BS>> the number of bytes contained in the Increment parameter and
BS>> changes the amount of available space accordingly. The Increment
BS>> parameter can be a negative number, in which case the amount of
BS>> available space is decreased."

Theoretically, you are right. Practically, you need first to clean that
memory (i.e., not have malloc-ed blocks there), otherwise it would just
drop dead. Given that standard malloc/free combo doesn't give you _any_
control on where blocks are allocated, you'll have hard time freeing top
of your heep unless you free totally everything. If you really need that,
use custom allocator.

Stanislav Malyshev, Zend Products Engineer
[EMAIL PROTECTED] +972-3-6139665 ext.115

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