1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2004, 2007 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
27 /* A count of cases or the index of a case within a collection of
29 #define CASENUMBER_MAX LONG_MAX
30 typedef long int casenumber;
32 /* Opaque structure that represents a case. Use accessor
33 functions instead of accessing any members directly. Use
34 case_move() or case_clone() instead of copying. */
37 struct case_data *case_data; /* Actual data. */
40 void case_nullify (struct ccase *);
41 bool case_is_null (const struct ccase *);
43 void case_create (struct ccase *, size_t value_cnt);
44 void case_clone (struct ccase *, const struct ccase *);
45 void case_move (struct ccase *, struct ccase *);
46 void case_destroy (struct ccase *);
48 size_t case_get_value_cnt (const struct ccase *);
50 void case_resize (struct ccase *, size_t new_cnt);
51 void case_swap (struct ccase *, struct ccase *);
53 bool case_try_create (struct ccase *, size_t value_cnt);
54 bool case_try_clone (struct ccase *, const struct ccase *);
56 void case_copy (struct ccase *dst, size_t dst_idx,
57 const struct ccase *src, size_t src_idx,
60 void case_copy_out (const struct ccase *,
61 size_t start_idx, union value *, size_t value_cnt);
62 void case_copy_in (struct ccase *,
63 size_t start_idx, const union value *, size_t value_cnt);
65 const union value *case_data (const struct ccase *, const struct variable *);
66 double case_num (const struct ccase *, const struct variable *);
67 const char *case_str (const struct ccase *, const struct variable *);
68 union value *case_data_rw (struct ccase *, const struct variable *);
70 const union value *case_data_idx (const struct ccase *, size_t idx);
71 double case_num_idx (const struct ccase *, size_t idx);
72 const char *case_str_idx (const struct ccase *, size_t idx);
73 union value *case_data_rw_idx (struct ccase *, size_t idx);
75 int case_compare (const struct ccase *, const struct ccase *,
76 const struct variable *const *, size_t var_cnt);
77 int case_compare_2dict (const struct ccase *, const struct ccase *,
78 const struct variable *const *,
79 const struct variable *const *,
82 const union value *case_data_all (const struct ccase *);
83 union value *case_data_all_rw (struct ccase *);
85 #endif /* data/case.h */