structure_name_exists

	status.i4.v = structure_name_exists(name.i1a.r)

	This routine determines if a structure with a given name exists.

	name		null terminated structure name
			(Note: The name format is [{class}.]{struct}.)

	This function returns status values as follows:

	TRUE			structure name exists
	FALSE			structure name does not exist
	CLIB_AMBIGUOUS		ambiguous name (must specify class name)
	SQL_xxx			error retrieving structure description

	This function requires the following include files:

	cnsparam_h, cbslib_h, acnet_errors_h

	Related functions:

	structure_get_names_c, structure_size_c, structure_field_data,
	structure_field_info, structure_get_defaults_c, structure_menu_c,
	structure_edit_c, structure_convert_floats_c,
	structure_convert_enum_value_c, structure_build_name,
	structure_parse_name, structure_cache, structure_get_description

	C/C++ usage:

	static const char	name[] = "my class.my structure";
	int	status;

	status = structure_name_exists(name);