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85 lines
2.3 KiB
Plaintext
85 lines
2.3 KiB
Plaintext
NAME
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blkfree - free memory allocated to named block
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SYNOPSIS
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blkfree(val)
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TYPES
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val named block, string, or integer
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return null value
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DESCRIPTION
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If val is a named block, or the name of a named block, or the
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identifying index for a named block, blkfree(val) frees the
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memory block allocated to this named block. The block remains
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in existence with the same name, identifying index, and chunksize,
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but its size and maxsize becomes zero and the pointer for the start
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of its data block null.
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A new block of memory may be allocated to a freed block B by
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blk(B [, len, chunk]), len defaulting to zero and chunk to the
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chunksize when the block was freed.
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EXAMPLE
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> B1 = blk("foo")
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> B2 = blk("Second block")
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show blocks
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id name
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---- -----
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0 foo
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1 Second block
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> blkfree(B1)
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> show blocks
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id name
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---- -----
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1 Second block
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> B1
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block 0: foo
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chunksize = 256, maxsize = 0, datalen = 0
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NULL
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> blk(B1); B[7] = 5
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> B1
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block 0: foo
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chunksize = 256, maxsize = 256, datalen = 8
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0000000000000005
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LIMITS
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none
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LINK LIBRARY
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none
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SEE ALSO
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blk, blocks
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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##
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## @(#) $Revision: 29.1 $
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## @(#) $Id: blkfree,v 29.1 1999/12/14 09:15:43 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/blkfree,v $
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##
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## Under source code control: 1997/04/05 13:07:13
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## File existed as early as: 1997
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##
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## chongo <was here> /\oo/\ http://reality.sgi.com/chongo/
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## Share and enjoy! :-) http://reality.sgi.com/chongo/tech/comp/calc/
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