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[Ada] Remove bound checks from Ada.Calendar

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Hristian Kirtchev <kirtchev at adacore dot com>
Date: Thu, 16 Aug 2007 10:19:47 +0200
Subject: [Ada] Remove bound checks from Ada.Calendar

Tested on i686-linux, committed on trunk

This patch removes unnecessary bound checks from arithmetic operators.
The Ada RM does not require the raise of Time_Error when the retult of
such operation is outside the bounds of Ada time.

2007-08-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* a-calend-vms.adb, a-calend.adb ("+", "-", Add, Subtract): Remove
	calls to Check_Within_Time_Bounds.
	("+", "-", Add, Subtract): Remove calls to Check_Within_Time_Bounds.
	(Difference): Account for possible rounding of the resulting difference

Attachment: difs
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