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Reported by Uxio Prego. https://lists.gnu.org/archive/html/help-bison/2018-11/msg00031.html We also need to move the unreachable 'goto' to a reachable place, otherwise clang complains about the code being unreachable anyway. See also https://bugs.llvm.org/show_bug.cgi?id=39736. Interestingly, we don't have to apply that trick to `#define YYCDEBUG if (false) std::cerr`, clang does not warn when the code comes from macro expansion. * configure.ac: Use -Wunreachable-code when supported. * data/lalr1.cc, data/yacc.c: Pacify clang's warning about `if (0)` by using a macro. Another possibility was to move this statement to a reachable place. * tests/actions.at, tests/c++.at: Avoid generating unreachable code.
This directory contains data needed by Bison. * Skeletons Bison skeletons: the general shapes of the different parser kinds, that are specialized for specific grammars by the bison program. Currently, the supported skeletons are: - yacc.c It used to be named bison.simple: it corresponds to C Yacc compatible LALR(1) parsers. - lalr1.cc Produces a C++ parser class. - lalr1.java Produces a Java parser class. - glr.c A Generalized LR C parser based on Bison's LALR(1) tables. - glr.cc A Generalized LR C++ parser. Actually a C++ wrapper around glr.c. These skeletons are the only ones supported by the Bison team. Because the interface between skeletons and the bison program is not finished, *we are not bound to it*. In particular, Bison is not mature enough for us to consider that "foreign skeletons" are supported. * m4sugar This directory contains M4sugar, sort of an extended library for M4, which is used by Bison to instantiate the skeletons. * xslt This directory contains XSLT programs that transform Bison's XML output into various formats. - bison.xsl A library of routines used by the other XSLT programs. - xml2dot.xsl Conversion into GraphViz's dot format. - xml2text.xsl Conversion into text. - xml2xhtml.xsl Conversion into XHTML. ----- Local Variables: mode: outline End: Copyright (C) 2002, 2008-2015, 2018 Free Software Foundation, Inc. This file is part of GNU Bison. 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/>.