sean@ms.uky.edu (Sean Casey) (04/26/91)
I'm writing an application that needs to malloc about 1500K of memory for a large tree. Does anyone know any tricks to let the BC++ heap see extended memory? Frankly, I'm dissapointed that I can't find the answer. One would think by now that extended memory would be supported by this famous compiler. I've raked through the docs and written a bunch of 10 liners, but that 640K limit seems a granite wall. Sean -- ** Sean Casey <sean@s.ms.uky.edu>
sba8_ltd@uhura.cc.rochester.edu (Scott Barnes) (04/27/91)
In <sean.672670930@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes: >I'm writing an application that needs to malloc about 1500K of memory >for a large tree. Does anyone know any tricks to let the BC++ heap see >extended memory? I believe what you need is some type of DOS extender. Although BC++ uses a DOS extender (TKERNAL) to access extended memory, that does not mean that you can in turn use the capability in your own applications. If you don't want to purchase a DOS extender, there are alternative techniques such as RAMdisks that can be used. ------------------------------------------------------------------------------ SCOTT BARNES INTERNET: sba8_ltd@uhura.cc.rochester.edu University of Rochester BITNET : sba8_ltd@uordbv GEnie : S.BARNES2 C-serve : 72510,1553
bright@nazgul.UUCP (Walter Bright) (05/05/91)
In article <sean.672670930@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes:
/I'm writing an application that needs to malloc about 1500K of memory
/for a large tree. Does anyone know any tricks to let the BC++ heap see
/extended memory?
For applications of this sort, you simply need a 32 bit compiler, that runs
with a 32 bit DOS Extender like Pharlap's. 32 bit compilers for MSDOS include:
Zortech C/C++
Watcom C
Metaware C
With a 32 bit compiler you needn't worry again about far pointers, huge
pointers, 64k segments or 640k barriers.dridge@athena.mit.edu (Matthew W Eldridge) (05/06/91)
What about Zortech C++. Does anyone have any specific information about this product, cost, etc.??? As per 32bit DOS, any recommendations. I need somethine that will be compatible with all my present DOS apps, I assume this is standard for these packages though... I am developing a C++ system which will be well over 1Meg of code. I would love to put it all in memory without using overlays, etc. If I could have all my data in memory at the same time it would be fantastic. Matthew dridge@athena.mit.edu
sondeen@isi.edu (Jeff Sondeen) (05/07/91)
In article <316@nazgul.UUCP> bright@nazgul.UUCP (Walter Bright) writes: >In article <sean.672670930@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes: >/I'm writing an application that needs to malloc about 1500K of memory >/for a large tree. Does anyone know any tricks to let the BC++ heap see >/extended memory? > >For applications of this sort, you simply need a 32 bit compiler, that runs >with a 32 bit DOS Extender like Pharlap's. 32 bit compilers for MSDOS include: > >Zortech C/C++ >Watcom C >Metaware C > >With a 32 bit compiler you needn't worry again about far pointers, huge >pointers, 64k segments or 640k barriers. Also djgcc, a very nice port of GNU gcc/g++ over to MSDOS with its own DOS extender. Perhaps not as well-supported as commercial software, but the price is right (if you can live with the copyleft). Available by anon. ftp at grape.ecs.clarkson.edu, directory pub/msdos/djgcc and other fine pc software stores. -- /jeff sondeen@isi.edu "engineers were discouraged from bringing problems to the attention of their supervisors" -- John Magnus, final report, Hubble Space Telescope investigation
bright@nazgul.UUCP (Walter Bright) (05/22/91)
In article <1991May6.164552.12990@athena.mit.edu> dridge@athena.mit.edu (Matthew W Eldridge) writes:
/What about Zortech C++. Does anyone have any specific information
/about this product, cost, etc.???
Call us at 800-848-8408 and we'll be happy to send you a brochure. Since
you are on a .edu system, ask about our educational discount.