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  /external/bison/src/
gram.h 13 This program is distributed in the hope that it will be useful,
78 RULES[R].useful -- true iff the rule is used (i.e., false if thrown
196 bool useful; member in struct:__anon4727
208 useful in the grammar. */
215 /* Return true IFF the rule is not flagged as useful but is useful in the
258 /* Print the grammar's useful rules on OUT. */
266 /* Report on STDERR the rules that are not flagged USEFUL, using the
reduce.c 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, useles
247 int useful = 0; local
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