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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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vol_400
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424_02
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ED-157
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insq.c
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C/C++ Source or Header
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1993-09-10
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/*
* Copyright (C) 1992 by Rush Record (rhr@clio.rice.edu)
*
* This file is part of ED.
*
* ED is free software; you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Foundation.
*
* ED 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with ED
* (see the file COPYING). If not, write to the Free Software Foundation, 675
* Mass Ave, Cambridge, MA 02139, USA.
*/
#include "opsys.h"
#include "rec.h"
/******************************************************************************\
|Routine: insq
|Callby: buffer_app carriage_ret copy_buffer do_grep include_file inquire insert load_buffer load_file openline rec_insert rec_merge rec_split rec_trim str_to_buf
|Purpose: Inserts a record in a record queue.
|Arguments:
| e is the record to insert.
| p is the new record's predecessor.
\******************************************************************************/
void insq(e,p)
register rec_ptr e,p;
{
register rec_ptr n;
n = p->next;
e->next = n;
n->prev = e;
p->next = e;
e->prev = p;
}
/******************************************************************************\
|Routine: remq
|Callby: buffer_empty inquire killer rec_insert rec_merge rec_trim toss_data
|Purpose: Removes a record from a record queue.
|Arguments:
| e is the record to remove.
\******************************************************************************/
void remq(e)
register rec_ptr e;
{
register rec_ptr a,b;
a = e->prev;
b = e->next;
a->next = b;
b->prev = a;
}