add a virtual dctor to BaseParser()
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@ -45,6 +45,11 @@ BaseParser::BaseParser()
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}
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BaseParser::~BaseParser()
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{
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}
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void BaseParser::clear_input_flags()
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{
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line = 0;
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@ -48,6 +48,7 @@ class BaseParser
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protected:
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BaseParser();
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virtual ~BaseParser();
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virtual void clear_input_flags();
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