NormalizeDouble bug?

[Bogdan Alin Baltatu]

Hi,

I use NormalizeDouble function and sometimes don't work. I put a print screen below from my code in debug mode.

This is an bug?

 

 

 

[William Roeder]

dudufx: I use NormalizeDouble function and sometimes don't work. I put a print screen below from my code in debug mode.

This is an bug?

1. No it's not a bug, it's your not understanding floating point and that some numbers can't be represented exactly. (like 1/10.) Double-precision floating-point format - Wikipedia, the free encyclopedia
2. The == operand. - MQL4 forum
   
3. Do NOT use NormalizeDouble, EVER. For ANY Reason. It's a kludge, don't use it. It's use is always wrong
   • SL/TP are market orders when triggered, they don't need to be normalized, only abide by the limits Requirements and Limitations in Making Trades - Appendixes - MQL4 Tutorial and that requires understanding floating point equality Can price != price ? - MQL4 forum
   • Only the open price for pending orders need to be adjusted. On Currencies, Point == TickSize, so you will get the same answer, but it won't work on Metals. So do it right: Trailing Bar Entry EA - MQL4 forum or Bid/Ask: (No Need) to use NormalizeDouble in OrderSend - MQL4 forum
   • Lot size must also be adjusted to a multiple of LotStep. If that is not a power of 1/10 then NormalizeDouble is wrong. Do it right.