48 |
{ |
{ |
49 |
int i; |
int i; |
50 |
|
|
51 |
env->gc_limit= 20; |
env->gc_limit= 200; |
52 |
env->gc_count= 0; |
env->gc_count= 0; |
53 |
env->gc_ref= NULL; |
env->gc_ref= NULL; |
54 |
env->gc_protect= NULL; |
env->gc_protect= NULL; |
63 |
env->interactive= 1; |
env->interactive= 1; |
64 |
} |
} |
65 |
|
|
66 |
void printerr(const char* in_string) { |
void printerr(const char* in_string) |
67 |
|
{ |
68 |
fprintf(stderr, "Err: %s\n", in_string); |
fprintf(stderr, "Err: %s\n", in_string); |
69 |
} |
} |
70 |
|
|
82 |
env->head= env->head->next; /* Remove the top stack item */ |
env->head= env->head->next; /* Remove the top stack item */ |
83 |
free(temp); /* Free the old top stack item */ |
free(temp); /* Free the old top stack item */ |
84 |
|
|
85 |
gc_init(env); |
env->gc_limit--; |
86 |
} |
} |
87 |
|
|
88 |
/* Returns a pointer to a pointer to an element in the hash table. */ |
/* Returns a pointer to a pointer to an element in the hash table. */ |
114 |
} |
} |
115 |
} |
} |
116 |
|
|
117 |
value* new_val(environment *env) { |
/* Create new value */ |
118 |
|
value* new_val(environment *env) |
119 |
|
{ |
120 |
value *nval= malloc(sizeof(value)); |
value *nval= malloc(sizeof(value)); |
121 |
stackitem *nitem= malloc(sizeof(stackitem)); |
stackitem *nitem= malloc(sizeof(stackitem)); |
122 |
|
|
128 |
|
|
129 |
env->gc_count++; |
env->gc_count++; |
130 |
|
|
|
protect(env, nval); |
|
|
gc_init(env); |
|
|
unprotect(env); |
|
|
|
|
131 |
return nval; |
return nval; |
132 |
} |
} |
133 |
|
|
134 |
void gc_mark(value *val) { |
/* Mark values recursively. |
135 |
|
Marked values are not collected by the GC. */ |
136 |
|
inline void gc_mark(value *val) |
137 |
|
{ |
138 |
stackitem *iterator; |
stackitem *iterator; |
139 |
|
|
140 |
if(val==NULL || val->gc_garb==0) |
if(val==NULL || val->gc_garb==0) |
152 |
} |
} |
153 |
} |
} |
154 |
|
|
155 |
extern void gc_init(environment *env) { |
inline void gc_maybe(environment *env) |
156 |
|
{ |
157 |
|
if(env->gc_count < env->gc_limit) |
158 |
|
return; |
159 |
|
else |
160 |
|
return gc_init(env); |
161 |
|
} |
162 |
|
|
163 |
|
/* Start GC */ |
164 |
|
extern void gc_init(environment *env) |
165 |
|
{ |
166 |
stackitem *new_head= NULL, *titem, *iterator; |
stackitem *new_head= NULL, *titem, *iterator; |
167 |
symbol *tsymb; |
symbol *tsymb; |
168 |
int i; |
int i; |
169 |
|
|
|
if(env->gc_count < env->gc_limit) |
|
|
return; |
|
|
|
|
170 |
/* Garb by default */ |
/* Garb by default */ |
171 |
iterator= env->gc_ref; |
iterator= env->gc_ref; |
172 |
while(iterator!=NULL) { |
while(iterator!=NULL) { |
181 |
iterator= iterator->next; |
iterator= iterator->next; |
182 |
} |
} |
183 |
|
|
184 |
/* Mark values in stack */ |
/* Mark values on stack */ |
185 |
iterator= env->head; |
iterator= env->head; |
186 |
while(iterator!=NULL) { |
while(iterator!=NULL) { |
187 |
gc_mark(iterator->item); |
gc_mark(iterator->item); |
199 |
|
|
200 |
env->gc_count= 0; |
env->gc_count= 0; |
201 |
|
|
202 |
/* Sweep */ |
while(env->gc_ref!=NULL) { /* Sweep unused values */ |
|
while(env->gc_ref!=NULL) { |
|
203 |
|
|
204 |
if(env->gc_ref->item->gc_garb) { |
if(env->gc_ref->item->gc_garb) { |
205 |
|
|
206 |
/* Remove content */ |
switch(env->gc_ref->item->type) { /* Remove content */ |
|
switch(env->gc_ref->item->type) { |
|
207 |
