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[bison.git] / ChangeLog

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+2004-12-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+       * NEWS: Version 2.0.  Reformat the existing news items since
+       1.875, so that related items are grouped together.
+       * configure.ac (AC_INIT): Bump version to 1.875f.
+       * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
+
+       * data/lalr1.cc (yydestruct_): Pacify unused variable warning
+       for yymsg, too.
+
+       * src/LR0.c (new_itemsets): Use memset rather than zeroing by
+       hand.  This avoids a warning about comparing int to size_t when
+       GCC warnings are enabled.
+
 2004-12-22  Paul Eggert  <eggert@cs.ucla.edu>
 
+       * NEWS: Bison-generated parsers no longer default to using the
+       alloca function (when available) to extend the parser stack, due
+       to widespread problems in unchecked stack-overflow detection.
+       * data/glr.c (YYMAXDEPTH): Remove undef when zero.  It's the user's
+       responsibility to set it to a positive value.  This lets the user
+       specify a value that is not a preprocessor constant.
+       * data/yacc.c (YYMAXDEPTH): Likewise.
+       (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
+       * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
+       to be a compile-time constant.  However, explain the constraints on it.
+       Also, explain the constraints on YYINITDEPTH.
+       (Table of Symbols): Explain that alloca is no longer the default.
+       Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
+       to 1.
+
        * doc/bison.texinfo (Location Default Action): Mention that n must
        be zero when k is zero.  Suggested by Frank Heckenbach.