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Akim Demaille 9524161147 tests: c++: fix symbol lookup issue 
Sun C 5.13 SunOS_sparc 2014/10/20 reports errors on tests 430-432.

Reported by Dennis Clarke.
<http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00087.html>

* tests/c++.at (Variants): Be sure to emit operator<< before using it:
use "%code top" rather than "%code".
Prefer std::vector to std::list.
Do not define anything in std::, to avoid undefined behavior.
 2015-01-26 18:44:38 +01:00
Akim Demaille 7ca7a3abf3 maint: post-release administrivia 
* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.
 2015-01-23 14:13:40 +01:00
Akim Demaille c4e686a1ab version 3.0.4 
* NEWS: Record release date.
v3.0.4 		2015-01-23 13:53:53 +01:00
Akim Demaille 2646fd012d gnulib: update 2015-01-23 11:27:10 +01:00
Akim Demaille a2c525b34c build: re-enable compiler warnings, and fix them 
There are warnings (-Wextra) in generated C++ code:

  ltlparse.cc: In member function 'ltlyy::parser::symbol_number_type
  ltlyy::parser::by_state::type_get() const':
  ltlparse.cc:452:33: warning: enumeral and non-enumeral type in
  conditional expression
      return state == empty_state ? empty_symbol : yystos_[state];

Reported by Alexandre Duret-Lutz.

It turns out that -Wall and -Wextra were disabled because of a stupid
typo.

* configure.ac: Fix the stupid typo.
* data/lalr1.cc, src/AnnotationList.c, src/InadequacyList.c,
* src/ielr.c, src/print.c, src/scan-code.l, src/symlist.c,
* src/symlist.h, src/symtab.c, src/tables.c, tests/actions.at,
* tests/calc.at, tests/cxx-type.at, tests/glr-regression.at,
* tests/named-refs.at, tests/torture.at:
Fix warnings, mostly issues about variables used only with assertions,
which are disabled with -DNDEBUG.
 2015-01-23 07:52:50 +01:00
Akim Demaille 658b189348 tests: c++: fix a C++03 conformance issue 
This fixes test 241 on xLC:

"input.y", line 42.11: 1540-0274 (S) The name lookup for "report" did not find a declaration.
"input.y", line 42.11: 1540-1292 (I) Static declarations are not considered for a function call if the function is not qualified.

where report is:

  static void
  report (std::ostream& yyo, int ival, float fval)
  {
    yyo << "ival: " << ival << ", fval: " <<  fval;
  }

and line 42 is:

  %printer { report (yyo, $$,       $<fval>$); } <ival>;

It turns out that indeed this function must not be declared static,
<http://stackoverflow.com/a/17662745/1353549>.  Let's put it into an
anonymous namespace.

Reported by Thomas Jahns.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00059.html

* tests/actions.at (Qualified $$ in actions): Don't use "static",
prefer anonymous namespace.
 2015-01-22 08:45:44 +01:00
Akim Demaille a06344172a tests: fix a title 
* tests/conflicts.at: De-overquote.
 2015-01-20 20:47:02 +01:00
Akim Demaille 573654ca9e c++: reserve 200 slots in the parser's stack 
This is consistent with what is done with yacc.c and glr.c.  Because
it also avoids that the stack needs to be resized very soon, it should
help keeping tests about destructors more reliable.

Indeed, if the stack is created too small, very soon the C++ library
needs to enlarge it, which means creating a new one, copying the
elements from the initial one onto it, and then destroy the elements
of the initial stack: that would be a spurious call to a destructor.

Reported by Thomas Jahns.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00059.html

* data/stack.hh (stack::stack): Reserve 200 slots.
* tests/c++.at: Remove traces of stack expansions.
 2015-01-20 20:45:48 +01:00
Akim Demaille 0b0370ff42 tests: be more robust to unrecognized synclines, and try to recognize xlc 
Reported by Thomas Jahns.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00059.html

* tests/synclines.at (AT_SYNCLINES_COMPILE): Rename as...
(_AT_SYNCLINES_COMPILE): this.
Try to recognize xlc locations.
(AT_SYNCLINES_COMPILE): New.  Skips the test if we can't read the
synclines.
 2015-01-20 18:16:09 +01:00
Akim Demaille eaa476a7e9 tests: fix C++ conformance 
Reported by Thomas Jahns.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00059.html

* tests/c++.at (Exception safety): Add missing include.
Don't use const_iterator for erase.
 2015-01-20 18:04:24 +01:00
Akim Demaille 16832bf546 build: fix some warnings 
Reported by John Horigan.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00034.html

