B4R Question Whether Pointers can be supported

[santook]

Can B4R support operations like AddressOf, so that in inline C, you can use Pointers to pass functions or other types?
Object objects use wrapNumber, not wrapPointer, by default.

#Region Project Attributes
    #AutoFlushLogs: True
    #CheckArrayBounds: True
    #StackBufferSize: 600
#End Region
'Ctrl+Click to open the C code folder: ide://run?File=%WINDIR%\System32\explorer.exe&Args=%PROJECT%\Objects\Src

Sub Process_Globals
    Public Serial1 As Serial
    Private wifi As ESP8266WiFi
End Sub

Private Sub AppStart
    Dim o As Object
    Serial1.Initialize(115200)
    Log("AppStart")
    'example of connecting to a local network
    If wifi.Connect2("NantongCorona", "14725836") Then
        Log("Connected to network")
    Else
        Log("Failed to connect to network")
    End If
    o=fun1
    'Like this
    'o=AddressOf(fun1)
   
    RunNative("gofun1",o)
   
End Sub

Private Sub fun1()
    Log("Hello World!")
End Sub


#if C
   
    void gofun1(B4R::Object* o)
    {
        void (*p)();
        p=(void(*)())o->data.PointerField;
        p();
    }
#End If

 

[Erel]

You should write a library and use the events mechanism, which is based on function pointers.

Creating libraries for B4R

Libraries are written in C++. Libraries are made of a single h file and one or more cpp files. Libraries can also include other h files which will not be exposed. All the files should be in the same folder. The attached h2xml jar reads the h file and creates the xml file that is used by the...

www.b4x.com

 

[santook]

Yes, I know how to write libraries and events. While this is great, there is a problem with it, which is that it is not conducive to personalization and maintenance. Modules and inline C can. It also saves resources and multiple calls.
Given that AddressOf is supported, I think this is a good choice.