redefining old BIF round/1

[Graeme Defty]

. . . and finally (perhaps ;-) )

I am getting the error message:

    [{0,erl_lint,{call_to_redefined_old_bif,{round,1}}}]

This comes from a generated function because I have a model called 'round', and the model causing the error "-belongs_to(round)".

Again, this is a change in behaviour - all was well before.

This may well be a change in Erlang behaviour, but I raise it here in case someone can either confirm that and/or point me to a place where there is a parameter which allows BIF redefinition.

(I also realise that I can stop using the word 'round' . . . but in a golfing application? Which is almost 17,000 lines of erlang???  I am not keen for that to be the answer - LoL )

Thanks again for any help.

g

[Jesse Gumm]

Hi Graeme,

I realize this is just as helpful as my last recommendation, but what
if you tried adding

-compile({no_auto_import, [round/1]). to the top of your module? It's
not exactly a great fix, but it might work.

I'm curious if that would fix it.

-Jesse

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[Graeme Defty]

BRILLIANT !

Thanks Jesse - much appreciated - and from where I am standing it is a superb solution  ;-)

On a totally unrelated topic . . .

I have noticed a 57,000 times speedup in the performance of DEV mode. Well, I may be exaggerating a little, but some time ago I moved to an i7 machine precisely because performance on my i5 became unbearably slow as my application grew. It was clear the whole thing was being recompiled every time I hit enter.  I was getting 40-50 second responses.

Moving to the i7 brought that down to about 10 seconds, which was still painful, but on the plus side gave me a LOT of thinking time.  ;-)

Now with CB 0.8.12 (and Erlang 17) I am getting sub-second response times, as you would expect. It's really too short to estimate by eye.

Did something change? (Sorry - dumb question. I meant WHAT changed?)

Anyway, thanks again

g

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[Jesse Gumm]

Obviously, things have changed, but what exactly has changed is hard
to say. What version were you migrating from that you noticed such a
significant improvement in migrating to 0.8.12?

I did make some changes to the way the auto-recompilation calculated
when to recompile stuff, perhaps that was it - hard to say.

50 second page-loads are the kind of thing I'd hope to hear about as
soon as possible, because that's just way to slow.

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[Graeme Defty]

I was moving up from 0.8.5.

The changes you mention may well have been the cause.

I did raise the issue on the list long ago when the times ballooned out but nobody seemed to have the same issue, and I did not get any clues as to how to address it. That was what caused me to buy the new machine, which brought the times down into the painful-but-bearable category so I let it drop.

One aspect of my application that may be a little unusual is that it is well over 3 years old and created when CB was relatively new and very differently structured from the way it looks today. I have been through several major changes to the framework (e.g. in the early days CB code and application code were mingled together rather than separated the way they are today.) This could well mean that I have a slightly 'odd' set of components.

Perhaps I should have generated a new, 'empty' application and copied all my code into it at some point as a complete replacement, but it seemed like a lot of work and there are always user requests to be addressed. A major upgrade (such as this one) is not something to be lightly undertaken.

Anyway, all is well now. I am very grateful for your help.

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[can2nac]

i'm still on 0.8.7 and dev mode is fast enough. But u can have even more then 50 sec when u have a lot of rudimentary files in your project, for example, you change something in some.html, but u leave copy in the same folder some.org.hml, both copies will be compiled.