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I/o Error On C_file Fortran

Top Back to original post Leave a Comment Please sign in to add a comment. An unformatted file contain sequences of compiler/machine dependent representations of data values, and is not suitable for viewing. Open the file for formatted I/O; do unformatted I/O on this file. 903 UNFORMATTED I/O ATTEMPTED ON FORMATTED FILE Unformatted I/O was attempted on a file opened for formatted I/O. Specify the number of decimal places for the field. 971 FORMAT ERROR: UNBALANCED PARENTHESES More right parentheses than left parentheses were found. check over here

The name of a logical variable or array element within the same program unit. Use the standard READ and WRITE statements in their place. Project Euler #10 in C++ (sum of all primes below two million) What are two consecutive primes whose difference is 666? Avoid list-directed internal writes.

Match READ or WRITE with internal file size. 975 ILLEGAL NEW FILE NUMBER REQUESTED IN FSET FUNCTION The file number requested to be set was not a legal file system file number. UNFORMATTED The variable returns 'YES' if the file can be connected for unformatted I/O, 'NO' if it can't, and 'UNKNOWN' if the system can't tell. Top jimdempseyatthecove Wed, 10/27/2010 - 21:21 One other thing to look at is: Does your I/O statement(s) within the parallel region(s) attept to transfer outside the parallel region (on error, eof, ...)? Check the value given.

Unformatted Internal Not allowed. Direct I/O Some programs may need to access records in a data file in a non-sequential manner. It returns -1 for the unit number of an unopened file. wrf.exe can run with omp_num_threads=1, but get same error when omp_num_threads>1.

This breaks the association between the file and its unit number. Example INTEGER NMAX PARAMETER(NMAX=10) REAL TEMPC(NMAX) WRITE(*,*)'Enter ',NMAX,' temperatures in Celsius' READ(*,*)(TEMPC(I),I=1,NMAX) WRITE(*,100)(TEMPC(I),I=1,NMAX) 100 FORMAT(' ',5F8.2) STOP 'End of program' END After printing out a message telling the user to input NMAX values, the program uses an impliedDOloop to read those values into the array TEMPC. Unformatted files may contain text, as it is just character data, but some file-viewing programs don't "like" unformatted files, because they may contain control bytes that can't be interpreted as printable characters. A LABEL designates a FORMAT statement which specifies the format to use.

For allocatable arrays, the user explicitly requests space using the ALLOCATE statement. The value is undefined if there is no connection. Internal Files The files discussed above are all external files. Only record number 3 contains valid data.

Possible causes: bad syntax, subscript/substring component out-of-bounds, wrong number of subscripts, substring on non-CHARACTER variable. unit number The "OPEN" command opens the named file and assigns the unit number. Use record numbers greater than zero. 942 ERROR IN LIST-DIRECTED READ - CHARACTER DATA READ FOR ASSIGNMENT TO NONCHARACTER VARIABLE A character string was read for a numerical or logical variable. Check for a logic error in or near the given statement number. 953 NO REPEATABLE EDIT DESCRIPTOR IN FORMAT STRING No format descriptor was found to match I/O list items.

If the unit number is listed first and UNIT= is omitted, then the FMT= part of the keyword value pair may also be omitted provided it is listed second. check my blog EXIST The variable is set to .TRUE. Check input data for syntax errors. Note that if the user enters the (system-dependent) end-of-file character during the READ statement, control will transfer to a statement labelled 999.

It's difficult to arrange that these first records can be viewed by all file-viewing programs, without displaying "garbage", or causing undesirable effects to the terminal. Printing Files You get a print file by using the nonstandard FORM='PRINT' in OPEN. @ OPEN ( ..., FORM='PRINT', ... ) This specifier works for sequential access files only. Typically, you jump to a section of your program that will notify you, the user, that an error has occurred. http://orgias.org/i-o-error/i-o-error-38reached-the-end-of-the-file.html If an error occurs during the READ statement, control will be transferred to the statement labelled 900 (which is a STOP statement in this case.) If the end of the file is reached before 300 values are read in, then control will be transferred to the statement labelled 20 which writes a message to the standard output device and the program continues from there.

Any small positive integer expression. Check to ensure that every array listed in the DEALLOCATE statement has been allocated with an ALLOCATE statement. READ the appropriate record before performing this operation. 1115 CAN'T CREATE ISAM LOCK FILE The lock file cannot be created.

Correct the specifier beginning with "T". 966 FORMAT ERROR: INVALID BLANK SPECIFIER A specifier beginning with "B" did not have "N" or "Z" as the next character.

