X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3067fbef531832df1e43bbd28787655808361eed..f67d13aa6c0869bae958cd2a8b795468464ecf13:/ChangeLog

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+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (matrix_print): New.
+	(transpose): Use it.
+	Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (maxrhs): Move to...
+	* src/gram.c, src/gram.h (ritem_longest_rhs): here.
+	* src/lalr.c (build_relations): Adjust.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (transpose): Free the memory allocated to the
+	argument, as it is replaced by the results by the unique caller.
+	(build_relations): Merely invoke transpose: it handles the memory
+	deallocation.
+	Improve variable locality.
+	Avoid variables used as mere abbreviations.
+	(compute_lookaheads): Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (initialize_F): Improve variable locality.
+	Avoid variables used as mere abbreviations.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/derives.c (print_derives): Display the ruleno.
+	* src/lalr.c (initialize_F, transpose): Better variable locality
+	to improve readability.
+	Avoid variables used as mere abbreviations.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/lalr.c (traverse): Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+	* src/nullable.c (set_nullable): Use a for loop to de-obfuscate
+	the handling of squeue.
+	`symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+	
+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.