Increase Stack Size Dev C++
- Hi - IDE: Bloodshed Dev-C Version 4.9.9.2 - Compiler: gcc I wish to increase the stack size from the default 2MB to 16MB for a program I am compiling.
- Dec 17, 2016 IF any queries please comment below. Keep supporting us. Subscribe for more Hope you are enjoying click here for subscribe: https://www.youtube.com/channel.
- The system sets both soft and hard limits for these parameters. The soft limit is the actual limit imposed by the system. For example, the soft stack limit is the maximum stack size the system will allow a process to use. Users cannot increase their hard limits. Hard Limits can be decreased, but its not recommended.
Gcc Stack Size
The stack size is limited because you want to be able to run many programs at once: if all 1000 of the programs running on your computer had all asked for 1GB up front (stack is UP FRONT, its allocated at program launch) you would need quite the machine! By limiting it, many programs can run at once without one or two of them stealing all the resources.
Its not a 'bad idea' so much as 'you can't do it past some point'. C++, unlike the vast majority of languages, does not have a lot of places where it says 'you can't do that'. This is one of those few places, an the reason, mostly, is the limits are imposed from on high and the language can't do much about this.
That said, I routinely read 4-5 GB files into the heap. memory allocation isnt that big a deal anymore. And even 'back in the day' it really wasnt as bad as people make it out to be; I had a 'dumb pointer' template class that simply called delete when it went out of scope, and used it on everything for years back then. It didn't do anything else, just constructor and destructor. Which is pretty much what the modern pointers do, I think. (Actually, It did one other thing, it prevented the user from leaking by reallocating it, because you could only allocate it at construction and could not re-assign the pointer to another block etc).
Linux Stack Size
Aug 17, 2006 Is there any way to determine stack and heap size, during runtime. I.e can we predict stack overflow. Etc On Linux, you can get/set heap size with the sbrk function. Not too sure about stack size though. Linux probably has an initial stack size that is probably kernel-version dependant. If you overflow the stack, I think Linux will just make. Jul 22, 2005 How to increase HEAP size in VC 6.0 environment. C / C Forums on Bytes. On a side note, this forum is suppose to be c only - not OS dependent or compiler dependent. Anyway, I hope those two API calls will help you. Increase UDFMEM and APPCTLHEAPSZ size; stack increase direction and big-endian or little-endia.
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