id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
562	psFitsOpen mode parameter definition	robert.desonia@…	eugene	"In the SDRS, the 'mode' parameter is defined to be either 'r', 'r+', 'rw', or 'w'.  There are two distinct 
problems with this:

1.  mode is a const char, not a const char*, i.e., a string.  This makes multiple character values like 'r+' 
or 'rw' impossible.

2.  CFITSIO supports only two options: read-only or read-write.  The 'w' value, i.e. write-only, is not 
possible.

Givent the limitations of CFITSIO, I suggest that the mode parameter be simplified to a boolean value to 
indicate if the file is to be writable, e.g.:

psFits* psFitsOpen(const char* filename, bool writable);

-rdd"	defect	closed	high		PSLib SDRS	unspecified	normal	fixed