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-rw-r--r--doc/dbus-specification.xml7
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/dbus-specification.xml b/doc/dbus-specification.xml
index 9e33944c..ac98d1ca 100644
--- a/doc/dbus-specification.xml
+++ b/doc/dbus-specification.xml
@@ -251,7 +251,12 @@
but is useful in code that implements the protocol. This type code
is specified to allow such code to interoperate in non-protocol contexts.
</para>
-
+
+ <para>
+ Empty structures are not allowed; there must be at least one
+ type code between the parentheses.
+ </para>
+
<para>
<literal>ARRAY</literal> has ASCII character 'a' as type code. The array type code must be
followed by a <firstterm>single complete type</firstterm>. The single