Undefined function or method ... int64

Dear,

I am trying to run a MATLAB code and I am getting the following Error:

??? Undefined function or method 'minus' for input arguments of type 'int64'.
Error in ==> ReadGnssLogger>CheckGnssClock at 391
gnssRaw.allRxMillis = int64((gnssRaw.TimeNanos - gnssRaw.FullBiasNanos)*1e-6);

any suggestions?

Many thanks

Answer 1

[Walter Roberson]

Subtraction was not defined for int64 until MATLAB 7 (R14) in 2004. Subtraction for int64 was not available in R13* (2002 to 2003 time frame) even though int64 was permitted back then.

[Jalal AlAzizi]

Thank you Walter Roberson. I am using matlab v 7.6 (R2008a) Is there any other alternative solution to let the code run and get same results?

[Walter Roberson]

You would need to write a mex routine to do the subtraction. When you do that, remember to pay attention to overflow and underflow, which will normally "wrap" when you are working with C, but MATLAB defines them through saturation instead.

[Walter Roberson]

R2010b was the first release that supported arithmetic on int64 values.