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c++: fix several issues with locations

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Reported by Daniel Frużyński.
http://lists.gnu.org/archive/html/bug-bison/2013-02/msg00000.html

* data/location.cc (position::columns, position::lines): Check for
underflow.
Fix some weird function signatures.
(location): Accept signed integers as arguments where appropriate.
Add operator- and operator+=.
* doc/bison.texi (C++ position, C++ location): Various fixes
and completion.
* tests/c++.at (C++ Locations): New tests.
This commit is contained in:
Akim Demaille
2013-04-11 09:53:18 +02:00
parent 08cc1a3b18
commit 75ae829984
5 changed files with 119 additions and 31 deletions
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@@ -29,6 +29,7 @@ Cris Bailiff c.bailiff+bison@awayweb.com
Cris van Pelt cris@amf03054.office.wxs.nl
Csaba Raduly csaba_22@yahoo.co.uk
Dagobert Michelsen dam@baltic-online.de
Daniel Frużyński daniel@poradnik-webmastera.com
Daniel Hagerty hag@gnu.org
David J. MacKenzie djm@gnu.org
David Kastrup dak@gnu.org