2006-02-13 Bob Duff <duff@adacore.com>

	* s-valint.adb (Scan_Integer): Call Scan_Raw_Unsigned instead of
	Scan_Unsigned, so we do not scan leading blanks and sign twice.
	Integer'Value("- 5") and Integer'Value("-+5") now correctly
	raise Constraint_Error.

	* s-vallli.adb (Scan_Long_Long_Integer): Call
	Scan_Raw_Long_Long_Unsigned instead of Scan_Long_Long_Unsigned, so we
	do not scan leading blanks and sign twice.
	Integer'Value("- 5") and Integer'Value("-+5") now correctly
	raise Constraint_Error.

	* s-valllu.ads, s-valllu.adb (Scan_Raw_Long_Long_Unsigned,
	Scan_Long_Long_Unsigned): Split out most of the processing from
	Scan_Long_Long_Unsigned out into
	Scan_Raw_Long_Long_Unsigned, so that Val_LLI can call the Raw_ version.
	This prevents scanning leading blanks and sign twice.
	Also fixed a bug: Modular'Value("-0") should raise Constraint_Error
	See RM-3.5(44).

	* s-valuns.ads, s-valuns.adb (Scan_Raw_Unsigned, Scan_Unsigned): Split
	out most of the processing from Scan_Unsigned out into
	Scan_Raw_Unsigned, so that Val_LLI can call the Raw_ version.
	This prevents scanning leading blanks and sign twice.

	* s-valuti.ads, s-valuti.adb (Scan_Plus_Sign): Add Scan_Plus_Sign, for
	use with Modular'Value attribute.
	(Scan_Plus_Sign): Add Scan_Plus_Sign, for use with Modular'Value
	attribute.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111101 138bc75d-0d04-0410-961f-82ee72b054a4

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