FIX: CHAR(26) to Device Causes F6422: No Space Left on Device

Last reviewed: September 11, 1997
Article ID: Q71464

3.13 3.20 3.31 3.33 4.00 4.01 4.10 5.00 5.10 MS-DOS kbtool kbfixlist kbbuglist

The information in this article applies to:

Microsoft FORTRAN for MS-DOS, versions 3.13, 3.2, 3.31, 3.33, 4.0, 4.01, 4.1, 5.0, and 5.1

SYMPTOMS

A program compiled with Microsoft FORTRAN that attempts to write CHAR(26) to a device such as the printer or screen, may have as a result one of the following problems during execution under MS-DOS:

Run-time error F6422: WRITE(device) - no space left on device
No character is output.
? error: Device full error in file(device) Error Code 1028; Status 0008; PC=11AA; 000C; SS=29BE; FP=0008; SP=1196

Compiling the same program with FORTRAN version 4.1, 5.0 or 5.1 for protected-mode execution and running under OS/2 will print the desired ASCII character (left arrow) to the device.

STATUS

Microsoft has confirmed this to be a problem in Microsoft FORTRAN versions 3.x, 4.x, and 5.x for MS-DOS. This problem was corrected in FORTRAN PowerStation.

MORE INFORMATION

The following program illustrates the problem of sending CHAR(26) to a device. The user inputs the device that CHAR(26) is to be sent to into the variable "flnm." Possible devices include the screen (CON), printer (PRN, LPT1), or communications port (COM1).

      character*5 flnm
      read(*,'(a)') flnm
      open(1,file=flnm,status='old')
      write(1,'(1x,a)') char(26)
      end

CHAR(26) is the ASCII code for the end-of-file marker or CTRL+Z (^Z). When this character is output to a device under MS-DOS, as in the program above, the character may be suppressed or the F6422 run-time error may be generated.

CHAR(26) can be sent to a file correctly, which can then be sent to the desired device. It can also be sent to a device correctly while running under OS/2.

Additional reference words: 5.00 5.10
KBCategory: kbtool kbfixlist kbbuglist
KBSubcategory: FLIss
Solution Type : kbfix

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Last reviewed: September 11, 1997
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