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Stop storing rules from 1 to nrules + 1.

Browse Source 
* src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
* src/nullable.c, src/output.c, src/print.c, src/reader.c
* src/reduce.c: Allocate and free from &rules[0], not &rules[1].
Iterate from 0 to nrules.
Use rule_number_as_item_number and item_number_as_rule_number.
Adjust to `derive' now containing possibly 0.
* src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
Handle the `- 1' part in rule numbers from/to item numbers.
* src/conflicts.c (log_resolution): Fix the message which reversed
shift and reduce.
* src/output.c (action_row): Initialize default_rule to -1.
(token_actions): Adjust.
* tests/sets.at (Nullable, Firsts): Fix the previously bogus
expected output.
* tests/conflicts.at (Resolved SR Conflicts): Likewise.
This commit is contained in:
Akim Demaille
2002-07-25 21:21:02 +00:00
parent 4a2a22f4c0
commit 4b3d3a8e46
15 changed files with 124 additions and 104 deletions
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6
src/reader.c
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@@ -406,11 +406,11 @@ static void
packgram (void)
{
unsigned int itemno = 0;
rule_number_t ruleno = 1;
rule_number_t ruleno = 0;
symbol_list_t *p = grammar;
ritem = XCALLOC (item_number_t, nritems);
rules = XCALLOC (rule_t, nrules) - 1;
rules = XCALLOC (rule_t, nrules);
while (p)
{
@@ -447,7 +447,7 @@ packgram (void)
rules[ruleno].precsym = ruleprec;
rules[ruleno].prec = ruleprec;
}
ritem[itemno++] = -ruleno;
ritem[itemno++] = rule_number_as_item_number (ruleno);
++ruleno;
if (p)