* src/graphviz.c, src/symtab.h: Address compiler warnings.
 2015-01-18 15:41:15 +01:00
Akim Demaille 0ab29b7c20 build: avoid infinite recursions on include_next 
On MacOS X 10.5 PPC with Apple's GCC 4.0.1:

  % uname -a
  Darwin aria.cielonegro.org 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:0
  1 PDT 2009; root:xnu-1228.15.4~1/RELEASE_PPC Power Macintosh
  % gcc --version
  powerpc-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5493)
  Copyright (C) 2005 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

building in place enters into an infinite recursion on "#include_next":

  % gmake V=1
  [snip]
  depbase=`echo lib/math.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
  gcc -std=gnu99    -I. -Ilib -I. -I./lib   -g -O2 -MT lib/math.o -MD -MP -MF $depbase.Tpo -c -o lib/math.o lib/math.c &&\
  mv -f $depbase.Tpo $depbase.Po
  In file included from lib/math.h:27,
                   from lib/math.h:27,
                   from lib/math.h:27,
                   from lib/math.h:27,
  [snip]
                   from lib/math.h:27,
                   from lib/math.h:27,
                   from lib/math.c:3:
  lib/math.h:27:23: error: #include nested too deeply
  Makefile:3414: recipe for target 'lib/math.o' failed
  gmake[2]: *** [lib/math.o] Error 1

Using -I./lib instead of -Ilib fixes the problem.

Reported by Pho.
<https://lists.gnu.org/archive/html/bison-patches/2014-01/msg00000.html>

* Makefile.am (AM_CPPFLAGS): Use -I./lib instead of -Ilib.
 2015-01-16 10:52:17 +01:00
Akim Demaille 559b30881d doc: minor fixes 
* doc/bison.texi: Fix warnings about colon in reference names.
* data/bison.m4, src/files.h: Fix comments.
* doc/Doxyfile.in: update.
 2015-01-16 10:52:17 +01:00
Akim Demaille 88ffc4b907 gnulib: strtoul is considered obsolete and now useless 
* bootstrap.conf: here.
 2015-01-15 17:26:32 +01:00
Akim Demaille 3e82dfaa0d c++: avoid warnings when destructors don't use $$ 
* data/c++.m4: here.
 2015-01-15 14:29:22 +01:00
Akim Demaille 11d820174f maint: post-release administrivia 
* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.
 2015-01-15 10:24:34 +01:00
Akim Demaille da6f07468a version 3.0.3 
* NEWS: Record release date.
v3.0.3 		2015-01-15 10:04:53 +01:00
Akim Demaille 93ee7a47e7 gnulib: update 2015-01-15 09:36:14 +01:00
Akim Demaille ca5a716303 tests: split a large test case into several smaller ones 
* tests/conflicts.at (AT_CONSISTENT_ERRORS_CHECK): Move AT_SETUP/AT_CLEANUP
into it, so that we don't skip non Java tests following a test case in Java.
 2015-01-13 14:19:02 +01:00
Akim Demaille d72642d691 package: a bit of trouble shooting indications 
* README-hacking: here.
 2015-01-12 12:11:53 +01:00
Akim Demaille 9a91e7f246 doc: liby's main arms the internationalization 
Reported by Nicolas Bedon.
<https://lists.gnu.org/archive/html/bug-bison/2014-11/msg00005.html>

* doc/bison.texi (Yacc Library): Document the call the setlocale.
 2015-01-12 11:37:24 +01:00
Akim Demaille 671850a1c3 bison: avoid warnings from static code analysis 
A static analysis tool reports that some callers of symbol_list_n_get
might get NULL and not handle it properly.  This is not the case, yet
we can suppress this pattern.

Reported by Mike Sullivan.
<https://lists.gnu.org/archive/html/bug-bison/2013-12/msg00027.html>

* src/symlist.c (symbol_list_n_get): Actually it is never called
to return 0.  Enforce this postcondition via aver.
(symbol_list_n_type_name_get): Simplify accordingly.  In particular,
discards a (translated) useless error message.
* src/symlist.h: Adjust documentation.
* src/scan-code.l: Style change.
 2015-01-09 15:27:59 +01:00
Akim Demaille ee028dceff c++: fix the use of destructors when variants are enabled 
When using variants, destructors generate invalid code.
<http://lists.gnu.org/archive/html/bug-bison/2014-09/msg00005.html>
Reported by Michael Catanzaro.

