sequencer_file_number_exists_c

	status.i4.v = sequencer_file_number_exists_c(sequencer_mode.i4.v,
						     file_number.i4.v)

	This routine determines if a Sequencer file number exists.

	sequencer_mode	Sequencer mode
	file_number	file number to check

	This function returns ACNET status values as follows:

	CLIB_INVARG		invalid Sequencer mode
	SQL_xxx			error reading database information
	TRUE			file number exists
	FALSE			file number does not exist

	This function requires the following include files:

	ul_cbsaux_h:auxlib_misc_h, cnsparam_h, acnet_errors_h

	Related functions:

	sequencer_file_name_to_number_c, sequencer_file_get_directory_info_c,
	sequencer_file_get_entries_c, sequencer_file_find_device_c,
	sequencer_execute_file_c, sequencer_name_to_mode,
	sequencer_mode_to_name_c, sequencer_maximum_mode_number

	C/C++ usage:

	int	status;
	int	sequencer_mode = SEQ_MODE_STUDIES;
	int	file_number = FILE_NUMBER;

	status = sequencer_file_number_exists_c(sequencer_mode,file_number);