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gyehoek-hs/play/hash.c
T
2026-05-19 16:16:03 -06:00

38 lines
1.4 KiB
C

#include <stdio.h>
#include "../runtime/gyehoek.h"
#include "../runtime/weak-set.h"
static int
symbol_lookup_predicate_fn (SCM sym, void *closure) {
SCM other = SCM_PACK_POINTER (closure);
return 1;
}
int main () {
/* const char s[] = "wormy"; */
/* const SCM str = scm_from_utf8_string (s, sizeof(s)); */
/* const unsigned long hash = scm_c_hash (str); */
/* printf ("%ld\n", hash); */
SCM set = scm_c_make_weak_set (31);
SCM str = scm_from_cstring ("my-symbol");
SCM sym = scm_make_symbol (str, scm_c_hash (str));
scm_c_weak_set_insert (set, scm_c_hash (str),
SCM_PACK (SCM_MAKE_SMALL_INT (123)),
symbol_lookup_predicate_fn,
SCM_UNPACK_POINTER (sym));
printf ("%ld\n", weak_set_count (set));
scm_c_weak_set_insert (set, scm_c_hash (str),
SCM_PACK (SCM_MAKE_SMALL_INT (123)),
symbol_lookup_predicate_fn,
SCM_UNPACK_POINTER (sym));
printf ("%ld\n", weak_set_count (set));
SCM str2 = scm_from_cstring ("my-symbol2");
SCM sym2 = scm_make_symbol (str2, scm_c_hash (str2));
scm_c_weak_set_insert (set, scm_c_hash (str2),
SCM_PACK (SCM_MAKE_SMALL_INT (456)),
symbol_lookup_predicate_fn,
SCM_UNPACK_POINTER (sym2));
printf ("%ld\n", weak_set_count (set));
}