Strange Data Type Issue

[Zeos6]

Hi,

I was trying to perform an order of magnitude calculation when I ran into the following issue:

double rawPrice = (Open[0] + High[0] + Low[0] + Close[0]) * 0.25;
int magnitude = Math.Floor(Math.Log10(Math.Abs(rawPrice)));

This will not compile even though it should.

I had to do an explicit cast to get this to compile; i.e.

double rawPrice = (Open[0] + High[0] + Low[0] + Close[0]) * 0.25;
int magnitude = (int)Math.Floor(Math.Log10(Math.Abs(rawPrice)));

Am I missing something here? Please advise. Thank you very much.

[NinjaTrader_Brett]

Hello,

I dont see an issue. This would be expected and is part of c# programming language.

Datatype that you did the math functions to was of oringal type double. Therefor no matter what calculations you do, even if the double turns into what would fit nicely in an int. It is still a double (Due to the memory assigned for the var) and the compiler will flag you with error if you attempt to assign this to an int.

Therefor to get the compile to let you compile you must put the type cast in to tell the compile you know what your doing and its ok if data loss occurs. (Even though in your case most likely no data loss if the value no longer has a decimal after it.)

Let me know if I can be of further assistance.

[Zeos6]

Hi Brett,

My apologies. Of course you are correct. This was a dumb question on my part - brain freeze. Just couldn't see it at the time. Sorry to have taken up your time.
Thank you for your reply.

[NinjaTrader_Brett]

No problem, glad to be of help.