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Re: Inconsistent behavior of 'delete'

From: fche at redhat dot com (Frank Ch. Eigler)
To: "Stone, Joshua I" <joshua dot i dot stone at intel dot com>
Cc: <systemtap at sources dot redhat dot com>
Date: 06 Jan 2006 18:35:57 -0500
Subject: Re: Inconsistent behavior of 'delete'
References: <CBDB88BFD06F7F408399DBCF8776B3DC0606ABCC@scsmsx403.amr.corp.intel.com>

joshua.i.stone wrote:

> [...]  IMHO, 'delete' should just work for any (L-value) type of
> operand.  Deleting scalars (int, string, or stat) should reset them
> to their initial state.  [...]

The delete operator in systemtap was based on that of awk, which
operates on array elements, or optionally arrays, and like C++, is
intended to hint at memory deallocation implications.  I don't feel
strongly either way about whether it should be a "reset" for ordinary
scalar ints/strings.  Scalar stats would benefit from a reset
operation, assuming we actually have functioning scalar stats. :-(

- FChE

References:
- Inconsistent behavior of 'delete'
  - From: Stone, Joshua I

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