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glib/tests/gvariant: Not try to memcpy NULL data
It's undefined behavior
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@ -2327,7 +2327,15 @@ test_byteswap (void)
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* often makes something non-normal but still readable. */
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three_size_copy = three.size + 1;
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three_data_copy = g_malloc (three_size_copy);
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memcpy (three_data_copy, three.data, three.size);
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if (three.data)
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{
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g_assert_cmpuint (three.size, !=, 0);
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memcpy (three_data_copy, three.data, three.size);
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}
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else
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{
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g_assert_cmpuint (three.size, ==, 0);
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}
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three_data_copy[three.size] = '\0';
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three_variant = g_variant_new_from_data (G_VARIANT_TYPE (g_variant_type_info_get_type_string (three.type_info)),
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