QBool *qbool_from_bool(bool value);
bool qbool_get_bool(const QBool *qb);
QBool *qobject_to_qbool(const QObject *obj);
+bool qbool_is_equal(const QObject *x, const QObject *y);
void qbool_destroy_obj(QObject *obj);
#endif /* QBOOL_H */
int qdict_haskey(const QDict *qdict, const char *key);
QObject *qdict_get(const QDict *qdict, const char *key);
QDict *qobject_to_qdict(const QObject *obj);
+bool qdict_is_equal(const QObject *x, const QObject *y);
void qdict_iter(const QDict *qdict,
void (*iter)(const char *key, QObject *obj, void *opaque),
void *opaque);
int qlist_empty(const QList *qlist);
size_t qlist_size(const QList *qlist);
QList *qobject_to_qlist(const QObject *obj);
+bool qlist_is_equal(const QObject *x, const QObject *y);
void qlist_destroy_obj(QObject *obj);
static inline const QListEntry *qlist_first(const QList *qlist)
return &qnull_;
}
+bool qnull_is_equal(const QObject *x, const QObject *y);
+
#endif /* QNULL_H */
char *qnum_to_string(QNum *qn);
QNum *qobject_to_qnum(const QObject *obj);
+bool qnum_is_equal(const QObject *x, const QObject *y);
void qnum_destroy_obj(QObject *obj);
#endif /* QNUM_H */
obj->refcnt++;
}
+/**
+ * qobject_is_equal(): Return whether the two objects are equal.
+ *
+ * Any of the pointers may be NULL; return true if both are. Always
+ * return false if only one is (therefore a QNull object is not
+ * considered equal to a NULL pointer).
+ */
+bool qobject_is_equal(const QObject *x, const QObject *y);
+
/**
* qobject_destroy(): Free resources used by the object
*/
void qstring_append(QString *qstring, const char *str);
void qstring_append_chr(QString *qstring, int c);
QString *qobject_to_qstring(const QObject *obj);
+bool qstring_is_equal(const QObject *x, const QObject *y);
void qstring_destroy_obj(QObject *obj);
#endif /* QSTRING_H */
return container_of(obj, QBool, base);
}
+/**
+ * qbool_is_equal(): Test whether the two QBools are equal
+ */
+bool qbool_is_equal(const QObject *x, const QObject *y)
+{
+ return qobject_to_qbool(x)->value == qobject_to_qbool(y)->value;
+}
+
/**
* qbool_destroy_obj(): Free all memory allocated by a
* QBool object
}
}
+/**
+ * qdict_is_equal(): Test whether the two QDicts are equal
+ *
+ * Here, equality means whether they contain the same keys and whether
+ * the respective values are in turn equal (i.e. invoking
+ * qobject_is_equal() on them yields true).
+ */
+bool qdict_is_equal(const QObject *x, const QObject *y)
+{
+ const QDict *dict_x = qobject_to_qdict(x);
+ const QDict *dict_y = qobject_to_qdict(y);
+ const QDictEntry *e;
+
+ if (qdict_size(dict_x) != qdict_size(dict_y)) {
+ return false;
+ }
+
+ for (e = qdict_first(dict_x); e; e = qdict_next(dict_x, e)) {
+ const QObject *obj_x = qdict_entry_value(e);
+ const QObject *obj_y = qdict_get(dict_y, qdict_entry_key(e));
+
+ if (!qobject_is_equal(obj_x, obj_y)) {
+ return false;
+ }
+ }
+
+ return true;
+}
+
/**
* qdict_destroy_obj(): Free all the memory allocated by a QDict
*/
return container_of(obj, QList, base);
}
+/**
+ * qlist_is_equal(): Test whether the two QLists are equal
+ *
+ * In order to be considered equal, the respective two objects at each
+ * index of the two lists have to compare equal (regarding
+ * qobject_is_equal()), and both lists have to have the same number of
+ * elements.
+ * That means both lists have to contain equal objects in equal order.
