delete a dynamic array

[tsalm]

>>  /* ------------------------------- */
>> import tango.time.Time;
>> import tango.io.Stdout;
>> import tango.stdc.stdio;
>> import tango.core.Memory;
>>  void main()
>> {
>>  // Create a big array
>>  int[] t = new int[100000000];
>>   // delete the array
>>  t = null;
>>   // Clean the memory
>>  GC.collect();
>>  GC.minimize();
>>   // No, it's not free :-(
>>  Stdout("Now, the memory must be free...")();getchar;
>> }
>>  /* ------------------------------- */
>>  How can I totally clear this array of the memory ?

> delete t;

It doesn't work too :-(

Here is what I do (phobos version, tested on dmd.2.019) :
*/ -------------------------------- */
// import tango.io.Stdout;
// import tango.stdc.stdio;
import std.stdio;


// import tango.core.Memory;
import GC = std.gc ;


void main()
{
  // Create a big array
  int[] t = new int[100000000];

  // delete the array
  delete t;

  // Clean the memory
//  GC.collect();
  GC.fullCollect;
  GC.minimize();

  // No, it's not free :-(
  writeln("Now, the memory must be free...");getchar;
}