9. Temporary files are not supported by Delphi using traditional Pascal I/O: - executingExecuting Reset() or Rewrite() results in an error, where under Standard Pascal it opens a temporary file that exists for the duration of the program before being automatically deleted.
10. Notwithstanding the fact Delphi still allows using much of the traditional Pascal RTL, Delphi-specific library functionality is generally implemented in ordinary Delphi code that uses, rather than adds to, compiler-provided intrinsics. This philosophy contrasts to Standard Pascal, whose RTL must be provided by the compiler. For example, in Standard Pascal, the 'file' type is an intrinsic type - sorttype—sort of like a record, but another compiler-defined type alongside records. In contrast, the TFileStream class in Delphi is an ordinary Delphi class written in ordinary Delphi code. Similarly, the Read, ReadLn, Write and WriteLn standard procedures have signatures that are not themselves legal Pascal signatures. While Delphi still implements them, only very rarely do Delphi-specific RTL routines require similarly special handling: rather, the language was evolved to include features such as 'open arrays', [[default parameter]]s and procedural overloading that can be used by user-written routines too.
