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I have run into this problem (Slink64 3.10 reports access violation). If the output EXE file is named explicitly with the linker's /file:<name>.exe"option, the problem is not seen!

The distribution of runtime library routines is different between 32- and 64-bit versions of Silverfrost Fortran. For your test program, the 64-bit versions of routines WSF1@@, CH@WSF and WSF2@ are in ...

Dan, what do you have in your FTN95.CFG (in the FTN95 base directory)?

I ask because I suspect that you have /no_banner in it, or you may be using some IDE/build system that modifies the messages t ...

Dan, I agree that the error message is confusing, and that the wording could be improved for clarity.

The standard specifies (Fortran 2018, Sec.8.2) that:
R801 type-declaration-stmt is

declara ...

Thanks, Robert, the text bleed-over problem reported in this thread is not present in the revised SDBG64 (9.02 version) that you just made available.

After spending a few days exercising the new ve ...

Update on 19 May 2024:

The two test programs posted above (grist.f90 and gcgtst.f90) work correctly with FTN95 version 9.03.

Thanks to Silverfrost for enhancing the compiler to enable the ASSOCI ...

Thank you, I checked out the new version and it works.

I posted this bug report over two months ago.

RSVP!

Dan, I used 9.02 without /check or /undef.

FTN95 gives, if I am not mistaken, an incorrect warning:

WARNING S:\LANG\dan.F90 12: MOD!SPECIES is not ALLOCATABLE yet is used in an ALLOCATE ...

Dan, your program is almost working. All that you have to do is to make sure that subscript bounds are honored, or, equivalently, allocate arrays with sufficient size.

Here is a fixed-up version:
...

The following code contains a subroutine with a 1-dimensional array argument whose name is the same as that of an intrinsic function, INT.
subroutine elmhes(Nm,N,Low,Igh,A,Int)
implicit ...

The Zip file https://www.dropbox.com/scl/fi/h5dv3i9a4rr5lvz15g4fs/xfzero.zip?rlkey=ot6eqa8xfth5j7ovokdcypmyo&dl=0 contains two source files. The driver, fztest.f90, is just
program tfztest
im ...

The following is what is left after trimming a 25,000 LOC Fortran 95 program to pin down a suspected optimisation bug.

program labDObug
implicit none
integer, parameter :: nx = 5, n ...

When debugging with SDBG64, I sometimes see that when the source code pane has its width reduced using the mouse, parts of a long line of source code that are now beyond the right edge of the pane are ...

Bill, there is a way to make sure that needed initializations in one or more BLOCK DATA program are not skipped by the linker -- something that I learned from Eddie a few years ago.

In each BLOCK D ...