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Re: [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=

From: Tobias Burnus <burnus at net-b dot de>
To: Steve Kargl <sgk at troutmask dot apl dot washington dot edu>
Cc: Janus Weil <janus at gcc dot gnu dot org>, gfortran <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Sun, 13 Jun 2010 19:07:21 +0200
Subject: Re: [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=
References: <AANLkTikn4I9cdytXSQm1sX9dZNjxafrCZi9HeOKDJ4RX@mail.gmail.com> <AANLkTimEXVUqqXwnswYDNrM5g52oSZZCYyNPUFxisD9-@mail.gmail.com> <20100613165414.GA62857@troutmask.apl.washington.edu>

Steve Kargl wrote:
> A quick read through F2008 suggests that MOLD and SOURCE can
> appear in the same allocate statement.  Which source-expr
> takes precedence?
>   

No, C637 ensures that there is either a MOLD=source-expr or
SOURCE=source-expr:

"C637 (R626) At most one of source-expr and type-spec shall appear."
(F2008 FDIS of 7th June 2010).

Thus, a expr4 is not really needed - a flag to distinguish betwixt MOLD
and SOURCE would be enough.

Does the patch check for this constraint?

Tobias

Follow-Ups:
- Re: [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=
  - From: Steve Kargl
- Re: [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=
  - From: Tobias Burnus

References:
- [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=
  - From: Janus Weil
- Re: [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=
  - From: Janus Weil
- Re: [Patch, Fortran, OOP] PR 43388: [F2008] ALLOCATE with MOLD=
  - From: Steve Kargl

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