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[PATCH] PR libstdc++/89446 fix null pointer dereference in char_traits

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Sat, 23 Feb 2019 01:02:20 +0000
Subject: [PATCH] PR libstdc++/89446 fix null pointer dereference in char_traits

	PR libstdc++/89446
	* include/bits/char_traits.h (__constant_char_array): Check index is
	in range before dereferencing.
	* testsuite/21_strings/basic_string_view/operators/char/89446.cc:
	New test.

Tested x86_64-linux, committed to gcc-8-branch and gcc-7-branch.

Attachment: patch.txt
Description: Text document

Follow-Ups:
- Re: [PATCH] PR libstdc++/89446 fix null pointer dereference in char_traits
  - From: Jakub Jelinek
- Re: [PATCH] PR libstdc++/89446 fix null pointer dereference in char_traits
  - From: Jonathan Wakely

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