* data/c++.m4 (~basic_symbol): b4_symbol_foreach works on yysym:
define it.
* tests/c++.at (Variants): Check it.
 2015-01-09 13:54:58 +01:00
Akim Demaille e1d06b5235 style: tests: simplify the handling of some C++ tests 
* tests/c++.at: here.
(Doxygen): Pass %define, so that files such as position.hh etc.
are generated, instead of putting everything into input.hh.
 2015-01-08 16:08:00 +01:00
Akim Demaille 821394a3c8 c++: symbols can be empty, so use it 
The previous patches ensure that symbols (symbol_type and
stack_symbol_type) can be empty, cleared, and their emptiness can be
checked.  Therefore, yyempty, which codes whether yyla is empty or
not, is now useless.

In C skeletons (e.g., yacc.c), the fact that the lookahead is empty is
coded by "yychar = YYEMPTY", which is exactly what this patch
restores, since yychar/yytoken corresponds to yyla.type.

* data/lalr1.cc (yyempty): Remove.
Rather, depend on yyla.empty ().
 2015-01-08 16:07:59 +01:00
Akim Demaille 00cebd11d4 c++: variants: don't leak the lookahead in error recovery 
During error recovery, when discarding the lookeahead, we don't
destroy it, which is caught by parse.assert assertions.

Reported by Antonio Silva Correia.
With an analysis and suggested patch from Michel d'Hooge.
<http://savannah.gnu.org/support/?108481>

* tests/c++.at (Variants): Strengthen the test to try syntax errors
with discarded lookahead.
 2015-01-08 16:07:59 +01:00
Akim Demaille ee2f433512 c++: provide a means to clear symbols 
The symbol destructor is currently the only means to clear a symbol.
Unfortunately during error recovery we might have to clear the
lookahead, which is a local variable (yyla) that has not yet reached
its end of scope.

Rather that duplicating the code to destroy a symbol, or rather than
destroying and recreating yyla, let's provide a means to clear a
symbol.

Reported by Antonio Silva Correia, with an analysis from Michel d'Hooge.
<http://savannah.gnu.org/support/?108481>

* data/c++.m4, data/lalr1.cc (basis_symbol::clear, by_state::clear)
(by_type::clear): New.
(basic_symbol::~basic_symbol): Use clear.
 2015-01-08 16:07:59 +01:00
Akim Demaille 5422471cbb c++: clean up the handling of empty symbols 
* data/c++.m4, data/lalr1.cc (yyempty_): Remove, replaced by...
(empty_symbol, by_state::empty_state): these.
(basic_symbol::empty): New.
 2015-01-08 14:45:42 +01:00
Akim Demaille 8a4ec3595b c++: comment and style changes 
* data/c++.m4, data/lalr1.cc: More documentation.
Tidy.
* tests/c++.at (string_cast): Rename as...
(to_string): this C++11 name.
 2015-01-08 11:25:07 +01:00
Akim Demaille 7cf84b13a0 c++: variants: comparing addresses of typeid.name() is undefined 
Instead of storing and comparing pointers to names of types, store
pointers to the typeids, and compares the typeids.
Reported by Thomas Jahns.
<http://lists.gnu.org/archive/html/bug-bison/2014-03/msg00001.html>

* data/variant.hh (yytname_): Replace with...
(yytypeid_): this.
 2015-01-07 10:34:07 +01:00
Akim Demaille 56351d4c7b c++: locations: complete the API and fix comments 
There are no support for += between locations, and some comments are wrong.
Reported by Alexandre Duret-Lutz.

* data/location.cc: Fix.
* doc/bison.texi: Document.
* tests/c++.at: Check.
 2015-01-05 18:32:23 +01:00
Akim Demaille 478c4a8f49 build: do not clean figure sources in make clean 
"make clean && make" fails in in-tree builds.

* doc/local.mk (CLEANDIRS): Replace with...
(CLEANFILES): this safer list of files to clean.
 2015-01-05 14:41:46 +01:00
Akim Demaille a16074bb09 build: don't try to generate docs when cross-compiling 
When cross-compiling don't run the generated bison to update the docs.
Reported by Aaro Koskinen.
<http://lists.gnu.org/archive/html/bison-patches/2014-03/msg00000.html>

* configure.ac (CROSS_COMPILING): New.
* doc/local.mk: Use it.
 2015-01-05 12:27:27 +01:00
Akim Demaille 8386f6ef28 package: fix a reporter's name 
* THANKS, build-aux/git-log-fix: s/Bernd Edligner/Bernd Edlinger/.
 2015-01-04 18:00:51 +01:00
Akim Demaille 827bc59ca1 %union: fix the support for named %union 
Bison supports a union tag, for obscure reasons.  But it does a poor
job at it, especially since Bison 3.0.
Reported by Stephen Cameron and Tobias Frost.

