X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/2c8a9dfa1d15d0588a7f45393aeae7305396a895..630e182b7ba2257805c49424c96b9dc03a113668:/ChangeLog

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+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	Because useless nonterminals are now kept alive (instead of being
+	`destroyed'), we now sometimes examine them, and store information
+	related to them.  Hence we need to know their number, and adjust
+	memory allocations.
+
+	* src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
+	static.
+	* src/LR0.c (allocate_itemsets): The memory allocated to
+	`symbol_count' was used for two different purpose: once to count
+	the number of occurrences of each symbol, and later reassigned to
+	`shift_symbol', containing the symbol that can be shifted from a
+	given state.
+	Deobfuscate, i.e., allocate, use and free `symbol_count' here
+	only, and...
+	(new_itemsets): Allocate `shift_symbol' here.
+	(allocate_itemsets): symbol_count includes useless nonterminals.
+	Make room for them.
+	(free_storage): Use `free', not `XFREE', for pointers that cannot
+	be null.
+
+	
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/nullable.c (set_nullable): Deobfuscate the handling of
+	ritem.
+	`symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+	
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/gram.c, src/gram.h (ritem_print): New.
+	* src/gram.c (dummy): Remove, now there is actual code in gram.c.
+	(This useless function was defined only to work around VMS linkers
+	that can't handle compilation units with variables only).
+	* src/reduce.c (dump_grammar): Use it to trace the construction of
+	ritem.
+
+2001-12-04  Paul Eggert  <eggert@twinsun.com>
+
+	* src/bison.simple (union yyalloc): Change member names
+	to be the same as the stack names.
+	(yyparse): yyptr is now union yyalloc *, not char *.
+	(YYSTACK_RELOCATE): Likewise.  This avoids a GCC warning,
+	and may generate better code on some machines.
+	(yystpcpy): Use prototype if __STDC__ is defined, not just
+	if __cplusplus is defined.
+	
 2001-11-30  Akim Demaille  <akim@epita.fr>
 
 	* configure.in (WARNING_CFLAGS): Add -Werror when possible.