| Title: | Digital Fortran |
| Notice: | Read notes 1.* for important information |
| Moderator: | QUARK::LIONEL |
| Created: | Thu Jun 01 1995 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 1333 |
| Total number of notes: | 6734 |
Minor difference between the VAX/VMS Fortran compiler and the
Alpha {VMS/Unix} Fortran compiler:
real PIO2
parameter ( PIO2=ATAN2(1.0,0.0) )
is accepted by the Alpha compiler(s), but not the VAX.
The help file for the Alpha VMS compiler does not list ATAN2
as acceptable in constant expressions for parameters.
There are probably other functions that the Alpha compiler accepts also.
-- John Faricelli
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1242.1 | DF77 help could be improved | TLE::WHITLOCK | Stan Whitlock | Wed Mar 26 1997 16:39 | 13 |
>> The help file for the Alpha VMS compiler does not list ATAN2
>> as acceptable in constant expressions for parameters.
>> There are probably other functions that the Alpha compiler accepts also.
It appears that the DF77 help file lists only the intrinsics that the F77
standard allows in conpile-time constant expressions. So does the DF77 LRM.
DF90 does a better job of lists the categories of intrinsics allowed but doesn't
give the definitive list {just like the F90 standard doesn't}.
I'll look into expanding the list in the DF77 help file.
/Stan
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