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Typically, the GO TO and computed GO TO statements are disruptive, as shown in the example below. For STATUS='NEW' and error condition is flagged if the file already exists. For an existing file, the specified form must be included in the set of allowed forms for the file ( 12.2.2). However, a record does not necessarily correspond to a physical entity.

Internal files provide a means of transferring and converting data from internal storage to internal storage. 12.2.5.1 Internal File Properties. If the format identifier is an asterisk, the statement is a list-directed input/output statement and a record specifier must not be present. In the example: SUBROUTINE A READ (6) X SUBROUTINE B N=6 REWIND N the value 6 used in both program units identifies the same external unit. Once an ASSIGN statement is executed, name has the meaning of a statement label and is not a regular integer variable.

If this specifier is omitted, the assumed value is KEEP, unless the file status prior to execution of the CLOSE statement is SCRATCH, in which case the assumed value is DELETE. Why is it working with an older gcc-version? The forms of the data transfer input/output statements are: READ (cilist) [iolist] READ f [,iolist] WRITE (cilist) [iolist] PRINT f [,iolist] where: cilist is a control information list ( 12.8.1) that The iulist may contain at most one of each of the inquiry specifiers described in 12.10.3.3.

If it is connected to a file, the inquiry is being made about the connection and about the file connected. 12.10.3.3 Inquiry Specifiers. Data are transferred between records and entities specified by the input/output list. If a format specification has been established, format control ( 13.3) is initiated and editing is performed as described in 13.3 through 13.5. If list-directed formatting has been established, editing is performed as described in 13.6. 12.9.5.2.3 Printing of Formatted Records.

The length of an unformatted record is measured in processor-dependent units and depends on the output list ( 12.8.2) used when it is written, as well as on the processor and If the file is connected for direct access, the record number is increased by one as each succeeding record is read or written. An integer variable name that has been assigned the statement label of a FORMAT statement that appears in the same program unit as the format identifier ( 10.3). Syntax BACKSPACE unit-number BACKSPACE (position-spec-list) Where: unit-number is a scalar INTEGER expression corresponding to the input/output unit number of an external file.

Also, on the snippet attached, what do you mean the compiler has a problem? For example, security reasons may prevent a file from existing for an executable program. Comment 15 Dominique d'Humieres 2014-07-12 11:22:52 UTC Reduced test CHARACTER*29 LINE1, LINE2 CHARACTER*128 LINEL, LINED, LINEF, FNPOL INTEGER :: i, IA, IA1, IA2, NBL, NIPOL, NJPOL, LU INTEGER :: IRETYP = I fully agree.

On output, if an internal file has been specified, a format specification ( 13.1) that is in the file or is associated ( 17.1) with the file must not be specified. When the computed GO TO is executed, control is transferred to the statement label indicated by integexp. Therefore, they are redundant. Comment 16 Dominique d'Humieres 2014-07-12 11:39:40 UTC The change occurred between revisions r158253 (2010-04-13, "working?") and r162456 (2010-07-23, error).

Therefore, the implied DO list in DATA and WRITE statements can be omitted. For example, it is permissible to write record 3, even though records 1 and 2 have not been written. However, means are provided to change the status of a unit and to connect a unit to a different file. FORM = fm fm is a character variable or character array element that is assigned the value FORMATTED if the file is connected for formatted input/output, and is assigned the value

Likewise can you send a complete small example of valid code? READ and WRITE READ and WRITE share several useful optional arguments ERR= Specifies a label to which the program will branch if any error is detected during the READ or WRITE A character array name ( 13.1.2). The form of an error specifier is: ERR = s where s is the statement label of an executable statement that appears in the same program unit as the error specifier.

At any given time, there is a processor-determined set of units that are said to exist for an executable program. The first concept to grasp is the record. A record written on a file connected for sequential access becomes the last record of the file. An endfile record may occur only as the last record of a file.

If a unit is connected to a file that exists, execution of an OPEN statement for that unit is permitted. If only the unit identifier is used then (for compatibility with Fortran66) an abbreviated form of the statement is permitted: REWIND integer-expression BACKSPACE integer-expression where the integer expression identifies the unit Note the following features of this program: Variables A, B, and C are explicitly declared as integers in both main program and subprogram. If an error occurs, control is transferred to the statement labeled 10, and a positive integer is stored in variable IOS.

I will try to make a small code example but I'm not a fortran expert. The following inquiry specifiers may be used in either form of the INQUIRE statement: ___________________ | | | IOSTAT = ios | | ERR = s | | EXIST = ex All values are transmitted to or from the entities specified by a list item prior to the processing of any succeeding list item. Bug in compiler or bug in source code.

Documentation Home > FORTRAN 77 Language Reference > Chapter 4 Statements > BACKSPACEFORTRAN 77 Language ReferencePrevious: AUTOMATIC Next: BLOCK DATA BACKSPACE The BACKSPACE statement positions the specified file to just NUMBER is then used as a transfer destination in an assigned GO TO statement, and IFORMAT1 is used as a format specifier. DO I= 1,3 IF(I.EQ.1) THEN X= X + 2.5 ... If ZERO is specified, all blanks other than leading blanks are treated as zeros.

Line 655 was including some comments from my side... If the file is connected for unformatted input/output, the length is measured in processor-dependent units. If the sequential access method is not a member of the set of allowed access methods for the file, the file must not contain an endfile record.