Hi Liu,
Just a little piece of information (probably you are already aware of).
while using function module FTR_CORR_SWIFT_DELETE_ENDZERO, please note that the "Fixed Point Arithmetic" checkbox is ticked in program attributes.
Result for value i_test = '23.1200' with this check ticked
Result without this check ticked: -
Please do 'F1' for more details of use of this particular check box and feel free to revert if any concerns.
Cheers,
Shreya