If you want to ignore 4 lines and then read 5th line . . . How should I deal with a difficult group and a DM that doesn't help? the other methods ===================================================== Advantages | Disadvantages ----------------------------------|------------------------------------- Flexible input - values don't | Slower than unformatted have to be at fixed offsets | from the record beginning | ----------------------------------|------------------------------------- Simplicity - gives nice results | Larger files than in unformatted with minimal effort | ----------------------------------|------------------------------------- Accepts repeat-counts and null | Some precision is lost on values (leave corresponding | internal/ASCII conversions variable unchanged) | ----------------------------------|------------------------------------- Accepts two types of value- | Character input requires delimiters: COMMA and SPACE | apostrophe delimiting ----------------------------------|------------------------------------- Portable output | Internal files not allowed | ----------------------------------|------------------------------------- Record spanning - reading/writing | Direct files not allowed automatically advances to next | record if needed, no exceptions | are generated | ----------------------------------|------------------------------------- Overflowing and underflowing I/O transfers ========================================== SEQUENTIAL ACCESS METHOD -------------------|------------------------|------------------------- | Record length smaller | Record length larger | than I/O list size | than I/O list size | [and format size] | [and format size] ===================|========================|========================= List-directed | Automatically starts | input | a new record | -------------------|------------------------|------------------------- List-directed | Automatically starts | output | a new record | ===================|========================|========================= Formatted input | Not allowed | | | -------------------|------------------------|------------------------- Formatted output | Not allowed | Padding with blanks | | (SPACE characters) ===================|========================|========================= Unformatted input | Not allowed | Ignores rest of record | | -------------------|------------------------|------------------------- Unformatted output | | | | ===================|========================|========================= DIRECT ACCESS METHOD -------------------|------------------------|------------------------- | Record length smaller | Record length larger | than I/O list size | than I/O list size | [and format size] | [and format size] ===================|========================|========================= List-directed | Not allowed | Not allowed input | | -------------------|------------------------|------------------------- List-directed | Not allowed | Not allowed output | | ===================|========================|========================= Formatted input | | | | -------------------|------------------------|------------------------- Formatted output | Not allowed | Padding with blanks | | (SPACE characters) ===================|========================|========================= Unformatted | | input | | -------------------|------------------------|------------------------- Unformatted | Not allowed | Rest of record output | | contains garbage ===================|========================|========================= An example program: PROGRAM READFL C ------------------------------------------------------------------ INTEGER * I, SMALL(5), BIG(15) C ------------------------------------------------------------------ OPEN( UNIT = 10, * FILE = 'tmp.inp', * ACCESS = 'SEQUENTIAL', * STATUS = 'OLD', * FORM = 'FORMATTED') C ------------------------------------------------------------------ WRITE (*,*) WRITE (*,'(6X,A)') ' Reading less than a record (Formatted): ' WRITE (*,'(6X,A)') ' ======================================= ' C ------------------------------------------------------------------ DO I = 1, 3 READ(UNIT=10, FMT='(5I4)') SMALL WRITE(UNIT=*, FMT='(6X,5I4)') SMALL ENDDO C ------------------------------------------------------------------ WRITE (*,*) WRITE (*,'(6X,A)') ' Reading less than a record (List-directed): ' WRITE (*,'(6X,A)') ' =========================================== ' REWIND(UNIT=10) C ------------------------------------------------------------------ DO I = 1, 3 READ(UNIT=10, FMT=*) SMALL WRITE(UNIT=*, FMT='(6X,5I4)') SMALL ENDDO C ------------------------------------------------------------------ WRITE (*,*) WRITE (*,'(6X,A)') ' Reading more than a record (Formatted): ' WRITE (*,'(6X,A)') ' ======================================= ' REWIND(UNIT=10) C ------------------------------------------------------------------ DO I = 1, 3 READ(UNIT=10, FMT='(15I4)') BIG WRITE(UNIT=*, FMT='(6X,15I4)') BIG ENDDO C ------------------------------------------------------------------ WRITE (*,*) WRITE (*,'(6X,A)') ' Reading more than a record (List-directed): ' WRITE (*,'(6X,A)') ' =========================================== ' REWIND(UNIT=10) C ------------------------------------------------------------------ DO I = 1, 3 READ(UNIT=10, FMT=*) BIG WRITE(UNIT=*, FMT='(6X,15I4)') BIG ENDDO C ------------------------------------------------------------------ END The input file for this example is: 11, 12, 13, 14, 15, 16, 17, 18, 19 21, 22, 23, 24, 25, 26, 27, 28, 29 31, 32, 33, 34, 35, 36, 37, 38, 39 41, 42, 43, 44, 45, 46, 47, 48, 49 51, 52, 53, 54, 55, 56, 57, 58, 59 61, 62, 63, 64, 65, 66, 67, 68, 69 71, 72, 73, 74, 75, 76, 77, 78, 79 81, 82, 83, 84, 85, 86, 87, 88, 89 91, 92, 93, 94, 95, 96, 97, 98, 99 A possible output of the example program: Reading less than a record (Formatted): ======================================= 11 12 13 14 15 21 22 23 24 25 31 32 33 34 35 Reading less than a record (List-directed): =========================================== 11 12 13 14 15 21 22 23 24 25 31 32 33 34 35 Reading more than a record (Formatted): ======================================= 11 12 13 14 15 16 17 18 19 0 0 0 0 0 0 21 22 23 24 25 26 27 28 29 0 0 0 0 0 0 31 32 33 34 35 36 37 38 39 0 0 0 0 0 0 Reading more than a record (List-directed): =========================================== 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 31 32 33 34 35 36 37 38 39 41 42 43 44 45 46 51 52 53 54 55 56 57 58 59 61 62 63 64 65 66 Mixing "formatted" and "unformatted" I/O ---------------------------------------- Formally these are incompatible I/O processing methods, and should never be mixed in the same file, however it is useful to include a textual header at the beginning of an unformatted file, and there is a simple workaround technique to do it. Otherwise, it will be a non-zero value whose meaning is dependent on the operating system.

