g-catiio.adb (Sec_Number): New type used to compute the number of seconds since 1...

g-catiio.adb (Sec_Number): New type used to compute the number of seconds since 1-1-1970.

2006-02-13  Pascal Obry  <obry@adacore.com>

	* g-catiio.adb (Sec_Number): New type used to compute the number of
	seconds since 1-1-1970.
	(Image) [Natural]: The parameter was an Integer, as we can't deal with
	negative numbers (years, months...) it is better to have a Natural here.
	Code clean-up.
	(Image) [Number]: Change parameter from Long_Integer to Number.
	(Image): Use Number type to compute the seconds since 1-1-1970 to fix an
	overflow for dates past year 2038.

From-SVN: r111072