+ */
+bool qlist_is_equal(const QObject *x, const QObject *y)
+{
+ const QList *list_x = qobject_to_qlist(x);
+ const QList *list_y = qobject_to_qlist(y);
+ const QListEntry *entry_x, *entry_y;
+
+ entry_x = qlist_first(list_x);
+ entry_y = qlist_first(list_y);
+
+ while (entry_x && entry_y) {
+ if (!qobject_is_equal(qlist_entry_obj(entry_x),
+ qlist_entry_obj(entry_y)))
+ {
+ return false;
+ }
+
+ entry_x = qlist_next(entry_x);
+ entry_y = qlist_next(entry_y);
+ }
+
+ return !entry_x && !entry_y;
+}
+
/**
* qlist_destroy_obj(): Free all the memory allocated by a QList
*/
.refcnt = 1,
},
};
+
+/**
+ * qnull_is_equal(): Always return true because any two QNull objects
+ * are equal.
+ */
+bool qnull_is_equal(const QObject *x, const QObject *y)
+{
+ return true;
+}
return container_of(obj, QNum, base);
}
+/**
+ * qnum_is_equal(): Test whether the two QNums are equal
+ *
+ * Negative integers are never considered equal to unsigned integers,
+ * but positive integers in the range [0, INT64_MAX] are considered
+ * equal independently of whether the QNum's kind is i64 or u64.
+ *
+ * Doubles are never considered equal to integers.
+ */
+bool qnum_is_equal(const QObject *x, const QObject *y)
+{
+ QNum *num_x = qobject_to_qnum(x);
+ QNum *num_y = qobject_to_qnum(y);
+
+ switch (num_x->kind) {
+ case QNUM_I64:
+ switch (num_y->kind) {
+ case QNUM_I64:
+ /* Comparison in native int64_t type */
+ return num_x->u.i64 == num_y->u.i64;
+ case QNUM_U64:
+ /* Implicit conversion of x to uin64_t, so we have to
+ * check its sign before */
+ return num_x->u.i64 >= 0 && num_x->u.i64 == num_y->u.u64;
+ case QNUM_DOUBLE:
+ return false;
+ }
+ abort();
+ case QNUM_U64:
+ switch (num_y->kind) {
+ case QNUM_I64:
+ return qnum_is_equal(y, x);
+ case QNUM_U64:
+ /* Comparison in native uint64_t type */
+ return num_x->u.u64 == num_y->u.u64;
+ case QNUM_DOUBLE:
+ return false;
+ }
+ abort();
+ case QNUM_DOUBLE:
+ switch (num_y->kind) {
+ case QNUM_I64:
+ case QNUM_U64:
+ return false;
+ case QNUM_DOUBLE:
+ /* Comparison in native double type */
+ return num_x->u.dbl == num_y->u.dbl;
+ }
+ abort();
+ }
+
+ abort();
+}
+
/**
* qnum_destroy_obj(): Free all memory allocated by a
* QNum object
assert(QTYPE_QNULL < obj->type && obj->type < QTYPE__MAX);
qdestroy[obj->type](obj);
}
+
+
+static bool (*qis_equal[QTYPE__MAX])(const QObject *, const QObject *) = {
+ [QTYPE_NONE] = NULL, /* No such object exists */
+ [QTYPE_QNULL] = qnull_is_equal,
+ [QTYPE_QNUM] = qnum_is_equal,
+ [QTYPE_QSTRING] = qstring_is_equal,
+ [QTYPE_QDICT] = qdict_is_equal,
+ [QTYPE_QLIST] = qlist_is_equal,
+ [QTYPE_QBOOL] = qbool_is_equal,
+};
+
+bool qobject_is_equal(const QObject *x, const QObject *y)
+{
+ /* We cannot test x == y because an object does not need to be
+ * equal to itself (e.g. NaN floats are not). */
+
+ if (!x && !y) {
+ return true;
+ }
+
+ if (!x || !y || x->type != y->type) {
+ return false;
+ }
+
+ assert(QTYPE_NONE < x->type && x->type < QTYPE__MAX);
+
+ return qis_equal[x->type](x, y);
+}
return qstring->string;
}
+/**
+ * qstring_is_equal(): Test whether the two QStrings are equal
+ */
+bool qstring_is_equal(const QObject *x, const QObject *y)
+{
+ return !strcmp(qobject_to_qstring(x)->string,
+ qobject_to_qstring(y)->string);
+}
+
/**
* qstring_destroy_obj(): Free all memory allocated by a QString
* object
projects / mirror_qemu.git / commitdiff