REWIND Statement It is possible to re-read a sequential input file from the first record by using the REWIND command. INTEGER FUNCTION IFREE(IFIRST,ILAST) INTEGER IFIRST,ILAST,IUNIT LOGICAL ISOPEN DO 10, IUNIT=IFIRST,ILAST INQUIRE(UNIT=IUNIT, OPENED=ISOPEN) IF (.NOT.ISOPEN) THEN IFREE = IUNIT RETURN END IF 10 CONTINUE IFREE = -1 END Unformatted I/O When reading or writing very large data sets, it is often more efficient to store the data in the host machine's native binary format rather than in human-readable format. Not allowed. have a peek at these guys every WRITE statement starts a new record, and every READ statement starts reading at the beginning of the next record, even if the preceding READ didn't 'exhausted' the preceding record.

END If a READ statement attempts to input a record beyond the end of the file, an end-of-file condition will be triggered and the program will jump to the statement with the specified label. READ(YourInUnit, 100, err=999, end=888) arglist 100 FORMAT(...) ... No closing right parenthesis. With the above example, suppose your program opened unit 7, as follows: OPEN( UNIT=07, FORM='FORMATTED' ) The FORTRAN runtime system looks in the environment for the FORT07 file, and connects it to unit 7.

Delete unnecessary files. 1132 ISAM RECORD TOO LONG The ISAM record is too long. 1134 NO MORE LOCKS FOR ISAM No more locks exist for ISAM. 1150 ISAM DEMO LIMITS HAVE BEEN EXCEEDED ISAM demo limits have been exceeded. ACCC Systems Staff 2-9 FORMATTED / LIST-DIRECTED / UNFORMATTED I/O ************************************************ A small glossary ---------------- I/O STATEMENT WRITE (UNIT=10, FMT='(1X,A,I6)', END=999) ' i= ', i CONTROL LIST (UNIT=10, FMT='(1X,A,I6)', END=999) SPECIFIERS: FORMAT FMT='(1X,A,I6)', FMT=* RECORD REC=nrecord (Only for files opened DIRECT) ERROR ERR=999 END-OF-FILE END=999 (Not for files opened DIRECT) I/O STATUS IOSTAT=intvar (Values are implementation-dependant) I/O LIST ' i= ', i (should be compatible with the format) Formatted vs. Linked 2 Close multiple files Related 2Fortran severe (40) Error… Help?1Fortran runtime error: Text file busy0Minimizing IOPS with Fortran1dispose syntax error when using fortran open statement0Fortran runtime error “bad integer for item 11 in list input”2Python reading unformatted direct access Fortran 90 gives incorrect output1How can one count randomly white-spaced delimited values from a file in Fortran?-1Fortran error: “Cannot read from a file opened for WRITE”2Syntastic Error with Fortran Module1Reading many files in Fortran subroutine Hot Network Questions Is foreign stock considered more risky than local stock and why?