J3/10-243
To: J3
From: Stan Whitlock
Subject: F03/0091 Array components cannot depend on length type params
Date: 2010 October 12

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NUMBER: F03/0091
TITLE:  Array components cannot depend on length type parameters
KEYWORDS: length parameter, specification expression, component
          declarations
DEFECT TYPE: Interpretation
STATUS: J3 consideration in progress

QUESTION:

Consider

  MODULE m
    TYPE t(n)
      INTEGER,LEN :: n
      REAL v(n)
    END TYPE
  END

Is the example intended to be standard-conforming?

ANSWER:

Yes, the example is standard-conforming in F2008.

C531 in section 5.3.8.2 [94:15-16] of 10-007 says:

 "C531 (R516) An explicit-shape-spec whose bounds are not constant
  expressions shall appear only in a subprogram, derived type
  definition, BLOCK construct, or interface body."

EDITS:

None

SUBMITTED BY: Van Snyder

HISTORY: 07-232    m180  F03/0091 submitted (modified by M. Cohen)
         10-xxx    m193  Draft answer for F2008