hstore_contained(PG_FUNCTION_ARGS)
{
	PG_RETURN_DATUM(DirectFunctionCall2(hstore_contains,
										PG_GETARG_DATUM(1),
										PG_GETARG_DATUM(0)
										));
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.