c++: variants: don't leak the lookahead in error recovery

[bison.git] / etc / README

* bench.pl
A primitive Perl script to run benches.  Currently its only bench is
the usual calculator: it has a lightweight processing part (but not
null), so it is really emphasizing the cost of the whole parsing
(including scanning and I/O).

Set the envvars BISON and CC to the programs and flags you want to
use.  They default to bison and gcc.  To run a non-installed bison
from a tarball built in _build, I suggest the following.

     BISON=_build/tests/bison CC='gcc -O2' ./bench.pl

(The _build/tests/bison wrapper makes sure that _build/src/bison will
use the tarballs' skeletons, not those already installed as a
straightforward use of _build/src/bison would.)

--

Copyright (C) 2006, 2009-2015 Free Software Foundation, Inc.

This file is part of Bison, the GNU Compiler Compiler.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

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