Patchwork [v4,2/8] QDict: New qdict_get_double()

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Submitter Markus Armbruster
Date Jan. 27, 2010, 4:16 p.m.
Message ID <m3wrz3zfo9.fsf_-_@blackfin.pond.sub.org>
Download mbox | patch
Permalink /patch/43822/
State New
Headers show

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Markus Armbruster - Jan. 27, 2010, 4:16 p.m.
Helper function just like qdict_get_int(), just for QFloat/double.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 Makefile |    2 +-
 qdict.c  |   24 ++++++++++++++++++++++++
 qdict.h  |    1 +
 3 files changed, 26 insertions(+), 1 deletions(-)

Patch

diff --git a/Makefile b/Makefile
index 60d5c66..3f02c66 100644
--- a/Makefile
+++ b/Makefile
@@ -147,7 +147,7 @@  qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
 
 check-qint: check-qint.o qint.o qemu-malloc.o
 check-qstring: check-qstring.o qstring.o qemu-malloc.o
-check-qdict: check-qdict.o qdict.o qint.o qstring.o qbool.o qemu-malloc.o qlist.o
+check-qdict: check-qdict.o qdict.o qfloat.o qint.o qstring.o qbool.o qemu-malloc.o qlist.o
 check-qlist: check-qlist.o qlist.o qint.o qemu-malloc.o
 check-qfloat: check-qfloat.o qfloat.o qemu-malloc.o
 check-qjson: check-qjson.o qfloat.o qint.o qdict.o qstring.o qlist.o qbool.o qjson.o json-streamer.o json-lexer.o json-parser.o qemu-malloc.o
diff --git a/qdict.c b/qdict.c
index ba8eef0..32119cf 100644
--- a/qdict.c
+++ b/qdict.c
@@ -11,6 +11,7 @@ 
  */
 
 #include "qint.h"
+#include "qfloat.h"
 #include "qdict.h"
 #include "qbool.h"
 #include "qstring.h"
@@ -175,6 +176,29 @@  static QObject *qdict_get_obj(const QDict *qdict, const char *key,
 }
 
 /**
+ * qdict_get_double(): Get an number mapped by 'key'
+ *
+ * This function assumes that 'key' exists and it stores a
+ * QFloat or QInt object.
+ *
+ * Return number mapped by 'key'.
+ */
+double qdict_get_double(const QDict *qdict, const char *key)
+{
+    QObject *obj = qdict_get(qdict, key);
+
+    assert(obj);
+    switch (qobject_type(obj)) {
+    case QTYPE_QFLOAT:
+        return qfloat_get_double(qobject_to_qfloat(obj));
+    case QTYPE_QINT:
+        return qint_get_int(qobject_to_qint(obj));
+    default:
+        assert(0);
+    }
+}
+
+/**
  * qdict_get_int(): Get an integer mapped by 'key'
  *
  * This function assumes that 'key' exists and it stores a
diff --git a/qdict.h b/qdict.h
index 5fef1ea..5649ccf 100644
--- a/qdict.h
+++ b/qdict.h
@@ -37,6 +37,7 @@  void qdict_iter(const QDict *qdict,
         qdict_put_obj(qdict, key, QOBJECT(obj))
 
 /* High level helpers */
+double qdict_get_double(const QDict *qdict, const char *key);
 int64_t qdict_get_int(const QDict *qdict, const char *key);
 int qdict_get_bool(const QDict *qdict, const char *key);
 QList *qdict_get_qlist(const QDict *qdict, const char *key);