case string: |
case string: |
208 |
free(env->gc_ref->item->content.ptr); |
free(env->gc_ref->item->content.ptr); |
209 |
break; |
break; |
221 |
titem= env->gc_ref->next; |
titem= env->gc_ref->next; |
222 |
free(env->gc_ref); /* Remove value */ |
free(env->gc_ref); /* Remove value */ |
223 |
env->gc_ref= titem; |
env->gc_ref= titem; |
224 |
} else { /* Save */ |
} else { /* Keep values */ |
225 |
titem= env->gc_ref->next; |
titem= env->gc_ref->next; |
226 |
env->gc_ref->next= new_head; |
env->gc_ref->next= new_head; |
227 |
new_head= env->gc_ref; |
new_head= env->gc_ref; |
234 |
env->gc_ref= new_head; |
env->gc_ref= new_head; |
235 |
} |
} |
236 |
|
|
237 |
|
/* Protect values from GC */ |
238 |
void protect(environment *env, value *val) |
void protect(environment *env, value *val) |
239 |
{ |
{ |
240 |
stackitem *new_item= malloc(sizeof(stackitem)); |
stackitem *new_item= malloc(sizeof(stackitem)); |
243 |
env->gc_protect= new_item; |
env->gc_protect= new_item; |
244 |
} |
} |
245 |
|
|
246 |
|
/* Unprotect values from GC */ |
247 |
void unprotect(environment *env) |
void unprotect(environment *env) |
248 |
{ |
{ |
249 |
stackitem *temp= env->gc_protect; |
stackitem *temp= env->gc_protect; |
260 |
env->head= new_item; |
env->head= new_item; |
261 |
} |
} |
262 |
|
|
263 |
/* Push an integer onto the stack. */ |
/* Push an integer onto the stack */ |
264 |
void push_int(environment *env, int in_val) |
void push_int(environment *env, int in_val) |
265 |
{ |
{ |
266 |
value *new_value= new_val(env); |
value *new_value= new_val(env); |
271 |
push_val(env, new_value); |
push_val(env, new_value); |
272 |
} |
} |
273 |
|
|
274 |
|
/* Push a floating point number onto the stack */ |
275 |
void push_float(environment *env, float in_val) |
void push_float(environment *env, float in_val) |
276 |
{ |
{ |
277 |
value *new_value= new_val(env); |
value *new_value= new_val(env); |
295 |
} |
} |
296 |
|
|
297 |
/* Mangle a symbol name to a valid C identifier name */ |
/* Mangle a symbol name to a valid C identifier name */ |
298 |
char *mangle_str(const char *old_string){ |
char *mangle_str(const char *old_string) |
299 |
|
{ |
300 |
char validchars[]= "0123456789abcdef"; |
char validchars[]= "0123456789abcdef"; |
301 |
char *new_string, *current; |
char *new_string, *current; |
302 |
|
|
314 |
return new_string; /* The caller must free() it */ |
return new_string; /* The caller must free() it */ |
315 |
} |
} |
316 |
|
|
317 |
extern void mangle(environment *env){ |
extern void mangle(environment *env) |
318 |
|
{ |
319 |
char *new_string; |
char *new_string; |
320 |
|
|
321 |
if((env->head)==NULL) { |
if((env->head)==NULL) { |
384 |
|
|
385 |
mangled= mangle_str(in_string); /* mangle the name */ |
mangled= mangle_str(in_string); /* mangle the name */ |
386 |
funcptr= dlsym(handle, mangled); /* and try to find it */ |
funcptr= dlsym(handle, mangled); /* and try to find it */ |
387 |
free(mangled); |
|
388 |
dlerr= dlerror(); |
dlerr= dlerror(); |
389 |
if(dlerr != NULL) { /* If no function was found */ |
if(dlerr != NULL) { /* If no function was found */ |
390 |
funcptr= dlsym(handle, in_string); /* Get function pointer */ |
funcptr= dlsym(handle, in_string); /* Get function pointer */ |
391 |
dlerr= dlerror(); |
dlerr= dlerror(); |
392 |
} |
} |
393 |
|
|
394 |
