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caps: Use G_GNUC_WARN_UNUSED_RESULT for make_writable()

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People often call
  gst_caps_make_writable (caps);
instead of
  caps = gst_caps_make_writable (caps);
and cause a bug. Warning about an unused return value helps here.

See https://bugzilla.gnome.org/show_bug.cgi?id=616541#c2 for an example.
This commit is contained in:
Benjamin Otte 2010-04-26 21:52:07 +02:00
parent b748da35d6
commit 31832d3c21
1 changed files with 1 additions and 1 deletions
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2
gst/gstcaps.h
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@ -186,7 +186,7 @@ GstCaps * gst_caps_new_full_valist (GstStructure *structure,
/* reference counting */
GstCaps * gst_caps_ref (GstCaps *caps);
GstCaps * gst_caps_copy (const GstCaps *caps);
GstCaps * gst_caps_make_writable (GstCaps *caps);
GstCaps * gst_caps_make_writable (GstCaps *caps) G_GNUC_WARN_UNUSED_RESULT;
void gst_caps_unref (GstCaps *caps);
GType gst_static_caps_get_type (void);