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Subject: [Bug fortran/53694] New: [OOP] GENERIC type-bound procs should be available without part-ref syntax
Date: Sat, 16 Jun 2012 08:45:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D53694

             Bug #: 53694
           Summary: [OOP] GENERIC type-bound procs should be available
                    without part-ref syntax
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: burnus@gcc.gnu.org


Created attachment 27629
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D27629
test.f90

If "sqrt" is a generic type-bound procedure, not only something like
  a%sqrt()  or  a%sqrt(b)   [for pass and nopass, respectively]
should work but also a simple:
  sqrt(a)   or  sqrt(a, b)

That is: The generic enter the normal generic namespace with the exception =
that
  use, only: type
also imports the generic name for that type.

See also: https://groups.google.com/forum/#!msg/comp.lang.fortran/YDt3j0--1=
Do


It is not obvious from the standard that this holds, but it is analog to
ASSIGNMENT(=3D) and OPERATOR(...) which also act that way. [Which is suppor=
ted in
gfortran.]  Additionally, the following statement (F2008,4.5.7.3 Type-bound
procedure overriding) wouldn't make sense with a different interpretation of
the standard:

"If a generic binding speci=0Ced in a type de=0Cnition has the same generic=
-spec as
an inherited binding, it extends the generic interface and shall satisfy the
requirements speci=0Ced in 12.4.3.4.5."