is_unscalable.i4.v = is_unscalable_primary_transform_c(primary_index.i4.v)

	This routine determines if a primary transform index is
	not intended for scaling but simply acts as a place holder.

	primary_index	primary transform index

	This function returns status values as follows:

	TRUE			scaled to a string
	FALSE			scaled to a floating point value

	This function requires the following include files:

	clib_h, cnsparam_h

	Related functions:

	is_string_common_transform_c, is_linear_common_transform_c,
	is_interpolated_common_transform_c, common_transform_num_const_c,
	pdudpu, pdudpu_ext, pdudcu, pdudcu_ext, pdpucu, pdpucu_ext, pdpucu8,
	pdcupu, pdcupu_ext, pdcupu8, pdcuud, pdcuud8, pcpuud, pdimax, pdulen,
	pdb_valid_length_c, pdb_scaling_table_limits_c

	C/C++ usage:

	int	is_unscalable;
	int	primary_index = 68;

	is_unscalable = is_unscalable_primary_transform_c(primary_index);