Parent Directory | Revision Log | Patch
revision 1.10 by akim, Sat Jun 15 18:23:33 2002 UTC | revision 1.11 by akim, Mon Jul 29 17:28:56 2002 UTC | |
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# | Line 332 Useless rules | Line 332 Useless rules |
332 | ]]) | ]]) |
333 | ||
334 | AT_CLEANUP | AT_CLEANUP |
335 | ||
336 | ||
337 | ||
338 | ## ---------------- ## | |
339 | ## Empty Language. ## | |
340 | ## ---------------- ## | |
341 | ||
342 | AT_SETUP([Empty Language]) | |
343 | ||
344 | AT_DATA([[input.y]], | |
345 | [[%output="input.c" | |
346 | %% | |
347 | exp: exp; | |
348 | ]]) | |
349 | ||
350 | AT_CHECK([[bison input.y]], 1, [], | |
351 | [[input.y: warning: 2 useless nonterminals and 2 useless rules | |
352 | input.y:3.1-3: fatal error: start symbol exp does not derive any sentence | |
353 | ]]) | |
354 | ||
355 | AT_CLEANUP |
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