man: document that sd_bus_message_read_array() only supports trivial types
Fixes: #14641
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@ -48,6 +48,10 @@
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appropriate for the data type. The data is part of the message — it may not be modified and is
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valid only as long as the message is referenced. After this function returns, the "read pointer"
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points at the next element after the array.</para>
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<para>Note that this function only supports arrays of trivial types, i.e. arrays of booleans, the various
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integer types, as well as floating point numbers. In particular it may not be used for arrays of strings,
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structures or similar.</para>
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</refsect1>
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<refsect1>
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@ -68,8 +72,8 @@
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<varlistentry>
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<term><constant>-EINVAL</constant></term>
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<listitem><para>Specified type is invalid or the message parameter or one of the output
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parameters are <constant>NULL</constant>.</para></listitem>
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<listitem><para>Specified type is invalid or not a trivial type (see above), or the message
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parameter or one of the output parameters are <constant>NULL</constant>.</para></listitem>
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</varlistentry>
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<varlistentry>
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