Hello,

using PB 2019 R3 2703, Windows 10 64

in my application I must make use of the LongLong datatype.

Unfortunately I noticed calculation errors on doing a integer division with this datatype.

Here is the code:

longLong x, y

x = 7129750713734852035      // LongLong-Value with 19 digits

y = x / 16                  //  y gets the value 445609419608428224, which is wrong

The same division done in Windows Calc.exe and other calulators calcuate a value of 445609419608428252

The error seems to happen with large values only

Here are examples

PB:
1) 7.129.750.713.734.852.035 / 16 = 445.609.419.608.428.224      // wrong
2) 712.975.071.373.485.203 / 16   = 44.560.941.960.842.824        // wrong
3) 71.297.507.137.348.520 / 16      = 4.456.094.196.084.282           // OK

Windows Calc.exe:
1) 7.129.750.713.734.852.035 / 16 = 445.609.419.608.428.252
29 712.975.071.373.485.203 / 16   = 44.560.941.960.842.825
3) 71.297.507.137.348.520 / 16      = 4.456.094.196.084.282

Any idea, whats going wrong?

Thank you, Martin