if(dlerr==NULL) { /* If a function was found */ |
if(dlerr==NULL) { /* If a function was found */ |
395 |
new_fvalue->type= func; /* The new value is a function pointer */ |
new_fvalue->type= func; /* The new value is a function pointer */ |
396 |
new_fvalue->content.ptr= funcptr; /* Store function pointer */ |
new_fvalue->content.ptr= funcptr; /* Store function pointer */ |
397 |
(*new_symbol)->val= new_fvalue; /* Bind the symbol to the new |
(*new_symbol)->val= new_fvalue; /* Bind the symbol to the new |
398 |
function value */ |
function value */ |
399 |
} |
} |
400 |
|
|
401 |
|
free(mangled); |
402 |
} |
} |
403 |
|
|
404 |
push_val(env, new_value); |
push_val(env, new_value); |
405 |
unprotect(env); unprotect(env); |
unprotect(env); unprotect(env); |
406 |
} |
} |
412 |
} |
} |
413 |
|
|
414 |
/* Gets the type of a value */ |
/* Gets the type of a value */ |
415 |
extern void type(environment *env){ |
extern void type(environment *env) |
416 |
|
{ |
417 |
int typenum; |
int typenum; |
418 |
|
|
419 |
if((env->head)==NULL) { |
if((env->head)==NULL) { |
481 |
} |
} |
482 |
} |
} |
483 |
|
|
484 |
extern void print_(environment *env) { |
extern void print_(environment *env) |
485 |
|
{ |
486 |
if(env->head==NULL) { |
if(env->head==NULL) { |
487 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
488 |
env->err=1; |
env->err=1; |
500 |
toss(env); |
toss(env); |
501 |
} |
} |
502 |
|
|
503 |
extern void princ_(environment *env) { |
extern void princ_(environment *env) |
504 |
|
{ |
505 |
if(env->head==NULL) { |
if(env->head==NULL) { |
506 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
507 |
env->err=1; |
env->err=1; |
535 |
printf("Stack Empty\n"); |
printf("Stack Empty\n"); |
536 |
return; |
return; |
537 |
} |
} |
538 |
|
|
539 |
print_st(env->head, 1); |
print_st(env->head, 1); |
540 |
} |
} |
541 |
|
|
613 |
|
|
614 |
eval_start: |
eval_start: |
615 |
|
|
616 |
|
gc_maybe(env); |
617 |
|
|
618 |
if(env->head==NULL) { |
if(env->head==NULL) { |
619 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
620 |
env->err=1; |
env->err=1; |
671 |
} |
} |
672 |
|
|
673 |
/* Reverse (flip) a list */ |
/* Reverse (flip) a list */ |
674 |
extern void rev(environment *env){ |
extern void rev(environment *env) |
675 |
|
{ |
676 |
stackitem *old_head, *new_head, *item; |
stackitem *old_head, *new_head, *item; |
677 |
|
|
678 |
if((env->head)==NULL) { |
if((env->head)==NULL) { |
858 |
/* Quit stack. */ |
/* Quit stack. */ |
859 |
extern void quit(environment *env) |
extern void quit(environment *env) |
860 |
{ |
{ |
861 |
long i; |
int i; |
862 |
|
|
863 |
clear(env); |
clear(env); |
864 |
|
|
871 |
} |
} |
872 |
|
|
873 |
env->gc_limit= 0; |
env->gc_limit= 0; |
874 |
gc_init(env); |
gc_maybe(env); |
875 |
|
|
876 |
if(env->free_string!=NULL) |
if(env->free_string!=NULL) |
877 |
free(env->free_string); |
free(env->free_string); |
904 |
} |
} |
905 |
|
|
906 |
/* Internal forget function */ |
/* Internal forget function */ |
907 |
void forget_sym(symbol **hash_entry) { |
void forget_sym(symbol **hash_entry) |
908 |
|
{ |
909 |
symbol *temp; |
symbol *temp; |
910 |
|
|
911 |
temp= *hash_entry; |
temp= *hash_entry; |
940 |
} |
} |
941 |
|
|
942 |
/* Returns the current error number to the stack */ |
/* Returns the current error number to the stack */ |
943 |
extern void errn(environment *env){ |
