Q32151: QB.EXE Hang After Editing "Duplicate Definition" in SHARED
Article: Q32151 Product(s): See article Version(s): 4.00 4.00b Operating System(s): MS-DOS Keyword(s): ENDUSER | buglist4.00 buglist4.00b fixlist4.50 B_BasicCom | mspl13_basic Last Modified: 8-DEC-1989 The sample program below demonstrates a problem in the QB.EXE editor after editing a variable in a SHARED statement that is the source of a "Duplicate Definition" error. Inconsistent problems can occur, such as hanging the editor or losing characters in the file after doing a Save. Microsoft has confirmed this to be a problem in QuickBASIC Versions 4.00 and 4.00b, and in the version of QuickBASIC provided with the Microsoft BASIC Compiler Versions 6.00 and 6.00b (buglist6.00, buglist6.00b) for MS-DOS and MS OS/2. This problem was corrected in QuickBASIC Version 4.50 and in the QBX.EXE of the Microsoft BASIC Compiler Version 7.00 (fixlist7.00). The following steps demonstrate the problem: 1. Run the sample program below in the QB.EXE Version 4.00 or 4.00b editor. A "Duplicate Definition" error correctly displays. 2. Delete the character "c" from "c%" in the second SHARED statement. It is now possible for the editor to hang or cause the source code to be incompletely saved when you perform a save. The following is a code example: DECLARE SUB testsub () DIM c%(2, 2) CALL testsub SUB testsub SHARED a, b, c%() SHARED x$, c%() END SUB
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