sprintf %c fails in for loop

[DLee65]

The following code snippet fails with an error stating wrong data type.
cDisk is a data type CHAR.

...

    for cDisk = 'a' to 'z'
            Sprintf(strDrive, "%c", cDisk);
    endfor;

If I remove the for loop then the Sprintf works correctly.

... 
     cDisk = 'a';
     Sprintf(strDrive, "%c", cDisk);

When I inspect the value of cDisk in the for loop, it has the correct value of 97.

So what is happening with the for loop to cause this to fail?

[Alpesh]

Hi Dan,

I did some testing with Installscript and found that the counter begin and end values in the for statement need to be number only. Even though it does not give any error at compile-time, if you use char values.

The following code should solve your purpose -

function ShowVal (hMSI)
string strDrive;
number nA, nZ, nDrive;
begin

nA = 'a';
nZ = 'z';
for nDrive = nA to nZ
Sprintf(strDrive, "%c", nDrive);
endfor;

end;

[DLee65]

Thank you very much Alpesh. That does work.