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| Posted by Steven Schveighoffer in reply to Giovanni Di Maria | PermalinkReply |
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Steven Schveighoffer
Posted in reply to Giovanni Di Maria
| On 12/13/18 4:32 PM, Giovanni Di Maria wrote:
> Hi.
> How can I know the amount of RAM allocated by a vector?
>
> For example:
>
> string[8][1000] array;
> for(int i=0;i<1000;i++) {
> array[i]=["1111","2222","3333","4444","5555","6666","7777","8888"];
> }
>
> how can I know the amount of bytes of above matrix?
array.sizeof. BUT I would caution that you have used fixed-sized arrays so they will NOT be allocated on the heap, but rather on the stack (or thread-local storage if it's a global).
For a variable-sized array, such as string[8][], the .sizeof property is always going to be 2 words.
For that case, you need to use the GC to ask for the block size:
writeln(GC.sizeof(array.ptr));
> Can I clean the memory ofter his use, without use GC?
It depends on where you put it. But generally D does not give back any memory to the OS unless asked to do so.
But maybe that's not your question?
-Steve
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