It did not ensure that the name was not given several times.  An easy
way to do this is to make the %union tag be handled as a %define
variable, as they cannot be defined several times.

Since Bison 3.0, the synclines were wrongly placed, resulting in
invalid code.  Addressing this issue, because of the way the union tag
was stored (as a code muscle), would have been tedious.  Unless we
rather define the %union tag as a %percent variable, whose synclines
are easier to manipulate.

So replace the b4_union_name muscle by the api.value.union.name
%define variable, document, and check.

* data/bison.m4: Make sure that api.value.union.name has a keyword value.
* data/c++.m4: Make sure that api.value.union.name is not defined.
* data/c.m4 (b4_union_name): No longer use it, use api.value.union.name.
* doc/bison.texi (%define Summary): Document it.
* src/parse-gram.y (union_name): No longer define b4_uion_name, but
api.value.union.name.
* tests/input.at (Redefined %union name): New.
* tests/synclines.at (%union name syncline): New.
* tests/types.at: Check named %unions.
 2015-01-04 18:00:51 +01:00
Akim Demaille 3209eb1c4c package: bump to 2015 
Which also requires:

* gnulib: Update.
 2015-01-04 17:49:13 +01:00
Akim Demaille 975bb56431 flex: don't trust YY_USER_INIT 
Reported by Bernd Edligner and others.

* src/scan-gram.l: here.
 2014-12-31 14:54:43 +01:00
Akim Demaille 8d4dc896cb yacc.c: fix broken union when api.value.type=union and %defines are used 
Reported by Rich Wilson.

* data/c.m4 (b4_symbol_type_register): Append to b4_union_members,
not b4_user_union_members.
The latter invokes the former, but it is the former which is reinitialized
to empty by b4_value_type_setup_union.
* tests/types.at: Check it.

This reveals another bug, this time in the case of glr.c parsers.

* data/glr.c: Generate the header file before the implementation file,
to be sure that the setup is run before what depends on it.
 2014-12-31 14:39:05 +01:00
Akim Demaille a3c3c6f242 doc: fix missing xref 
Reported by xolodho.

* doc/bison.texi (Printer Decl): here.
 2014-12-31 12:49:39 +01:00
Akim Demaille 179b2419ba gnulib: update 2014-12-29 16:13:57 +01:00
Akim Demaille b702ec61ab location: remove some ugly debugging code traces 
* data/location.cc: here.
 2014-02-03 15:27:03 +01:00
Akim Demaille ab96bb2457 build: use abort to pacify compiler errors 
clang, with -DNDEBUG and -Werror fails on some functions that might
lack a return.  This is because aver is just another assert, discarded
with -DNDEBUG.  So use abort.

