Re: [nedit-develop] Does NEdit 5.6 support editing huge files (over 4GB) ?

[Ivan S. J. <isj...@i1...>]

On Sunday 29 March 2015 18:02:37 ardi wrote:
> On Saturday, March 28, 2015, Ivan Skytte Jørgensen <isj...@i1...>
> wrote:
> 
> > On Friday 27 March 2015 18:00:51 ardi wrote:
> > > If negative, what would be needed to turn NEdit huge-file compatible?
> > > Is it a lot of effort, or can I try it myself?
> >
> > I would say it is a medium-sized task, but will require good tools for
> > finding lossy 64->32 bit conversions.
> 
> 
> One good approach would be to start changing counters to "size_t", compile
> in 64bit, and enable compiler warnings to the most pedantic ones. 

The tricky part is to identify which values are sizes and which values are offsets.

> both gcc and clang would do a good task here, showing warnings in all
> places where 64bits are being clamped to 32 bits.

I have Flexelint, which is better than all the compilers I have encountered. I will use that.

> If someone can help me with the Motif/Lesstif issues that may crop up then
> > I'm willing to give it a shot over the next few weeks.
> >
> 
> If NEdit isn't sending the whole text to the widget, I don't think there
> will be any Motif issues when loading >4GB files, as Motif won't be seeing
> them.

I'm more concerned about the motif/lesstif/openmotif compatibility issues. There has been issues with nedit randomly coredumping or not even starting. My X/Window and Motif knowledge is quite rusty by now.


/isj