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 Introduction to Compiler 20 Flashcards |
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What is a regular expression used for in computer science? |
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To match character combinations in strings. |
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Fill in the blank: The languages accepted by regular expressions are referred to as ______. |
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Regular languages |
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True or False: The Kleene closure of a regular language generates strings with at least one occurrence of the language. |
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False. The Kleene closure allows for zero or more occurrences. |
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Which operation on regular languages represents the combination of two languages where strings from either language are included? |
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Union |
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Riddle: I can accept strings that start with '1' and end with '0', but my heart is a sequence of zeros. What am I? |
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A regular expression for strings starting with 1 and ending with 0. |
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What is the role of the lexical analyzer in a compiler? |
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To read the source program and group it into tokens. |
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Fill in the blank: A compiler produces ______ code from high-level instructions. |
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Machine language |
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True or False: Dynamic linking occurs before program execution. |
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False. Dynamic linking occurs during runtime. |
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What data structure is used to keep track of the semantics of variables in a compiler? |
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Symbol Table |
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Which type of error occurs during the execution of a program due to invalid input data? |
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Run-time error |
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