Mixed Kind Expression Evaluation

Mixed kind expressions:

• If all operands of an expression have the same type and kind, then the result also has this type and kind.
• If the kinds are different, then operands with lower range are promoted before operations are performed. For example, if

      INTEGER(short) :: members, attendees
      INTEGER(long)  :: salaries, costs

  the expression:

  • members + attendees is of kind short,
  • salaries - costs is of kind long,
  • members * costs is also of kind long.
• Care must be taken to ensure the LHS is able to hold numbers returned by the RHS.

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