Re: Roll your own std::vector ???

"Peter Olcott" <NoSpam@xxxxxxxxxxxxx> a écrit dans le message de news:
pVihh.19892$Rj.19203@xxxxxxxxxxxxxxx

| The commonly understood basic principle where an array name is
| one-and-the-same-thing as an array address.

In that case, that would appear to be the principle for all .NET types. The
variable that you see *is* the object that the variable points to. There is
no indirection on the surface, even though the underlying framework may
involve such.

I think the thing that you are having trouble with is this lack of
indirection; when it comes to C#, you need to try to forget about ->, & and
* and simply think of variables as being one and the same as the object
which they hold. For the sake of your comprehension, forget about pointers
and addresses :-)

| Yes that is what I was talking about, they are both pointers within the
| underlying architecture.

Maybe but that should not concern you; forget pointers :-)).

| > As I said in my previous post, the contents of value types are copied on
| > assignment, but those of reference types are simply "pointed to" by the
| > second reference.
|
| Array.Copy(ia, temp, ia.Length);
| ia = temp;
|
| So the last statement contains two reference types, even though the
underlying
| type of array element may be a value type or a reference type ???

Array is a reference type, regardless of the type that it holds. See Jon's
post as well.

Joanna

--
Joanna Carter [TeamB]
Consultant Software Engineer


.

Relevant Pages

  • Re: Roll your own std::vector ???
    ... For the sake of your comprehension, forget about pointers ... to always provide all of the overhead of a deep copy just in case that is what ... but those of reference types are simply "pointed to" by the ... | type of array element may be a value type or a reference type ??? ...
    (microsoft.public.dotnet.languages.csharp)
  • Re: arrays = pointers?
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    (microsoft.public.dotnet.languages.csharp)
  • Re: Differance between Array and Pointers
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    (comp.arch.embedded)
  • [RFCv2][PATCH] flexible array implementation
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    (Linux-Kernel)
  • [RFC][PATCH] flexible array implementation v4
    ... I call it a flexible array. ... so never does an order>0 allocation. ... storage for pointers to the second level. ... all locking must be provided by the caller. ...
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