Initial import of the CDE 2.1.30 sources from the Open Group.
This commit is contained in:
Peter Howkins
183
cde/lib/tt/mini_isam/isminmax.c
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183
cde/lib/tt/mini_isam/isminmax.c
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/*%% (c) Copyright 1993, 1994 Hewlett-Packard Company */
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/*%% (c) Copyright 1993, 1994 International Business Machines Corp. */
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/*%% (c) Copyright 1993, 1994 Sun Microsystems, Inc. */
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/*%% (c) Copyright 1993, 1994 Novell, Inc. */
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/*%% $XConsortium: isminmax.c /main/3 1995/10/23 11:42:16 rswiston $ */
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#ifndef lint
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static char sccsid[] = "@(#)isminmax.c 1.4 89/07/17 Copyr 1988 Sun Micro";
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#endif
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/*
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* Copyright (c) 1988 by Sun Microsystems, Inc.
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*/
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/*
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* isminmax.c
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*
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* Description:
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* NetISAM minimum and maximum values functions
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*/
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#include "isam_impl.h"
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static unsigned char ismaxlongarr[LONGSIZE] = ISMAXLONG;
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static unsigned char isminlongarr[LONGSIZE] = ISMINLONG;
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static unsigned char ismaxshortarr[SHORTSIZE] = ISMAXSHORT;
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static unsigned char isminshortarr[SHORTSIZE] = ISMINSHORT;
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static unsigned char ismaxdoublearr[DOUBLESIZE] = ISMAXDOUBLE;
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static unsigned char ismindoublearr[DOUBLESIZE] = ISMINDOUBLE;
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static unsigned char ismaxfloatarr[FLOATSIZE] = ISMAXFLOAT;
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static unsigned char isminfloatarr[FLOATSIZE] = ISMINFLOAT;
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/* These two are used globally. */
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long *ismaxlong = (long *)ismaxlongarr;
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long *isminlong = (long *)isminlongarr;
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static short *ismaxshort = (short *)ismaxshortarr;
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static short *isminshort = (short *)isminshortarr;
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static double *ismaxdouble = (double *)ismaxdoublearr;
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static double *ismindouble = (double *)ismindoublearr;
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static float *ismaxfloat = (float *)ismaxfloatarr;
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static float *isminfloat = (float *)isminfloatarr;
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/*
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* _iskey_fillmax()
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*
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* Fill key buffer with maximum values
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*/
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void
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_iskey_fillmax(pkeydesc2, keybuf)
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struct keydesc2 *pkeydesc2;
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register char *keybuf;
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{
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register int i;
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register struct keypart2 *ppart;
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int nparts;
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nparts = pkeydesc2->k2_nparts;
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ppart = pkeydesc2->k2_part;
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for (i = 0; i < nparts + 1;i++) { /* +1 is for recnum part */
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switch (ppart->kp2_type) {
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case CHARTYPE:
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(void) memset (keybuf + ppart->kp2_offset, ISMAXCHAR,
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ppart->kp2_leng);
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break;
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case BINTYPE:
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(void) memset (keybuf + ppart->kp2_offset, ISMAXBIN,
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ppart->kp2_leng);
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break;
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case LONGTYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxlong, LONGSIZE);
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break;
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case SHORTTYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxshort, SHORTSIZE);
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break;
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case FLOATTYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxfloat, FLOATSIZE);
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break;
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case DOUBLETYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxdouble, DOUBLESIZE);
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break;
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case CHARTYPE + ISDESC:
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(void) memset (keybuf + ppart->kp2_offset, ISMINCHAR,
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ppart->kp2_leng);
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break;
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case BINTYPE + ISDESC:
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(void) memset (keybuf + ppart->kp2_offset, ISMINBIN,
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ppart->kp2_leng);
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break;
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case LONGTYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)isminlong, LONGSIZE);
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break;
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case SHORTTYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)isminshort, SHORTSIZE);
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break;
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case FLOATTYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)isminfloat, FLOATSIZE);
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break;
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case DOUBLETYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismindouble, DOUBLESIZE);
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break;
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default:
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_isfatal_error("_iskey_fillmax");
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}
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ppart++;
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}
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}
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/*
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* _iskey_fillmin()
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*
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* Fill key buffer with minimum values
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*/
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void
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_iskey_fillmin(pkeydesc2, keybuf)
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struct keydesc2 *pkeydesc2;
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register char *keybuf;
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{
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register int i;
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register struct keypart2 *ppart;
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int nparts;
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nparts = pkeydesc2->k2_nparts;
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ppart = pkeydesc2->k2_part;
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for (i = 0; i < nparts + 1;i++) { /* +1 is for recnum part */
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switch (ppart->kp2_type) {
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case CHARTYPE:
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(void) memset (keybuf + ppart->kp2_offset, ISMINCHAR,
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ppart->kp2_leng);
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break;
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case BINTYPE:
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(void) memset (keybuf + ppart->kp2_offset, ISMINBIN,
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ppart->kp2_leng);
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break;
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case LONGTYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)isminlong, LONGSIZE);
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break;
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case SHORTTYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)isminshort, SHORTSIZE);
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break;
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case FLOATTYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)isminfloat, FLOATSIZE);
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break;
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case DOUBLETYPE:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismindouble, DOUBLESIZE);
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break;
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case CHARTYPE + ISDESC:
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(void) memset (keybuf + ppart->kp2_offset, ISMAXCHAR,
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ppart->kp2_leng);
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break;
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case BINTYPE + ISDESC:
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(void) memset (keybuf + ppart->kp2_offset, ISMAXBIN,
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ppart->kp2_leng);
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break;
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case LONGTYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxlong, LONGSIZE);
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break;
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case SHORTTYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxshort, SHORTSIZE);
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break;
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case FLOATTYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxfloat, FLOATSIZE);
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break;
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case DOUBLETYPE + ISDESC:
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memcpy ( keybuf + ppart->kp2_offset,(char *)ismaxdouble, DOUBLESIZE);
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break;
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default:
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_isfatal_error("_iskey_fillmin");
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}
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ppart++;
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}
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}
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