c++: fix several issues with locations

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.
2026-03-09 04:13:03 +00:00 · 2013-04-11 09:53:18 +02:00
parent 08cc1a3b18
commit 75ae829984
5 changed files with 119 additions and 31 deletions
--- a/5
+++ b/5
@@ -569,6 +569,11 @@ GNU Bison NEWS
      ...
    }

+*** C++ locations
+
+  There are operator- and operator-= for 'location'.  Negative line/column
+  increments can no longer underflow the resulting value.
+
 * Noteworthy changes in release ?.? (????-??-??) [?]

 ** Bug fixes