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-rw-r--r--qobject/qbool.c8
-rw-r--r--qobject/qdict.c29
-rw-r--r--qobject/qlist.c32
-rw-r--r--qobject/qnull.c9
-rw-r--r--qobject/qnum.c54
-rw-r--r--qobject/qobject.c29
-rw-r--r--qobject/qstring.c9
7 files changed, 170 insertions, 0 deletions
diff --git a/qobject/qbool.c b/qobject/qbool.c
index 0606bbd2a3..ac825fc5a2 100644
--- a/qobject/qbool.c
+++ b/qobject/qbool.c
@@ -52,6 +52,14 @@ QBool *qobject_to_qbool(const QObject *obj)
}
/**
+ * 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
*/
diff --git a/qobject/qdict.c b/qobject/qdict.c
index 576018e531..e8f15f1132 100644
--- a/qobject/qdict.c
+++ b/qobject/qdict.c
@@ -403,6 +403,35 @@ void qdict_del(QDict *qdict, const char *key)
}
/**
+ * 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
*/
void qdict_destroy_obj(QObject *obj)
diff --git a/qobject/qlist.c b/qobject/qlist.c
index 86b60cb88c..3ef57d31d1 100644
--- a/qobject/qlist.c
+++ b/qobject/qlist.c
@@ -140,6 +140,38 @@ QList *qobject_to_qlist(const QObject *obj)
}
/**
+ * 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
*/
void qlist_destroy_obj(QObject *obj)
diff --git a/qobject/qnull.c b/qobject/qnull.c
index bc9fd31626..f6f55f11ea 100644
--- a/qobject/qnull.c
+++ b/qobject/qnull.c
@@ -20,3 +20,12 @@ QNull qnull_ = {
.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;
+}
diff --git a/qobject/qnum.c b/qobject/qnum.c
index 476e81c93b..410686a611 100644
--- a/qobject/qnum.c
+++ b/qobject/qnum.c
@@ -213,6 +213,60 @@ QNum *qobject_to_qnum(const QObject *obj)
}
/**
+ * 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
*/
diff --git a/qobject/qobject.c b/qobject/qobject.c
index b0cafb66f1..b2a536041d 100644
--- a/qobject/qobject.c
+++ b/qobject/qobject.c
@@ -27,3 +27,32 @@ void qobject_destroy(QObject *obj)
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);
+}
diff --git a/qobject/qstring.c b/qobject/qstring.c
index 5da7b5f37c..74182a1c02 100644
--- a/qobject/qstring.c
+++ b/qobject/qstring.c
@@ -129,6 +129,15 @@ const char *qstring_get_str(const QString *qstring)
}
/**
+ * 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
*/
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-14 19:24:48 +0000