This has stressed me out the most:
Now imported dll functions can't accept string arrays as a parameter. As in MQL5
... Is this critical and could affect the behaviour of the programme...?
I compiled the file with the new editor and slipped it to MT4.509 - it deleted it... :(
This is logical, as the old terminal knows nothing about the new language format.
So far, we have only released an editor and compiler for preliminary testing. In a couple of weeks we will release a beta version of the new terminal that can work with the new program format.
I recommend to read the links in the original post - they practically cover everything.
This is logical, as the old terminal knows nothing about the new language format.
So far, we have only released an editor and compiler for preliminary testing. In a couple of weeks, we will release a beta version of the new terminal that can work with the new program format.
I recommend reading the links in the original post - they cover almost everything.
I haven't looked at it yet, but it would be better to make a tester like MT5, with quotes :), and it wouldn't hurt to attach a tester to processor resources.
I haven't watched it yet, but it would be better if they made a tester like MT5, with quotes :), and it wouldn't hurt to attach a tester to processor resources.
Remember the cartoon "Porridge from the axe"? ;)))
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Start of topic:
Below is the beta version of the IDE, the same for MetaTrader 4/MQL4 and MetaTrader 5/MQL5. This is a preview version for public review.
What are the differences from the old version of MQL4?
The priority of logical AND/OR operations has been changed. Now everything is as in classic C/C++.
A shortened evaluation of logical expressions has been introduced. Now, when evaluating a logical expression, the remaining subexpressions are not evaluated. As in C/C++.
The switch operator now uses only integer values. Previously, you could use real ones.
Now, you cannot use a full stop in variable names. Also, you cannot use the '@', '$', '?' characters in variable names.
The requirements to the start function have been tightened. Previously, you could specify parameters in the start function. Now all the entry points init, start, deinit, OnInit, OnStart, OnTick, OnTimer, etc. must exactly match their signatures
Due to the expansion of the keyword set, we cannot use names like short, long, float, const, virtual, input, delete, new, do, char.
Now imported dll-functions cannot take string arrays as a parameter. As in MQL5
The differences are not fatal and may be easily fixed in the code. In exchange, we have a lot of MQL5 features available, as well as the speed of execution and much tighter quality control.
We are planning to run public testing throughout the next month to collect as much feedback as possible and to prepare developers.
Discussion on the MQL5 forum: https://www.mql5.com/ru/forum/13651