DOCUMENT:Q104859 24-MAR-2000 [fortran] TITLE :FIX: $STORAGE:2 or /4I2 Generates Incorrect Code PRODUCT :Microsoft Fortran Compiler PROD/VER::1.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft FORTRAN PowerStation for MS-DOS, version 1.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Using the undocumented compiler option /4I2 or the equivalent undocumented metacommand $STORAGE:2 will: - Miscalculate integer array sizes for DATA statements - Interpret explicitly declared INTEGER*4 variables as INTEGER*2 RESOLUTION ========== The compiler option /4I2 and the metacommand $STORAGE:2 are not intended to be used with this compiler. They are not documented for the same reason. However, any erroneous behavior may be avoided by replacing every instance of "integer " with "integer*2 " and declaring implicit integer*2 (i-n) at the very beginning of each subroutine. It is necessary to replace every instance of "integer " with "integer*2 " because explicit integer declarations are treated as integer*4. STATUS ====== Microsoft has confirmed this to be a problem in FORTRAN PowerStation for MS-DOS version 1.0. This problem has been resolved with FORTRAN PowerStation maintenance release version 1.0a for MS-DOS. MORE INFORMATION ================ Sample Code 1 ------------- C Compile options needed: none (or comment out line 1 and use: /4I2) $storage:2 integer iunit(3) data iunit/100,10,1/ print*, iunit end C This will generate the following error: C F2408: IUNIT : DATA : too few constants to initialize item Sample Code 2 ------------- C Compile options needed: none (or comment out line 1 and use: /4I2) $storage:2 integer*4 i,j j = 30000 i = j*j print*, i,j end C When run, this will give the following wrong result: C -5888 30000 C instead of the following correct result: C 900000000 30000 FORTRAN PowerStation version 1.0 can be differentiated from the maintenance release version 1.0a by invoking the linker. Typing "link32 | more" (without the quotation marks) from \F32\BIN directory will show version 2.8 for FORTRAN PowerStation version 1.0, and it will show version 1.0f for the maintenance release version 1.0a. Additional query words: 1.00 buglist1.00 fixlist1.00a ====================================================================== Keywords : Technology : kbAudDeveloper kbFortranSearch kbZNotKeyword3 kbFORTRANPower100DOS Version : :1.0 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.