| 1 | /* classes: h_files */ |
| 2 | |
| 3 | #ifndef SCM_WEAK_SET_H |
| 4 | #define SCM_WEAK_SET_H |
| 5 | |
| 6 | /* Copyright (C) 2011 Free Software Foundation, Inc. |
| 7 | * |
| 8 | * This library is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public License |
| 10 | * as published by the Free Software Foundation; either version 3 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with this library; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 21 | * 02110-1301 USA |
| 22 | */ |
| 23 | |
| 24 | \f |
| 25 | |
| 26 | #include "libguile/__scm.h" |
| 27 | |
| 28 | \f |
| 29 | |
| 30 | /* The weak set API is currently only used internally. We could make it |
| 31 | public later, after some API review. */ |
| 32 | |
| 33 | /* Function that returns nonzero if the given object is the one we are |
| 34 | looking for. */ |
| 35 | typedef int (*scm_t_set_predicate_fn) (SCM obj, void *closure); |
| 36 | |
| 37 | /* Function to fold over the elements of a set. */ |
| 38 | typedef SCM (*scm_t_set_fold_fn) (void *closure, SCM key, SCM result); |
| 39 | |
| 40 | SCM_INTERNAL SCM scm_c_make_weak_set (unsigned long k); |
| 41 | SCM_INTERNAL SCM scm_weak_set_p (SCM h); |
| 42 | SCM_INTERNAL SCM scm_c_weak_set_lookup (SCM set, unsigned long raw_hash, |
| 43 | scm_t_set_predicate_fn pred, |
| 44 | void *closure, SCM dflt); |
| 45 | SCM_INTERNAL SCM scm_c_weak_set_add_x (SCM set, unsigned long raw_hash, |
| 46 | scm_t_set_predicate_fn pred, |
| 47 | void *closure, SCM obj); |
| 48 | SCM_INTERNAL void scm_c_weak_set_remove_x (SCM set, unsigned long raw_hash, |
| 49 | scm_t_set_predicate_fn pred, |
| 50 | void *closure); |
| 51 | SCM_INTERNAL SCM scm_weak_set_add_x (SCM set, SCM obj); |
| 52 | SCM_INTERNAL SCM scm_weak_set_remove_x (SCM set, SCM obj); |
| 53 | SCM_INTERNAL SCM scm_weak_set_clear_x (SCM set); |
| 54 | SCM_INTERNAL SCM scm_c_weak_set_fold (scm_t_set_fold_fn proc, void *closure, |
| 55 | SCM init, SCM set); |
| 56 | SCM_INTERNAL SCM scm_weak_set_fold (SCM proc, SCM init, SCM set); |
| 57 | SCM_INTERNAL SCM scm_weak_set_for_each (SCM proc, SCM set); |
| 58 | SCM_INTERNAL SCM scm_weak_set_map_to_list (SCM proc, SCM set); |
| 59 | |
| 60 | SCM_INTERNAL void scm_i_weak_set_print (SCM exp, SCM port, scm_print_state *pstate); |
| 61 | SCM_INTERNAL void scm_init_weak_set (void); |
| 62 | |
| 63 | #endif /* SCM_WEAK_SET_H */ |
| 64 | |
| 65 | /* |
| 66 | Local Variables: |
| 67 | c-file-style: "gnu" |
| 68 | End: |
| 69 | */ |