free_val(temp->val); |
684 |
} |
685 |
free(temp->id); |
686 |
free(temp); |
687 |
} |
688 |
|
689 |
int main() |
690 |
{ |
691 |
environment myenv; |
692 |
char in_string[100]; |
693 |
|
694 |
init_env(&myenv); |
695 |
|
696 |
printf("okidok\n "); |
697 |
|
698 |
while(fgets(in_string, 100, stdin) != NULL) { |
699 |
stack_read(&myenv, in_string); |
700 |
if(myenv.err) { |
701 |
printf("(error %d) ", myenv.err); |
702 |
myenv.err=0; |
703 |
} |
704 |
printf("okidok\n "); |
705 |
} |
706 |
|
707 |
exit(EXIT_SUCCESS); |
708 |
} |