[Bug fortran/29452] New: Do compile-time specifier checks for WRITE and READ

[tobias dot burnus at physik dot fu-berlin dot de]

http://gcc.gnu.org/ml/fortran/2006-10/msg00241.html adds compile-time checking
for the specifier arguments of CLOSE and OPEN.

This should be done analogously for
(cf. 9.5.1 in Fortran 2003)

WRITE/READ (some only in READ allowed; some sre not yet implemented in
gfortran):
- ADVANCE: 'YES', 'NO'
- ASYNCHRONOUS: 'YES', 'NO'
- BLANK: 'NULL', 'ZERO'
- DECIMAL: 'COMMA', 'POINT'
- DELIM: 'APOSTROPHE', 'QUOTE', 'NONE
- PAD: 'YES', 'NO'
- ROUND: 'UP', 'DOWN', 'ZERO', 'NEAREST', 'COMPATIBLE'. 'PROCESSOR_DEFINED'
- SIGN: PLUS, SUPPRESS, PROCESSOR_DEFINED


-- 
           Summary: Do compile-time specifier checks for WRITE and READ
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tobias dot burnus at physik dot fu-berlin dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29452