Operators on predefined types

• Operations = and /= are always defined

  • INTEGER
    • -,+,*,/,>,<,>=,<=, Float, Mod and Rem
  • REAL
    • -,+,*,/,>,<,>=,<=, Fix
  • NATURAL
    • Like INTEGER
  • CHARACTER
    • >,<,>=,<=, Chr, Num

• CHARSTRING
  • Mkstring, Length, First, Last , // (Concatenation), Substring, Extract!, Modify!
• BOOLEAN
  • True, False
  • NOT, AND, OR, XOR, =>
• TIME, DURATION
  • like REAL
• PID
  • none

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