Constants of Selected Integer Kind

• Constants of a selected kind are denoted by appending underscore followed by the kind number or an integer constant name (better):

      100_2, 1238_4, 54321_long

• Be very careful not to type a minus sign `-' instead of an underscore `_'!
• There are other pitfalls too, the constant

      1000_short

  may not be valid as KIND = short may not be able to represent numbers greater than 100. Be very careful.

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