On Mon, Jan 16, 2012 at 3:11 PM, Joel C. Salomon <joelcsalo...@gmail.com>wrote:
> On 01/16/2012 02:03 PM, Bakul Shah wrote: > > On Jan 16, 2012, at 10:51 AM, Greg Comeau <comeauat9f...@gmail.com> > wrote: > >> What we do in problematic cases with Comeau is to generate code to > >> arrange for the allocation of the VLA on the heap. I'm not saying > >> this is perfect, but at least it gets the feature implementable and up > >> and running as "a portable implementation" versus perhaps not being > >> able to implement it at all on some platforms. > > > > How do you deal with longjmp? > > I recall reading the source for a (mostly-) portable alloca() that > checked where on the call-stack is was invoked from and released memory > for any alloca() invocation from lower on the stack. (The allocations > themselves were on the heap.) We do some analogous book keeping as well. -- Greg Comeau / 4.3.10.1 with C++0xisms now in beta! Comeau C/C++ ONLINE ==> http://www.comeaucomputing.com/tryitout World Class Compilers: Breathtaking C++, Amazing C99, Fabulous C90. Comeau C/C++ with Dinkumware's Libraries... Have you tried it?
