• razvanaciu rdstm.ro (10/10) Jun 18 2004 how can I empty associative arrays of form
• Ben Hinkle (7/20) Jun 18 2004 This is implementation-dependent, but
• Russ Lewis (5/18) Jun 18 2004 It would be cool if there were an automatic way to do it, but I don't
• Ilya Minkov (4/10) Jun 18 2004 Bleah, i don't like it.
• Regan Heath (7/16) Jun 18 2004 This seems to work, however does it free the hash table? (length == 0

razvanaciu rdstm.ro writes:

how can I empty associative arrays of form

char[][char[]] a;

because
a.length=0 
is not allowed
and
a=new char[][char[]]
is also not allowed :)

Thank you,
Razvan

Ben Hinkle <bhinkle4 juno.com> writes:

razvanaciu rdstm.ro wrote:

 how can I empty associative arrays of form
 
 char[][char[]] a;
 
 because
 a.length=0
 is not allowed
 and
 a=new char[][char[]]
 is also not allowed :)
 
 Thank you,
 Razvan

This is implementation-dependent, but

 a = null;

works. If you want to preserve the size of the hashtable, do something like

 void*[] b = cast(void*[])a;
 b[] = null;

-Ben

Russ Lewis <spamhole-2001-07-16 deming-os.org> writes:

It would be cool if there were an automatic way to do it, but I don't 
know of any.  However, this code should work:

foreach(char[] key; a.keys)
   delete a[key];  // removes it from the hash, doesn't delete the thing



razvanaciu rdstm.ro wrote:
 how can I empty associative arrays of form
 
 char[][char[]] a;
 
 because
 a.length=0 
 is not allowed
 and
 a=new char[][char[]]
 is also not allowed :)
 
 Thank you,
 Razvan

Ilya Minkov <minkov cs.tum.edu> writes:

Russ Lewis schrieb:
 It would be cool if there were an automatic way to do it, but I don't 
 know of any. 

How about something like "b = b.init"?

 However, this code should work:
 
 foreach(char[] key; a.keys)
   delete a[key];  // removes it from the hash, doesn't delete the thing

Bleah, i don't like it.

-eye

Regan Heath <regan netwin.co.nz> writes:

On Fri, 18 Jun 2004 22:04:45 +0200, Ilya Minkov <minkov cs.tum.edu> wrote:

 Russ Lewis schrieb:
 It would be cool if there were an automatic way to do it, but I don't 
 know of any.

 How about something like "b = b.init"?

This seems to work, however does it free the hash table? (length == 0 
after this call)

 However, this code should work:

 foreach(char[] key; a.keys)
   delete a[key];  // removes it from the hash, doesn't delete the thing

 Bleah, i don't like it.

Neither, it seems in-efficient.

Regan

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