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  Topic: List Select (%ls) - How to get the selection
mecej4

Replies: 19
Views: 283

PostForum: ClearWin+   Posted: Sat Mar 09, 2019 4:58 pm   Subject:
Bill's post of March 4 reminds me of the "Cray Pointers" feature, which is an extension provided by several vendors of Fortran 77. See, for example, http://www.icl.utk.edu/~mucci/MPPopt/addi ...
  Topic: Numerical difference Silverfrost v8 vs Salford 2.54
mecej4

Replies: 22
Views: 463

PostForum: Support   Posted: Tue Mar 05, 2019 3:30 am   Subject:
The expected precision of 32-bit reals is seven significant decimal digits. You are taking the difference between two floating point numbers that differ only in their eighth digits; that difference in ...
  Topic: Numerical difference Silverfrost v8 vs Salford 2.54
mecej4

Replies: 22
Views: 463

PostForum: Support   Posted: Mon Mar 04, 2019 2:01 pm   Subject: Re:
Is there a standard fortran statement that will declare all reals as kind=2 (double precision) ?
First of all, note that kind numbers are NON-PORTABLE.

For real variables, the default kind number ...
  Topic: Error in NINT(), 32-bit FTN95
mecej4

Replies: 7
Views: 247

PostForum: Support   Posted: Sat Mar 02, 2019 3:00 am   Subject:
IDNINT is the specific name for the generic NINT when the argument is double precision. Either name produces the same inline code when FTN95 is used to compile for X87.

The argument, if an express ...
  Topic: Access violation during list directed input with repeat coun
mecej4

Replies: 5
Views: 170

PostForum: 64-bit   Posted: Fri Mar 01, 2019 9:47 pm   Subject: Access violation during list directed input with repeat coun
The program
program repcnt
implicit none
logical :: b1,b2,b3,b4,b5,b6
character(len=9) :: line = ' 4*T 2*F '
!
read(line,*)b1,b2,b3,b4,b5,b6
print '(1x,6L3& ...
  Topic: Numerical difference Silverfrost v8 vs Salford 2.54
mecej4

Replies: 22
Views: 463

PostForum: Support   Posted: Fri Mar 01, 2019 3:23 am   Subject: Re:
Optimisation should only touch the efficiency of execution not accuracy of the results surely.
Only if exact arithmetic is used (i.e., integer, character and boolean variables) and no integer overfl ...
  Topic: Numerical difference Silverfrost v8 vs Salford 2.54
mecej4

Replies: 22
Views: 463

PostForum: Support   Posted: Thu Feb 28, 2019 1:37 pm   Subject:
I noticed the name "HST2D" in your post. It so happens that I worked with the successor USGS code HST3D 2.2.16 in 2016. I found several bugs (at least 15 of them) in the source code, using F ...
  Topic: Error in NINT(), 32-bit FTN95
mecej4

Replies: 7
Views: 247

PostForum: Support   Posted: Thu Feb 28, 2019 12:53 pm   Subject:
Thanks for your comments, John.

I agree that we are working with a corner case. However, these findings struck me as strange:

(i) X87 arithmetic (as used by programs compiled with FTN77, FTN95- ...
  Topic: Error in NINT(), 32-bit FTN95
mecej4

Replies: 7
Views: 247

PostForum: Support   Posted: Wed Feb 27, 2019 3:33 pm   Subject: Error in NINT(), 32-bit FTN95
FTN95 (32-bit, many versions up to 8.3) was giving me a result off by 1.0 when evaluating NINT(double precision expression). The numbers are such that each term in the expression, as well as the sum o ...
  Topic: Would like to run legacy version of compiler.
mecej4

Replies: 5
Views: 203

PostForum: Support   Posted: Wed Feb 06, 2019 10:53 am   Subject:
And if you can't find an old Windows 95 machine or VM, you can do the installation of a 32-bit package that uses a 16-bit installer on a Linux PC with Wine installed. Once the installation is done, co ...
  Topic: How to count function "CALL" ?
mecej4

Replies: 7
Views: 369

PostForum: General   Posted: Sat Jan 26, 2019 1:47 am   Subject:
In many cases, it is not necessary to hook a profiler to a library function entry point to count the number of function calls, especially if all the calls occur in source code that you have and can ch ...
  Topic: Enigma
mecej4

Replies: 6
Views: 352

PostForum: General   Posted: Fri Jan 25, 2019 6:14 pm   Subject:
Eddie, before working on an EINS catalogue, you will probably need to have an Enigma machine (from eBay?) or an Enigma simulator, just to test out some ideas.

If you relax the requirement from &qu ...
  Topic: Cyrillic characters
mecej4

Replies: 6
Views: 295

PostForum: Support   Posted: Fri Jan 25, 2019 5:34 pm   Subject:
Paul's work-around succeeds if the Fortran source file is saved as UTF-8 without BOM (byte order mark).

I tried with UTF-8 + BOM and with UTF-16 LE, and the compiler rejected these versions.

Si ...
  Topic: SLINK64 and HHCTRL.OCX
mecej4

Replies: 9
Views: 441

PostForum: 64-bit   Posted: Wed Jan 23, 2019 9:47 am   Subject: Re:
well that worked. I didn't try that (from earlier posts) because I saw I didn't have the c:\windows\sysnative folder and so I didn't bother trying it.

Out of curiosity, what does it stand for?
Th ...
  Topic: Cyrillic characters
mecej4

Replies: 6
Views: 295

PostForum: Support   Posted: Wed Jan 23, 2019 2:01 am   Subject:
Fortran compilers lag behind C compilers in regard to their support for multi-byte and Unicode characters. Without such support (i.e., character types with more than just one KIND), what you can do in ...
 
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