Fixes for #79347, Ron Arts.

Fixes for #79347, Ron Arts.

Tue May  7 11:24:22 2002  Owen Taylor  <otaylor@redhat.com>

        Fixes for #79347, Ron Arts.

        * glib/gqsort.c (g_qsort_with_data): Handle 0 elements,
        don't g_return_if_fail().

        * tests/qsort-test.c (main): Add a 0 element test.

        * glib/garray.c (g_[ptr_]array_sort_with[_data]):
        Remove invalid assertions that array->pdata != NULL ..
        it's NULL for 0 elements which is a valid case.