Re: [avr-libc-dev] new, delete support

[kashey]

Ned Konz пишет:
> kashey wrote:
> > kashey пишет:
> > > Ned Konz пишет:
> > > > kashey wrote:
> > > > > Hi all.
> > > > > When be included support new and delete functions support in 
> > > > > avr-libc?
> > > >
> > > > What do you need? Assuming you don't need the whole libstdc++ 
> > > > library, this will probably do what you need for typical C++ programs.
> > > >
> > > >
> > > > extern "C" {
> > > > #include <stddef.h>
> > > > #include <stdlib.h>
> > > > }
> > > >
> > > > void *operator
> > > > new(size_t sz) throw()
> > > > {
> > > >   return malloc(sz);
> > > > }
> > > >
> > > > void operator
> > > > delete(void *p)
> > > > {
> > > >     free(p);
> > > > }
> > > >
> > > > extern "C" __cxa_pure_virtual();
> > > >
> > > > void __cxa_pure_virtual()
> > > > {
> > > >    abort();
> > > > }
> > > And what about calling Constructor/Destructor ?
>
> What do you mean? That's not the job of avr-libc.
>
> Is there some code that you want to write that won't call the 
> constructor and destructor, given the above?
>
> I am using a recent version of avr-gcc (4.2.0, almost) and am using 
> templates, constructors, destructors, and so on using more or less 
> just the above and avr-libc.
>
> Most of my objects are static, and so the constructors get called 
> before main() (and the destructors never do), but if there were 
> actually an exit from my code (nowhere to go, in ROM) the destructors 
> would also get called.
It's solution for static objects. If you can describe what i have do if 
I'll use dynamic object.

As example:
class KMyClass
{
   private:
      int *Array;
      int Len;
   public:
      KMyClass(int Len)
      {
         Len = len;
          Array = new int [len];
       }
      ~KMyClass()
      {
         delete [] Array;
      }
}

...
int main()
{
   KMyClass *var = new KMyClass(10);
   ...
   return 0;
}


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