a-convec.ads, [...]: (operator "&"): handle potential overflow for large index types

a-convec.ads, [...]: (operator "&"): handle potential overflow for large index types

2006-02-17  Matthew Heaney  <heaney@adacore.com>

	* a-convec.ads, a-convec.adb:
	(operator "&"): handle potential overflow for large index types
	(Insert): removed Contraint_Error when using large index types
	(Insert_Space): removed Constraint_Error for large index types
	(Length): moved constraint check from Length to Insert

	* a-coinve.ads, a-coinve.adb: Stream attribute procedures are declared
	as not null access.
	Explicit raise statements now include an exception message.
	(operator "&"): handle potential overflow for large index types
	(Insert): removed Contraint_Error when using large index types
	(Insert_Space): removed Constraint_Error for large index types
	(Length): moved constraint check from Length to Insert

From-SVN: r111197