extern void errn(environment *env) |
944 |
|
{ |
945 |
push_int(env, env->err); |
push_int(env, env->err); |
946 |
} |
} |
947 |
|
|
1010 |
toss(&myenv); /* No error check in main */ |
toss(&myenv); /* No error check in main */ |
1011 |
eval(&myenv); |
eval(&myenv); |
1012 |
} |
} |
1013 |
gc_init(&myenv); |
gc_maybe(&myenv); |
1014 |
} |
} |
1015 |
quit(&myenv); |
quit(&myenv); |
1016 |
return EXIT_FAILURE; |
return EXIT_FAILURE; |
1017 |
} |
} |
1018 |
|
|
1019 |
/* "+" */ |
/* "+" */ |
1020 |
extern void sx_2b(environment *env) { |
extern void sx_2b(environment *env) |
1021 |
|
{ |
1022 |
int a, b; |
int a, b; |
1023 |
float fa, fb; |
float fa, fb; |
1024 |
size_t len; |
size_t len; |
1098 |
} |
} |
1099 |
|
|
1100 |
/* "-" */ |
/* "-" */ |
1101 |
extern void sx_2d(environment *env) { |
extern void sx_2d(environment *env) |
1102 |
|
{ |
1103 |
int a, b; |
int a, b; |
1104 |
float fa, fb; |
float fa, fb; |
1105 |
|
|
1158 |
} |
} |
1159 |
|
|
1160 |
/* ">" */ |
/* ">" */ |
1161 |
extern void sx_3e(environment *env) { |
extern void sx_3e(environment *env) |
1162 |
|
{ |
1163 |
int a, b; |
int a, b; |
1164 |
float fa, fb; |
float fa, fb; |
1165 |
|
|
1218 |
} |
} |
1219 |
|
|
1220 |
/* "<" */ |
/* "<" */ |
1221 |
extern void sx_3c(environment *env) { |
extern void sx_3c(environment *env) |
1222 |
|
{ |
1223 |
swap(env); if(env->err) return; |
swap(env); if(env->err) return; |
1224 |
sx_3e(env); |
sx_3e(env); |
1225 |
} |
} |
1226 |
|
|
1227 |
/* "<=" */ |
/* "<=" */ |
1228 |
extern void sx_3c3d(environment *env) { |
extern void sx_3c3d(environment *env) |
1229 |
|
{ |
1230 |
sx_3e(env); if(env->err) return; |
sx_3e(env); if(env->err) return; |
1231 |
not(env); |
not(env); |
1232 |
} |
} |
1233 |
|
|
1234 |
/* ">=" */ |
/* ">=" */ |
1235 |
extern void sx_3e3d(environment *env) { |
extern void sx_3e3d(environment *env) |
1236 |
|
{ |
1237 |
sx_3c(env); if(env->err) return; |
sx_3c(env); if(env->err) return; |
1238 |
not(env); |
not(env); |
1239 |
} |
} |
1240 |
|
|
1241 |
/* Return copy of a value */ |
/* Return copy of a value */ |
1242 |
value *copy_val(environment *env, value *old_value){ |
value *copy_val(environment *env, value *old_value) |
1243 |
|
{ |
1244 |
stackitem *old_item, *new_item, *prev_item; |
stackitem *old_item, *new_item, *prev_item; |
1245 |
value *new_value; |
value *new_value; |
1246 |
|
|
1287 |
} |
} |
1288 |
|
|
1289 |
/* "dup"; duplicates an item on the stack */ |
/* "dup"; duplicates an item on the stack */ |
1290 |
extern void sx_647570(environment *env) { |
extern void sx_647570(environment *env) |
1291 |
|
{ |
1292 |
if((env->head)==NULL) { |
if((env->head)==NULL) { |
1293 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1294 |
env->err= 1; |
env->err= 1; |
1298 |
} |
} |
1299 |
|
|
1300 |
/* "if", If-Then */ |
/* "if", If-Then */ |
1301 |
extern void sx_6966(environment *env) { |
extern void sx_6966(environment *env) |
1302 |
|
{ |
1303 |
int truth; |
int truth; |
1304 |
|
|
1305 |
if((env->head)==NULL || env->head->next==NULL) { |
if((env->head)==NULL || env->head->next==NULL) { |
1329 |
} |
} |
1330 |
|
|
1331 |
/* If-Then-Else */ |
/* If-Then-Else */ |
1332 |
extern void ifelse(environment *env) { |
extern void ifelse(environment *env) |
1333 |
|
{ |
1334 |
int truth; |
int truth; |
1335 |
|
|
1336 |
