topic UNIX to PC in Software Archive

UNIX to PC

pweic — Sun, 04 Feb 2001 23:23:50 GMT

I am currently working on my final year project related to fortran 77.

I encounter some binary (sequential) files created by Fortran 77 in UNIX system, I try to read the file using my Compaq Visual Fortran 6.1A in PC but there are always error while reading the file.

As I do not have access to UNIX system, is there any way for me to convert the file to a text file in pc or read it using fortran 77 in pc?

Thank you for your help

Re: UNIX to PC

pweic — Mon, 05 Feb 2001 00:14:50 GMT

Ops, I think I made some mistake.

What I really mean is how to convert a fortran 77 binary file created in UNIX system to a text file or Fortran 77 binary file for Window 98.

Re: UNIX to PC

Steven_L_Intel1 — Mon, 05 Feb 2001 04:38:39 GMT

Which UNIX system? Which Fortran 77 on UNIX? Most UNIX Fortran compilers create unformatted files in a method that is compatible with that used by Visual Fortran, but if the UNIX system is "big-endian" (Sun, IBM, HP, SGI), you'll need to open the file with CONVERT='BIG_ENDIAN' to do the length and data conversion.

Steve

Re: UNIX to PC

pweic — Mon, 05 Feb 2001 11:00:32 GMT

Thanks Steve, in fact I'm not 100% sure this is the source of the problem. The following is the error I get:

cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

forrtl: severe <257>: formatted I/O to unit open for unformatted transfers, unit 20, file d:@fypTPXO.5h_TPXO.T.1.ot
Image pc routine line source
program1.exe 00409b79 unknown unknown unknown
...
...
kernel32.dll bff7b9e4 unknown unknown unknown
kernel32.dll bff7b896 unknown unknown unknown
kernel32.dll bff7a24f unknown unknown unknown

Stack trace terminated abnormally

Incrementally linked image--PC correlation disabled.

cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

I tried to use "form=formatted" to open the file, there was no error but I could only saw those binary symbols.

Re: UNIX to PC

Steven_L_Intel1 — Mon, 05 Feb 2001 11:23:41 GMT

This has nothing to do with the file. Your Fortran code is doing formatted I/O to the unit, but you want unformatted. Remove the format specifier.

Steve

Re: UNIX to PC

pweic — Mon, 05 Feb 2001 21:26:25 GMT

Thanks Steve. I got it now, that's quite stupid i think.

So when will I know that the unformatted sequential file can't be open by CONVERT='NATIVE' ? Cos I keep getting forrtl <22> now, but even if I set the recl = a very big number like 60000000, i still get the error.

Re: UNIX to PC

Steven_L_Intel1 — Tue, 06 Feb 2001 01:23:09 GMT

You have to know what system wrote the file and whether it is compatible with PCs and CVF. I don't know of any automatic way to find out.

Steve