construct_point(PG_FUNCTION_ARGS)
{
	float8		x = PG_GETARG_FLOAT8(0);
	float8		y = PG_GETARG_FLOAT8(1);

	PG_RETURN_POINT_P(point_construct(x, y));
}

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