if((env->head)==NULL || env->head->next==NULL |
if((env->head)==NULL || env->head->next==NULL |
1365 |
} |
} |
1366 |
|
|
1367 |
/* "while" */ |
/* "while" */ |
1368 |
extern void sx_7768696c65(environment *env) { |
extern void sx_7768696c65(environment *env) |
1369 |
|
{ |
1370 |
int truth; |
int truth; |
1371 |
value *loop, *test; |
value *loop, *test; |
1372 |
|
|
1411 |
|
|
1412 |
|
|
1413 |
/* "for"; for-loop */ |
/* "for"; for-loop */ |
1414 |
extern void sx_666f72(environment *env) { |
extern void sx_666f72(environment *env) |
1415 |
|
{ |
1416 |
value *loop; |
value *loop; |
1417 |
int foo1, foo2; |
int foo1, foo2; |
1418 |
|
|
1459 |
} |
} |
1460 |
|
|
1461 |
/* Variant of for-loop */ |
/* Variant of for-loop */ |
1462 |
extern void foreach(environment *env) { |
extern void foreach(environment *env) |
1463 |
|
{ |
1464 |
value *loop, *foo; |
value *loop, *foo; |
1465 |
stackitem *iterator; |
stackitem *iterator; |
1466 |
|
|
1496 |
} |
} |
1497 |
|
|
1498 |
/* "to" */ |
/* "to" */ |
1499 |
extern void to(environment *env) { |
extern void to(environment *env) |
1500 |
int i, start, ending; |
{ |
1501 |
stackitem *temp_head; |
int ending, start, i; |
1502 |
value *temp_val; |
stackitem *iterator, *temp; |
1503 |
|
value *pack; |
1504 |
|
|
1505 |
if((env->head)==NULL || env->head->next==NULL) { |
if((env->head)==NULL || env->head->next==NULL) { |
1506 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
1507 |
env->err=1; |
env->err=1; |
1520 |
start= env->head->item->content.i; |
start= env->head->item->content.i; |
1521 |
toss(env); if(env->err) return; |
toss(env); if(env->err) return; |
1522 |
|
|
1523 |
temp_head= env->head; |
push_sym(env, "["); |
|
env->head= NULL; |
|
1524 |
|
|
1525 |
if(ending>=start) { |
if(ending>=start) { |
1526 |
for(i= ending; i>=start; i--) |
for(i= ending; i>=start; i--) |
1530 |
push_int(env, i); |
push_int(env, i); |
1531 |
} |
} |
1532 |
|
|
1533 |
temp_val= new_val(env); |
iterator= env->head; |
1534 |
protect(env, temp_val); |
pack= new_val(env); |
1535 |
|
protect(env, pack); |
1536 |
|
|
1537 |
|
if(iterator==NULL |
1538 |
|
|| (iterator->item->type==symb |
1539 |
|
&& ((symbol*)(iterator->item->content.ptr))->id[0]=='[')) { |
1540 |
|
temp= NULL; |
1541 |
|
toss(env); |
1542 |
|
} else { |
1543 |
|
/* Search for first delimiter */ |
1544 |
|
while(iterator->next!=NULL |
1545 |
|
&& (iterator->next->item->type!=symb |
1546 |
|
|| ((symbol*)(iterator->next->item->content.ptr))->id[0]!='[')) |
1547 |
|
iterator= iterator->next; |
1548 |
|
|
1549 |
|
/* Extract list */ |
1550 |
|
temp= env->head; |
1551 |
|
env->head= iterator->next; |
1552 |
|
iterator->next= NULL; |
1553 |
|
|
1554 |
|
pack->type= list; |
1555 |
|
pack->content.ptr= temp; |
1556 |
|
|
1557 |
|
if(env->head!=NULL) |
1558 |
|
toss(env); |
1559 |
|
} |
1560 |
|
|
1561 |
|
/* Push list */ |
1562 |
|
|
1563 |
temp_val->content.ptr= env->head; |
push_val(env, pack); |
|
temp_val->type= list; |
|
|
env->head= temp_head; |
|
|
push_val(env, temp_val); |
|
1564 |
|
|
1565 |
unprotect(env); |
unprotect(env); |
1566 |
} |
} |
1567 |
|
|
1568 |
/* Read a string */ |
/* Read a string */ |
1569 |
extern void readline(environment *env) { |
extern void readline(environment *env) |
1570 |
|
{ |
1571 |
char in_string[101]; |
char in_string[101]; |
1572 |
|
|
1573 |
