what is sy-fdpos?? when can we use it in program??
how does it help??
When you are using string operations like CS or CA or COetc then you need to check if letters in other variable are present in first variable or not and if present position of that point is given by sy-fdpos.
L1 = 'ABC?DGHI'
L2 = ' ? '
NOW if you check L1 CS L2 then
sy-fdpos will return as 4 bcoz ? is at fourth position.
Reward if useful.