Re: [Dev-C++] Coreleft() alternative

[Per W. <pw...@ia...>]

With DOS, I'm meant 16-bit MS-DOS without use of any DOS-extender to get
access to extra memory.

If you are using Dev-C++, you might be porting it to a 32-bit comand-line
application, but even if running in text mode, the application will have
access to just as much memory as a graphical application.

The MinGW port of gcc can not generate old 16-bit applications, even if I
know about a number of people who have created stub scripts/applications
to allow old 16-bit compilers to look and behave as MinGW.

/Per W

On Thu, 16 Feb 2006, DJPlata wrote:

> Well, maybe I forgot to mention that the ported program will still be
> running under DOS, I'm
> not porting it to a Windows application. So I assume memory cossumption is
> still an issue? The 640 KB limmitation is stille there, isn't it?
>
> ----- Original Message -----
> From: "Per Westermark" <pw...@ia...>
> To: "Patrick Hens" <Pat...@pa...>
> Cc: <dev...@li...>
> Sent: Thursday, February 16, 2006 2:03 PM
> Subject: Re: [Dev-C++] Coreleft() alternative
>
>
> > It isn't so easy to return amount of memory left in a Windows environment,
> > since the memory architecture looks so much differnt.
> >
> > Howerver, i assume that the old program was running under DOS, i.e.
> > limited to 640kB memory. Because of the great increase of available memory
> > together with swap space, most programs don't need to bother keeping track
> > of amount of free space.
> >
> > If you really want to look into it, there are a number of Win32 API calls
> > to check on the memory subsystem, but is your program regularly
> > expected to consume 50-500 MB or more?
> >
> > The two main things to care about are:
> > - not leaking memory, maging the app requiring regular restarts.
> > - handling a failed memory allocation (NULL pointer or exception depending
> > on how application is configured to behave).
> >
> > Just for fun, the app might keep track of amount of memory it has
> > allocated, to warn users that operation xx might require huge amounts of
> > memory (for example undo of a global search/replace in a megalarge
> > spreadsheet, text document, ...)
> >
> > /Per W
> >
> > On Thu, 16 Feb 2006, Patrick Hens wrote:
> >
> >> Hi,
> >>
> >> I'm porting some c source code for a DOS program written with Borland.
> >> Now I've noticed that the Devc libraries do not contain the coreleft()
> >> function. I would like to know the amount of free memory left in my
> >> program.
> >>
> >> Does anyone know an alternative way to do this?
> >>
> >> PS: I've tried to search the archives, but the search engine does not
> >> seem to work (Can not connect to server). Did not find any answers with
> >> Google either.
> >>
> >> Thanks in advance,
> >>
> >> Patrick Hens
> >
> >
> >
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