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Length: 1178 (0x49a)
Types: TextFile
Names: »prim2num.c«
└─⟦3d0c2be1b⟧ Bits:30001254 ISODE-5.0 Tape
└─⟦eba4602b1⟧ »./isode-5.0.tar.Z«
└─⟦d3ac74d73⟧
└─⟦this⟧ »isode-5.0/psap/prim2num.c«
/* prim2num.c - presentation element to integer */
#ifndef lint
static char *rcsid = "$Header: /f/osi/psap/RCS/prim2num.c,v 6.0 89/03/18 23:38:54 mrose Rel $";
#endif
/*
* $Header: /f/osi/psap/RCS/prim2num.c,v 6.0 89/03/18 23:38:54 mrose Rel $
*
*
* $Log: prim2num.c,v $
* Revision 6.0 89/03/18 23:38:54 mrose
* Release 5.0
*
*/
/*
* NOTICE
*
* Acquisition, use, and distribution of this module and related
* materials are subject to the restrictions of a license agreement.
* Consult the Preface in the User's Manual for the full terms of
* this agreement.
*
*/
/* LINTLIBRARY */
#include <stdio.h>
#include "psap.h"
/* \f
*/
int prim2num (pe)
register PE pe;
{
register int i;
register PElementData dp,
ep;
if (pe -> pe_form != PE_FORM_PRIM || pe -> pe_prim == NULLPED)
return pe_seterr (pe, PE_ERR_PRIM, NOTOK);
if (pe -> pe_len > sizeof (int))
return pe_seterr (pe, PE_ERR_OVER, NOTOK);
pe -> pe_errno = PE_ERR_NONE;/* in case integer is NOTOK-valued */
i = (*(dp = pe -> pe_prim) & 0x80) ? (-1) : 0;
for (ep = dp + pe -> pe_len; dp < ep;)
i = (i << 8) | (*dp++ & 0xff);
return i;
}