Microsoft KB Archive/221747

= FIX: C0000005 Fatal Error Passing FGETS a String > 256 chars =

Article ID: 221747

Article Last Modified on 5/12/2003

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APPLIES TO


 * Microsoft Visual FoxPro 3.0 Standard Edition
 * Microsoft Visual FoxPro 3.0b Standard Edition
 * Microsoft Visual FoxPro 5.0 Standard Edition
 * Microsoft Visual FoxPro 5.0a
 * Microsoft Visual FoxPro 6.0 Professional Edition

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This article was previously published under Q221747



SYMPTOMS
Using the FOPEN function to open a file in Unbuffered mode with Read-Only(10) or Read-Write(12) privileges, and then using the FGETS function to get a line that has more than 256 characters causes Visual FoxPro to generate the following error message:

C0000005 Fatal Error

This can also happen with the FREAD function.



STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

This bug was corrected in Visual Studio 6.0 Service Pack 3. For more information about Visual Studio service packs, please see the following articles in the Microsoft Knowledge Base:

194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed



Steps to Reproduce Behavior
 Create a new program file in Visual FoxPro 6.0.  Cut and paste the following code into the program file. Note that the StrToFile function is not available in versions prior to 6.0: LOCAL lnFile

StrToFile(Replicate('0', 300), 'Demo12.dat')

lnFile = FOpen('Demo12.dat', 10) FGets(lnFile, 300) FClose(lnFile)  Save and run the program.

Visual FoxPro will cause a C0000005 Fatal Error and terminate.

In Visual FoxPro with Visual Studio 6.0 SP3, attempting FGETS on a line that has more than 8192 characters generates a "Function argument value, type, or count is invalid" error.

Keywords: kbbug kbfix kbxbase kboop kbvs600sp1fix kbctrl kbvs600sp2fix kbvs600sp3fix KB221747

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