Formatted output problem in Fortran

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SUMMARY

The discussion centers on a formatted output issue in Fortran, specifically regarding the placement of WRITE statements within a DO LOOP. User C. Luria initially encountered binary output when moving WRITE statements from the end of the program to the loop. The resolution involved correcting a syntax error and utilizing inline format specifiers in the WRITE statement, such as WRITE(10,(2G15.3,A4)), which successfully produced the desired formatted output.

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  • Understanding of Fortran syntax and structure
  • Familiarity with OPEN and CLOSE statements in Fortran
  • Knowledge of WRITE statement formatting in Fortran
  • Experience with DO LOOP constructs in Fortran
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This discussion is beneficial for Fortran developers, programmers working on numerical simulations, and anyone troubleshooting formatted output issues in Fortran applications.

chaimluria
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Hello,

I have correctly defined my OPEN and CLOSE statements. When all of my WRITE statements with their associated FORMAT statements are at the end of the program I get the formatted output that I need.

If I move one of the WRITE statements to the body of the program (within a particular DO LOOP) I get a binary output file.

What am I doing wrong. How can I have a WRITE statement in the body of a program and still get formatted output.

Regards,

C. Luria
 
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It would help to see some code, I've never seen something like that. However, rather than having format specifiers, you could try putting the format in the write statement, e.g.
Code: 
DO i=1,n
  WRITE(10,(2G15.3,A4)) data
END DO
 
The problem seems to have resolved itself. I must have made some sort of syntax error. Thank you minger for your reply and suggestion.
 

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