Using CodeView to Examine FORTRAN Arrays

ID: Q37548

The information in this article applies to:

Microsoft CodeView for MS-DOS, versions 3.0, 3.11, 3.14, 4.0, 4.01, 4.05, 4.1
Microsoft CodeView for OS/2, versions 3.0, 3.11, 3.12, 3.5
Microsoft CodeView for Windows, versions 3.0, 3.05, 3.06, 3.07, 4.0, 4.01, 4.1

SUMMARY

You can use CodeView to display a single element of a Fortran array using ?arrayname(x,x,x), where "arrayname" consists of the first six characters of the array name and "(x,x,x)" must be a valid cell in the array.

There is no way to display more than one cell of the array using this command. To display many cells, you must do a memory dump of the addresses where the array is stored or use the memory window in CodeView versions 3.0 and later.

MORE INFORMATION

FORTRAN stores array elements in column-major order. Use the following formula to determine the address where any cell (i,j,k) is stored, where Max_Row is the maximum i possible and Max_Col is the maximum j possible:


    MemAddr = start_addr+(size of elements)*
                     (Max_Row((k-1)(Max_Col)+(j-1))+(i-1))

"Size of elements" is the number of bytes of each element in the array.

CodeView 4.0, 4.01, 4.05, and 4.1 do not have a FORTRAN expression evaluator and incorrectly display the array in the locals window.

Additional query words: nofps kbinf 3.00 3.50 4.00 4.10

Keywords :
Version : :3.0,3.05,3.06,3.07,3.11,3.12,3.14,3.5,4.0,4.01,4.05,4.1
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