Is this a bug in MT5 - Strange behavior with a double input

[STANTON ROUX]

Hi There

One of my clients recently reported this to me. Seems to be a very strange bug in the MT5 system.

It only does this when 0.07 is used.

Anyone else experience this.

[William Roeder]

1. How To Ask Questions The Smart Way. 2004
             Don't rush to claim that you have found a bug.
   Questions Not To Ask
             My program doesn't work. I think system facility X is broken.

2. Floating-point has infinite number of decimals, 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

   See also The == operand. - MQL4 programming forum

   Print out your values to the precision you want with DoubleToString - Conversion Functions - MQL4 Reference.

   If you want to see the correct number of digits, convert it to a string with the correct/wanted accuracy.
             question about decima of marketinfo() - MQL4 programming forum 2016.05.18

[STANTON ROUX]

William Roeder:

1. How To Ask Questions The Smart Way. 2004
             Don't rush to claim that you have found a bug.
   Questions Not To Ask
             My program doesn't work. I think system facility X is broken.

2. Floating-point has infinite number of decimals, 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

   See also The == operand. - MQL4 programming forum

   Print out your values to the precision you want with DoubleToString - Conversion Functions - MQL4 Reference.

   If you want to see the correct number of digits, convert it to a string with the correct/wanted accuracy.
             question about decima of marketinfo() - MQL4 programming forum 2016.05.18

Hi There

Didn't say it is a bug I asked if it was a bug.

m_trade.Buy(long_lot,m_symbol.Name(),m_symbol.Ask(),sl,tp))

The above function accepts a double as the lot size.

Therefore using DoubleToString(long_lot,2) which I do elsewhere will not work.

I also see this has come up before elsewhere 

https://www.mql5.com/en/forum/153169

[[Deleted]]

STANTON ROUX:

Hi There

Didn't say it is a bug I asked if it was a bug.

m_trade.Buy(long_lot,m_symbol.Name(),m_symbol.Ask(),sl,tp))

The above function accepts a double as the lot size.

Therefore using DoubleToString(long_lot,2) which I do elsewhere will not work.

I also see this has come up before elsewhere 

https://www.mql5.com/en/forum/153169

please post the code. Why double to string?