Releases all memory associated with a
GVariantBuilder structure itself.
It typically only makes sense to do this on a stack-allocated
GVariantBuilder if you want to abort building the value part-way
through. This function need not be called if you call
g_variant_builder_end() and it also doesn’t need to be called on
builders allocated with
g_variant_builder_unref() for that).
This function leaves the
GVariantBuilder structure set to all-zeros.
It is valid to call this function on either an initialised
GVariantBuilder or one that is set to all-zeros but it is not valid
to call this function on uninitialised memory.
Available since: 2.24
This method is not directly available to language bindings.