Lines Matching defs:useful
13 This program is distributed in the hope that it will be useful,
72 /* A production is useful if all of the nonterminals in its appear
73 in the set of useful nonterminals. */
109 nonterminals in the RHS are in useful. Only productions not in
111 saved to be used when finding useful productions: only
166 /* If the start symbol isn't useful, then nothing will be useful. */
199 /* Tokens 0, 1, and 2 are internal to Bison. Consider them useful. */
241 rules[r].useful = bitset_test (P, r);
245 /* Map the nonterminals to their new index: useful first, useless
248 int useful = 0;
253 rules_sorted[rules[r].useful ? useful++ : useless++] = rules[r];
291 /* Map the nonterminals to their new index: useful first, useless
