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[Default]

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This option enables or disables runtime type information.

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When rtti=on is specified, dynamic_cast and typeid are enabled.

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When rtti=off is specified, dynamic_cast and typeid are disabled.

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Do not define relocatable files (.obj) that were created by this option in a library, and do not output files in the relocatable format (.rel) through the optimizing linkage editor. A symbol double definition error or symbol undefined error may occur.

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rtti=on can be specified only at C++ compilation. rtti=on is ignored when lang=cpp has not been specified and the input file extension is .c or .p.