* src/muscle-tab.c, src/scan-skel.l: here.
 2014-02-03 15:27:02 +01:00
Akim Demaille fc51acddb4 package: bump to 2014 
* AUTHORS, ChangeLog-2012, Makefile.am, NEWS, PACKAGING, README,
* README-alpha, README-hacking, THANKS, TODO, bootstrap.conf,
* build-aux/darwin11.4.0.valgrind, build-aux/local.mk,
* build-aux/update-b4-copyright,
* build-aux/update-package-copyright-year, cfg.mk, configure.ac,
* data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4,
* data/c-like.m4, data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc,
* data/java-skel.m4, data/java.m4, data/lalr1.cc, data/lalr1.java,
* data/local.mk, data/location.cc, data/stack.hh, data/variant.hh,
* data/xslt/bison.xsl, data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl,
* data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint,
* djgpp/README.in, djgpp/config.bat, djgpp/config.sed,
* djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat,
* djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h,
* djgpp/testsuite.sed, doc/bison.texi, doc/local.mk, doc/refcard.tex,
* etc/README, etc/bench.pl.in, etc/local.mk,
* examples/calc++/calc++.test, examples/calc++/local.mk,
* examples/extexi, examples/local.mk, examples/mfcalc/local.mk,
* examples/mfcalc/mfcalc.test, examples/rpcalc/local.mk,
* examples/rpcalc/rpcalc.test, examples/test, examples/variant.yy,
* lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
* lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
* lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
* lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
* lib/local.mk, lib/main.c, lib/timevar.c, lib/timevar.def,
* lib/timevar.h, lib/vbitset.c, lib/vbitset.h, lib/yyerror.c,
* m4/bison-i18n.m4, m4/c-working.m4, m4/cxx.m4, m4/flex.m4,
* m4/timevar.m4, src/AnnotationList.c, src/AnnotationList.h,
* src/InadequacyList.c, src/InadequacyList.h, src/LR0.c, src/LR0.h,
* src/Sbitset.c, src/Sbitset.h, src/assoc.c, src/assoc.h,
* src/closure.c, src/closure.h, src/complain.c, src/complain.h,
* src/conflicts.c, src/conflicts.h, src/derives.c, src/derives.h,
* src/files.c, src/files.h, src/flex-scanner.h, src/getargs.c,
* src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c,
* src/graphviz.h, src/ielr.c, src/ielr.h, src/lalr.c, src/lalr.h,
* src/local.mk, src/location.c, src/location.h, src/main.c,
* src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c,
* src/named-ref.h, src/nullable.c, src/nullable.h, src/output.c,
* src/output.h, src/parse-gram.c, src/parse-gram.y, src/print-xml.c,
* src/print-xml.h, src/print.c, src/print.h, src/print_graph.c,
* src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
* src/reduce.h, src/relation.c, src/relation.h, src/scan-code.h,
* src/scan-code.l, src/scan-gram.h, src/scan-gram.l, src/scan-skel.h,
* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
* tests/actions.at, tests/atlocal.in, tests/bison.in, tests/c++.at,
* tests/calc.at, tests/conflicts.at, tests/cxx-type.at,
* tests/existing.at, tests/glr-regression.at, tests/headers.at,
* tests/input.at, tests/java.at, tests/javapush.at, tests/local.at,
* tests/local.mk, tests/named-refs.at, tests/output.at, tests/push.at,
* tests/reduce.at, tests/regression.at, tests/sets.at,
* tests/skeletons.at, tests/synclines.at, tests/testsuite.at,
* tests/torture.at, tests/types.at:
here.
 2014-02-03 15:27:02 +01:00
Paul Eggert 957255b82c doc: specify documentation encoding 
* doc/bison.texi: Add '@documentencoding UTF-8'; needed since the
manual contains UTF-8 characters.  This will cause the .info files
to contain UTF-8 quotes and the like, which should be OK nowadays.
Add @documentlanguage while we're at it.
 2014-01-03 11:08:50 -08:00
Akim Demaille b167e7ba0d package: install the examples 
Currently, we do not install the various examples extracted from the
documentation.  Let's do it, as they are useful starting points.

* configure.ac: When --enable-gcc-warnings is set, enable ENABLE_GCC_WARNINGS.
* examples/extexi: No longer issue synclines by default.
* examples/local.mk: Except if ENABLE_GCC_WARNINGS.
* examples/calc++/local.mk, examples/mfcalc/local.mk,
* examples/rpcalc/local.mk: Install the example files.
 2013-12-09 16:53:14 +01:00
Akim Demaille 85d57e27d2 package: install README and the like in docdir 
* Makefile.am: here.
 2013-12-09 16:53:14 +01:00
Akim Demaille 461f1516f8 diagnostics: fix the order of multiple declarations reports 
On

  %token FOO "foo"
  %printer {} "foo"
  %printer {} FOO

we report

  /tmp/foo.yy:2.10-11: error: %printer redeclaration for FOO
   %printer {} "foo"
            ^^
  /tmp/foo.yy:3.10-11:     previous declaration
   %printer {} FOO
            ^^

* src/symtab.c (locations_sort): New.
Use it.
* tests/input.at (Invalid Aliases): Stress the order of diagnostics.
 2013-12-09 16:53:03 +01:00
Akim Demaille 26eb4f0bdc symbol: provide an easy means to compare them in source order 
* src/symtab.c (symbols_sort): New.
(user_token_number_redeclaration): Taken from here.
 2013-12-09 16:03:03 +01:00
Akim Demaille 0bd5ee5f89 maint: post-release administrivia 
* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.
 2013-12-05 15:16:28 +01:00
Akim Demaille a3efd13e44 version 3.0.2 
* NEWS: Record release date.
v3.0.2 		2013-12-05 14:58:22 +01:00