Microsoft KB Archive/106403

= FIX: DUP Operator Must Be Preceded by White Space =

Article ID: 106403

Article Last Modified on 10/13/2003

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APPLIES TO


 * Microsoft Macro Assembler 6.0 Standard Edition
 * Microsoft Macro Assembler 6.0a
 * Microsoft Macro Assembler 6.0b

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This article was previously published under Q106403



SYMPTOMS
The DUP operator must be preceded by white space. The number of items and the DUP operator must be separated by spaces or tabs. In MASM 6.0, no error message is given, but space for only one data item is allocated if the white space is missing. MASM 6.1 and later issue the error message:

error A2206: missing operator in expression



STATUS
Microsoft has confirmed this to be a problem in MASM versions 6.0x. The problem was corrected in MASM 6.1.

Sample Code
; Assemble options needed: /Fl
 * View the listing file to see the error in MASM 6.0 for data item b

.MODEL SMALL .STACK

.DATA a       db 4 dup(0) size_a  db SIZEOF a b        db 4dup(?)    ; A2206 here in MASM 6.1 size_b  db SIZEOF b

.CODE start: mov  ax,4C00H int  21H    ;Terminate Process END start

Additional query words: 6.00 6.00a 6.00b buglist6.00 buglist6.00a buglist6.00b fixlist6.10

Keywords: kbfix KB106403

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