if(fgets(in_string, 100, env->inputstream)==NULL) |
if(fgets(in_string, 100, env->inputstream)==NULL) |
1577 |
} |
} |
1578 |
|
|
1579 |
/* "read"; Read a value and place on stack */ |
/* "read"; Read a value and place on stack */ |
1580 |
extern void sx_72656164(environment *env) { |
extern void sx_72656164(environment *env) |
1581 |
|
{ |
1582 |
const char symbform[]= "%[a-zA-Z0-9!$%*+./:<=>?@^_~-]%n"; |
const char symbform[]= "%[a-zA-Z0-9!$%*+./:<=>?@^_~-]%n"; |
1583 |
const char strform[]= "\"%[^\"]\"%n"; |
const char strform[]= "\"%[^\"]\"%n"; |
1584 |
const char intform[]= "%i%n"; |
const char intform[]= "%i%n"; |
1657 |
return sx_72656164(env); |
return sx_72656164(env); |
1658 |
} |
} |
1659 |
|
|
1660 |
extern void beep(environment *env) { |
extern void beep(environment *env) |
1661 |
|
{ |
1662 |
int freq, dur, period, ticks; |
int freq, dur, period, ticks; |
1663 |
|
|
1664 |
if((env->head)==NULL || env->head->next==NULL) { |
if((env->head)==NULL || env->head->next==NULL) { |
1698 |
default: |
default: |
1699 |
abort(); |
abort(); |
1700 |
} |
} |
1701 |
}; |
} |
1702 |
|
|
1703 |
/* "wait" */ |
/* "wait" */ |
1704 |
extern void sx_77616974(environment *env) { |
extern void sx_77616974(environment *env) |
1705 |
|
{ |
1706 |
int dur; |
int dur; |
1707 |
|
|
1708 |
if((env->head)==NULL) { |
if((env->head)==NULL) { |
1721 |
toss(env); |
toss(env); |
1722 |
|
|
1723 |
usleep(dur); |
usleep(dur); |
1724 |
}; |
} |
1725 |
|
|
1726 |
extern void copying(environment *env){ |
extern void copying(environment *env) |
1727 |
|
{ |
1728 |
printf("GNU GENERAL PUBLIC LICENSE\n\ |
printf("GNU GENERAL PUBLIC LICENSE\n\ |
1729 |
Version 2, June 1991\n\ |
Version 2, June 1991\n\ |
1730 |
\n\ |
\n\ |
1983 |
of promoting the sharing and reuse of software generally.\n"); |
of promoting the sharing and reuse of software generally.\n"); |
1984 |
} |
} |
1985 |
|
|
1986 |
extern void warranty(environment *env){ |
extern void warranty(environment *env) |
1987 |
|
{ |
1988 |
printf(" NO WARRANTY\n\ |
printf(" NO WARRANTY\n\ |
1989 |
\n\ |
\n\ |
1990 |
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\n\ |
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\n\ |
2135 |
|
|
2136 |
if((env->head)==NULL || env->head->next==NULL) { |
if((env->head)==NULL || env->head->next==NULL) { |
2137 |
printerr("Too Few Arguments"); |
printerr("Too Few Arguments"); |
2138 |
env->err=1; |
env->err= 1; |
2139 |
return; |
return; |
2140 |
} |
} |
2141 |
|
|
2153 |
printerr("Bad Argument Type"); |
printerr("Bad Argument Type"); |
2154 |
env->err=2; |
env->err=2; |
2155 |
} |
} |
2156 |
|
|
2157 |
|
/* "div" */ |
2158 |
|
extern void sx_646976(environment *env) |
2159 |
|
{ |
2160 |
|
int a, b; |
2161 |
|
|
2162 |
|
if((env->head)==NULL || env->head->next==NULL) { |
2163 |
|
printerr("Too Few Arguments"); |
2164 |
|
env->err= 1; |
2165 |
|
return; |
2166 |
|
} |
2167 |
|
|
2168 |
|
if(env->head->item->type==integer |
2169 |
|
&& env->head->next->item->type==integer) { |
2170 |
|
a= env->head->item->content.i; |
2171 |
|
toss(env); if(env->err) return; |
2172 |
|
b= env->head->item->content.i; |
2173 |
|
toss(env); if(env->err) return; |
2174 |
|
push_int(env, (int)b/a); |
2175 |
|
|
2176 |
|
return; |
2177 |
|
} |
2178 |
|
|
2179 |
|
printerr("Bad Argument Type"); |
2180 |
|
env->err= 2; |
2181 |
|
} |