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Consider the following expression grammar, The semantic rules for expression calculation-are stated next to each grammar production.
The above grammar and the semantic rules are fed to a yacc tool (which is an LALR(1) parser generator) for parsing and evaluating arithmetic expressions. Which one of the following is true . about the action of yacc for the given grammar?
  • a)
    It detects recursion and eliminates recursion.
  • b)
    It detects reduce-reduce conflict, and resolves.
  • c)
    It detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action.
  • d)
    It detects shift-reduce conflict, and resolves the conflict in favor of a reduce over a shift. action.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following expression grammar, The semantic rules for expr...
E→ number \ E' + E' \ E' x E'
Then YACC compiler detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action.
Consider the following configuration where shift- reduce conflict occurs
Stack Input
.... E + E x . E . . $
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Consider the following expression grammar, The semantic rules for expression calculation-are stated next to each grammar production.The above grammar and the semantic rules are fed to a yacc tool (which is an LALR(1) parser generator) for parsing and evaluating arithmetic expressions. Which one of the following is true . about the action of yacc for the given grammar?a)It detects recursion and eliminates recursion.b)It detects reduce-reduce conflict, and resolves.c)It detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action.d)It detects shift-reduce conflict, and resolves the conflict in favor of a reduce over a shift. action.Correct answer is option 'C'. Can you explain this answer?
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Consider the following expression grammar, The semantic rules for expression calculation-are stated next to each grammar production.The above grammar and the semantic rules are fed to a yacc tool (which is an LALR(1) parser generator) for parsing and evaluating arithmetic expressions. Which one of the following is true . about the action of yacc for the given grammar?a)It detects recursion and eliminates recursion.b)It detects reduce-reduce conflict, and resolves.c)It detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action.d)It detects shift-reduce conflict, and resolves the conflict in favor of a reduce over a shift. action.Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the following expression grammar, The semantic rules for expression calculation-are stated next to each grammar production.The above grammar and the semantic rules are fed to a yacc tool (which is an LALR(1) parser generator) for parsing and evaluating arithmetic expressions. Which one of the following is true . about the action of yacc for the given grammar?a)It detects recursion and eliminates recursion.b)It detects reduce-reduce conflict, and resolves.c)It detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action.d)It detects shift-reduce conflict, and resolves the conflict in favor of a reduce over a shift. action.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following expression grammar, The semantic rules for expression calculation-are stated next to each grammar production.The above grammar and the semantic rules are fed to a yacc tool (which is an LALR(1) parser generator) for parsing and evaluating arithmetic expressions. Which one of the following is true . about the action of yacc for the given grammar?a)It detects recursion and eliminates recursion.b)It detects reduce-reduce conflict, and resolves.c)It detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action.d)It detects shift-reduce conflict, and resolves the conflict in favor of a reduce over a shift. action.Correct answer is option 'C'. Can you explain this answer?.
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