I feel kind of stupid to ask, since (I guess) this should be simple, but how do you allocate a single instance of a struct on the heap?  new doesn't work, giving the error "Error: new can only create arrays or class objects, not <structName>'s".

I know, I could allocate an array of length 1, but what I really want is a pointer, not an array (I'm going to cast it to a void pointer soon, and send it flying through C-space...)

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Russ Lewis wrote:
> I feel kind of stupid to ask, since (I guess) this should be simple, but
> how do you allocate a single instance of a struct on the heap?  new
> doesn't work, giving the error "Error: new can only create arrays or
> class objects, not <structName>'s".
> 
> I know, I could allocate an array of length 1, but what I really want is
> a pointer, not an array (I'm going to cast it to a void pointer soon,
> and send it flying through C-space...)
> 
> --
> The Villagers are Online! villagersonline.com
> 
> .[ (the fox.(quick,brown)) jumped.over(the dog.lazy) ]
> .[ (a version.of(English).(precise.more)) is(possible) ]
> ?[ you want.to(help(develop(it))) ]

Any thoughts on this, anybody?

Russell Lewis <spamhole-2001-07-16@deming-os.org> wrote in news:3D8F7EB9.8050305@deming-os.org:

> Russ Lewis wrote:
>> I feel kind of stupid to ask, since (I guess) this should be simple,
but
>> how do you allocate a single instance of a struct on the heap?  new doesn't work, giving the error "Error: new can only create arrays or class objects, not <structName>'s".
>> 
>> I know, I could allocate an array of length 1, but what I really want
is
>> a pointer, not an array (I'm going to cast it to a void pointer soon, and send it flying through C-space...)
> 
> Any thoughts on this, anybody?

struct Foo
{
  int a;
  int b;
}

int main(char[][] argv)
{
  Foo* pFoo = new Foo[1];

  return 0;
}

Patrick Down wrote:
> Russell Lewis <spamhole-2001-07-16@deming-os.org> wrote in news:3D8F7EB9.8050305@deming-os.org:
> 
> 
>>Russ Lewis wrote:
>>
>>>I feel kind of stupid to ask, since (I guess) this should be simple, 
>>
> but
> 
>>>how do you allocate a single instance of a struct on the heap?  new
>>>doesn't work, giving the error "Error: new can only create arrays or
>>>class objects, not <structName>'s".
>>>
>>>I know, I could allocate an array of length 1, but what I really want 
>>
> is
> 
>>>a pointer, not an array (I'm going to cast it to a void pointer soon,
>>>and send it flying through C-space...)
>>
>>Any thoughts on this, anybody?
> 
> 
> struct Foo
> {
>   int a;
>   int b;
> }
> 
> int main(char[][] argv)
> {   Foo* pFoo = new Foo[1];
>     return 0;
> }
>  
> 

But why???

Russell Lewis <spamhole-2001-07-16@deming-os.org> wrote in news:3D8FAF8B.2050907@deming-os.org:
> 
> But why???

You mean why can't you just do

Foo* p = new Foo; //??

I don't know. <g> new Foo[1] seems
pretty much the same to me.  It
creates a block of heap memory
large enough to hold one Foo.

Looks like a compiler bug to me. -Walter

"Patrick Down" <pat@codemoon.com> wrote in message news:Xns9292CBA453F87patcodemooncom@63.105.9.61...
> Russell Lewis <spamhole-2001-07-16@deming-os.org> wrote in news:3D8FAF8B.2050907@deming-os.org:
> >
> > But why???
>
> You mean why can't you just do
>
> Foo* p = new Foo; //??
>
> I don't know. <g> new Foo[1] seems
> pretty much the same to me.  It
> creates a block of heap memory
> large enough to hold one Foo.