Coroutine + Print

Using print() ([edit]:not ElapsedTime) in a coroutine freezes Codea or closes it, it depends. Is it a bug or is it the behavior to be expected? (i am newbe to co-routines, so i don’t know what i should expect). PS: i am on 1.5(7), in case that’s the reason.
[EDIT] after some more test: maybe it is not ElapsedTime, but using print() that generate the problem. Print(“t0”) from the coroutine freeze Codea.


-- test coroutine

-- Use this function to perform your initial setup
function setup()
    print("trying to use coroutines")
    x1=0
    --fps = FPS()
end

longFonc2 = coroutine.wrap(function()
    local xmax=100000
    local t0,dt = 0,0.01
    local restart = true
    local killMe = false
    local x = 0
    while not killMe do
        if restart then 
            x=0 
--            print("t0") -- this freeze codea
            restart = false
        end
        t0 = os.clock()+ dt
        if x<xmax then
            for i=1,xmax do
                x = x + 1
                if os.clock()>t0 then 
                    coroutine.yield(x,false) 
                    t0 = os.clock()+ dt
                end
            end
        end
       restart,_,t0 = coroutine.yield(x,true) 
    end
end)

-- This function gets called once every frame
function draw()
    -- This sets a dark background color 
    background(40, 40, 50)

    -- This sets the line thickness
    strokeWidth(5)

    -- Do your drawing here
    local a,b
    if math.floor(ElapsedTime)~=math.floor(ElapsedTime-DeltaTime) then 
        a,b = longFonc2(true,false,ElapsedTime)
        print(a,b)
    else a,b = longFonc2() end
    
    -- fps:draw()
    -- write the x on the screen
    fill(208, 208, 208, 255)
    fontSize(100)
    font("AmericanTypewriter-Bold")
    rectMode(CENTER)
    text(tostring(a),WIDTH/2,HEIGHT/2)
    
end

@Jmv38, how’d you get Codea v 1.5?
I’m only on v 1.4.6

Last I checked there was no update for Codea to update to 1.5 yet, so how’d you get it?

@Anonycode, he is a beta tester, Simeon allows him to test the newest versions

@Jmv38, on 1.4.6 it works fine, must be a problem with the beta…

Thank @Jordan. Have you tried to uncomment the line with print(“t0”) and then it prints “t0” every 3-4 seconds?

Yes, and it works perfectly

Ok thanks.