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[Ada] Raise Program_Error on default initialization of references

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Bob Duff <duff at adacore dot com>
Date: Fri, 22 May 2015 06:53:42 -0400
Subject: [Ada] Raise Program_Error on default initialization of references
Authentication-results: sourceware.org; auth=none

This patch causes default initialization of objects of types
Constant_Reference_Type and Reference_Type in the containers packages to raise
Program_Error as required by the RM.

Tested on x86_64-pc-linux-gnu, committed on trunk

2015-05-22  Bob Duff  <duff@adacore.com>

	* a-cborma.ads, a-cidlli.ads, a-cimutr.ads, a-ciormu.ads,
	* a-cihase.ads, a-cohama.ads, a-coorse.ads, a-cbhama.ads,
	* a-cborse.ads, a-comutr.ads, a-ciorma.ads, a-cobove.ads,
	* a-coormu.ads, a-convec.ads, a-cohase.ads, a-coinho.ads,
	* a-cbdlli.ads, a-cbmutr.ads, a-cbhase.ads, a-cdlili.ads,
	* a-cihama.ads, a-coinve.ads, a-ciorse.ads, a-coorma.ads,
	* a-coinho-shared.ads (Constant_Reference_Type, Reference_Type):
	Add an initialization expression "raise Program_Error". See,
	for example, RM-A.18.2(148.4).

Attachment: difs
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