Files
calc/help/blkfree
Landon Curt Noll a31078bbec Remove all RCS @(#) lines and RCS strings
Some folks might think: “you still use RCS”?!?  And we will say,
hey, at least we switched from SCCS to RCS back in … I think it was
around 1994 ... at least we are keeping up! :-) :-) :-)

Logs say that SCCS version 18 became RCS version 19 on 1994 March 18.

RCS served us well.  But now it is time to move on.   And so we are
switching to git.

Calc releases produce a lot of file changes.  In the 125 releases
of calc since 1996, when I started managing calc releases, there
have been 15473 file mods!
2017-05-23 01:33:23 -07:00

81 lines
2.1 KiB
Plaintext

NAME
blkfree - free memory allocated to named block
SYNOPSIS
blkfree(val)
TYPES
val named block, string, or integer
return null value
DESCRIPTION
If val is a named block, or the name of a named block, or the
identifying index for a named block, blkfree(val) frees the
memory block allocated to this named block. The block remains
in existence with the same name, identifying index, and chunksize,
but its size and maxsize becomes zero and the pointer for the start
of its data block null.
A new block of memory may be allocated to a freed block B by
blk(B [, len, chunk]), len defaulting to zero and chunk to the
chunksize when the block was freed.
EXAMPLE
; B1 = blk("foo")
; B2 = blk("Second block")
show blocks
id name
---- -----
0 foo
1 Second block
; blkfree(B1)
; show blocks
id name
---- -----
1 Second block
; B1
block 0: foo
chunksize = 256, maxsize = 0, datalen = 0
NULL
; blk(B1); B[7] = 5
; B1
block 0: foo
chunksize = 256, maxsize = 256, datalen = 8
0000000000000005
LIMITS
none
LINK LIBRARY
none
SEE ALSO
blk, blocks
## Copyright (C) 1999 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## Under source code control: 1997/04/05 13:07:13
## File existed as early as: 1997
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/