Run-Time Type Information

<compiler> (RTTI) Facilities included in C++ compilers to allow the type of an object to be determined at run time.

This facility, found in good C++ compilers and some other high level languages, adds type information to memory resident objects (i.e. type name or unique type-id).

This allows the run-time system to determine if an object is of a specific type, for example, to ensure that a cast of an object is valid.

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run-time environment
run-time error
run-time library
run-time support
run-time system
Russell, Bertrand
Russell's Attic