gfortran allows everywhere to use a BOZ.
However, there are constrains in Fortran 95 and 2003 on where to use them.
- Fortran 95: Only in DATA and only integer
- Fortran 2003: Only in DATA or as argument of INT, REAL, DBLE, CMPLX
Expected: An ERROR (or WARNING) is shown, when -std=f95/f2003 is used.
Fortran 95:
"R407 boz-literal-constant [...]
Constraint: A boz-literal-constant may appear only in a DATA statement.[...]
If a data-statement-constant is a boz-literal-constant, the corresponding
object shall be of type integer."
Fortran 2003:
"C410 (R411) A boz-literal-constant shall appear only as a data-stmt-constant
in a DATA statement, as the actual argument associated with the dummy argument
A of the numeric intrinsic functions DBLE, REAL or INT, or as the actual
argument associated with the X or Y dummy argument of the intrinsic function
CMPLX."
--
Summary: Warn with -std=f95/f2003 when BOZ is used at invalid
places
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=29471
