X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fdictionary.c;h=94a0292e17b54d878b69e6d37539118cff47b6e2;hb=a9acce47d67e0ab35ce1690e4f1b1ac0121c2d78;hp=0f3e25e3285d0ac76fe6814c1a29436ed5ac196c;hpb=b31bac73c9affb7843d332807ffe5cef9c5e7cea;p=pspp-builds.git diff --git a/src/data/dictionary.c b/src/data/dictionary.c index 0f3e25e3..94a0292e 100644 --- a/src/data/dictionary.c +++ b/src/data/dictionary.c @@ -53,7 +53,7 @@ struct dictionary size_t split_cnt; /* SPLIT FILE count. */ struct variable *weight; /* WEIGHT variable. */ struct variable *filter; /* FILTER variable. */ - size_t case_limit; /* Current case limit (N command). */ + casenumber case_limit; /* Current case limit (N command). */ char *label; /* File label. */ struct string documents; /* Documents, as a string. */ struct vector **vector; /* Vectors of variables. */ @@ -257,21 +257,26 @@ dict_get_var (const struct dictionary *d, size_t idx) return d->var[idx]; } -inline void +/* Sets *VARS to an array of pointers to variables in D and *CNT + to the number of variables in *D. All variables are returned + except for those, if any, in the classes indicated by EXCLUDE. + (There is no point in putting DC_SYSTEM in EXCLUDE as + dictionaries never include system variables.) */ +void dict_get_vars (const struct dictionary *d, const struct variable ***vars, - size_t *cnt, unsigned exclude_classes) + size_t *cnt, enum dict_class exclude) { - dict_get_vars_mutable (d, (struct variable ***) vars, cnt, exclude_classes); + dict_get_vars_mutable (d, (struct variable ***) vars, cnt, exclude); } /* Sets *VARS to an array of pointers to variables in D and *CNT to the number of variables in *D. All variables are returned - if EXCLUDE_CLASSES is 0, or it may contain one or more of (1u - << DC_ORDINARY), (1u << DC_SYSTEM), or (1u << DC_SCRATCH) to - exclude the corresponding type of variable. */ + except for those, if any, in the classes indicated by EXCLUDE. + (There is no point in putting DC_SYSTEM in EXCLUDE as + dictionaries never include system variables.) */ void dict_get_vars_mutable (const struct dictionary *d, struct variable ***vars, - size_t *cnt, unsigned exclude_classes) + size_t *cnt, enum dict_class exclude) { size_t count; size_t i; @@ -279,15 +284,13 @@ dict_get_vars_mutable (const struct dictionary *d, struct variable ***vars, assert (d != NULL); assert (vars != NULL); assert (cnt != NULL); - assert ((exclude_classes & ~((1u << DC_ORDINARY) - | (1u << DC_SYSTEM) - | (1u << DC_SCRATCH))) == 0); + assert (exclude == (exclude & DC_ALL)); count = 0; for (i = 0; i < d->var_cnt; i++) { - enum dict_class class = dict_class_from_id (var_get_name (d->var[i])); - if (!(exclude_classes & (1u << class))) + enum dict_class class = var_get_dict_class (d->var[i]); + if (!(class & exclude)) count++; } @@ -295,8 +298,8 @@ dict_get_vars_mutable (const struct dictionary *d, struct variable ***vars, *cnt = 0; for (i = 0; i < d->var_cnt; i++) { - enum dict_class class = dict_class_from_id (var_get_name (d->var[i])); - if (!(exclude_classes & (1u << class))) + enum dict_class class = var_get_dict_class (d->var[i]); + if (!(class & exclude)) (*vars)[(*cnt)++] = d->var[i]; } assert (*cnt == count); @@ -480,7 +483,7 @@ reindex_vars (struct dictionary *d, size_t from, size_t to) active on the dictionary's dataset, because those transformations might reference the deleted variable. The safest time to delete a variable is just after a procedure has - been executed, as done by MODIFY VARS. + been executed, as done by DELETE VARIABLES. Pointers to V within D are not a problem, because dict_delete_var() knows to remove V from split variables, @@ -567,7 +570,7 @@ dict_delete_scratch_vars (struct dictionary *d) assert (d != NULL); for (i = 0; i < d->var_cnt; ) - if (dict_class_from_id (var_get_name (d->var[i])) == DC_SCRATCH) + if (var_get_dict_class (d->var[i]) == DC_SCRATCH) dict_delete_var (d, d->var[i]); else i++; @@ -734,11 +737,12 @@ dict_get_weight (const struct dictionary *d) return d->weight; } -/* Returns the value of D's weighting variable in case C, except that a - negative weight is returned as 0. Returns 1 if the dictionary is - unweighted. Will warn about missing, negative, or zero values if - warn_on_invalid is true. The function will set warn_on_invalid to false - if an invalid weight is found. */ +/* Returns the value of D's weighting variable in case C, except + that a negative weight is returned as 0. Returns 1 if the + dictionary is unweighted. Will warn about missing, negative, + or zero values if *WARN_ON_INVALID is true. The function will + set *WARN_ON_INVALID to false if an invalid weight is + found. */ double dict_get_case_weight (const struct dictionary *d, const struct ccase *c, bool *warn_on_invalid) @@ -798,6 +802,7 @@ dict_set_filter (struct dictionary *d, struct variable *v) { assert (d != NULL); assert (v == NULL || dict_contains_var (d, v)); + assert (v == NULL || var_is_numeric (v)); d->filter = v; @@ -809,7 +814,7 @@ dict_set_filter (struct dictionary *d, struct variable *v) /* Returns the case limit for dictionary D, or zero if the number of cases is unlimited. */ -size_t +casenumber dict_get_case_limit (const struct dictionary *d) { assert (d != NULL); @@ -820,7 +825,7 @@ dict_get_case_limit (const struct dictionary *d) /* Sets CASE_LIMIT as the case limit for dictionary D. Use 0 for CASE_LIMIT to indicate no limit. */ void -dict_set_case_limit (struct dictionary *d, size_t case_limit) +dict_set_case_limit (struct dictionary *d, casenumber case_limit) { assert (d != NULL); @@ -913,7 +918,7 @@ dict_count_values (const struct dictionary *d, unsigned int exclude_classes) cnt = 0; for (i = 0; i < d->var_cnt; i++) { - enum dict_class class = dict_class_from_id (var_get_name (d->var[i])); + enum dict_class class = var_get_dict_class (d->var[i]); if (!(exclude_classes & (1u << class))) cnt += var_get_value_cnt (d->var[i]); } @@ -941,20 +946,25 @@ dict_get_split_cnt (const struct dictionary *d) return d->split_cnt; } -/* Removes variable V from the set of split variables in dictionary D */ +/* Removes variable V, which must be in D, from D's set of split + variables. */ void -dict_unset_split_var (struct dictionary *d, - struct variable *v) +dict_unset_split_var (struct dictionary *d, struct variable *v) { - const int count = d->split_cnt; - d->split_cnt = remove_equal (d->split, d->split_cnt, sizeof *d->split, - &v, compare_var_ptrs, NULL); + int orig_count; - if ( count == d->split_cnt) - return; + assert (dict_contains_var (d, v)); - if ( d->callbacks && d->callbacks->split_changed ) - d->callbacks->split_changed (d, d->cb_data); + orig_count = d->split_cnt; + d->split_cnt = remove_equal (d->split, d->split_cnt, sizeof *d->split, + &v, compare_var_ptrs, NULL); + if (orig_count != d->split_cnt) + { + /* We changed the set of split variables so invoke the + callback. */ + if (d->callbacks && d->callbacks->split_changed) + d->callbacks->split_changed (d, d->cb_data); + } } /* Sets CNT split vars SPLIT in dictionary D. */ @@ -999,16 +1009,7 @@ dict_set_label (struct dictionary *d, const char *label) assert (d != NULL); free (d->label); - if (label == NULL) - d->label = NULL; - else if (strlen (label) < 60) - d->label = xstrdup (label); - else - { - d->label = xmalloc (61); - memcpy (d->label, label, 60); - d->label[60] = '\0'; - } + d->label = label != NULL ? xstrndup (label, 60) : NULL; } /* Returns the documents for D, or a null pointer if D has no