/*
 * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED 
 * All rights reserved.
 * 
 * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
 * non-exclusive and royalty-free license to use, copy, modify and
 * redistribute, solely for non-commercial and non-profit purposes, the
 * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
 * conditions of this Agreement. For the avoidance of doubt, you acquire
 * only a limited right to use the SOFTWARE hereunder, and FLL or any
 * third party developer retains all rights, including but not limited to
 * copyrights, in and to the SOFTWARE.
 * 
 * (1) FLL does not grant you a license in any way for commercial
 * purposes. You may use the SOFTWARE only for non-commercial and
 * non-profit purposes only, such as academic, research and internal
 * business use.
 * (2) The SOFTWARE is protected by the Copyright Law of Japan and
 * international copyright treaties. If you make copies of the SOFTWARE,
 * with or without modification, as permitted hereunder, you shall affix
 * to all such copies of the SOFTWARE the above copyright notice.
 * (3) An explicit reference to this SOFTWARE and its copyright owner
 * shall be made on your publication or presentation in any form of the
 * results obtained by use of the SOFTWARE.
 * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
 * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
 * for such modification or the source code of the modified part of the
 * SOFTWARE.
 * 
 * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
 * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
 * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
 * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
 * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
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 * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
 * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
 * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
 * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
 * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
 * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
 * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
 * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
 * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
 *
 * $OpenXM: OpenXM_contrib2/asir2018/parse/comp.c,v 1.2 2018/09/28 08:20:29 noro Exp $
*/
#include "ca.h"
#include "parse.h"
#include "comp.h"
#if defined(__GNUC__) || defined(VISUAL) || defined(__MINGW32__) || (defined(__MACH__) && defined(__ppc__)) || defined(__FreeBSD__)
#include <stdarg.h>
#else
#include <varargs.h>
#endif

extern int f_return;

#if defined(__GNUC__) || defined(VISUAL) || defined(__MINGW32__) || (defined(__MACH__) && defined(__ppc__)) || defined(__FreeBSD__)
void call_usrf(FUNC f,...)
{
  va_list ap;
  int ac,i;
  pointer *c;
  VS prev_mpvs;
  NODE tn;

  va_start(ap,f);
  if ( !f )
    notdef(0,0,0,0);
  else {
    pushpvs(f);
    if ( f->f.usrf->module ) {
      prev_mpvs = MPVS;
      MPVS = f->f.usrf->module->pvs;
    }
    ac = va_arg(ap,int);
    for ( i = 0, tn = f->f.usrf->args; i < ac;
      i++, tn = NEXT(tn) )
      ASSPV((long)FA0((FNODE)BDY(tn)),va_arg(ap,pointer));
    c = va_arg(ap,pointer *); *c = evalstat(BDY(f->f.usrf));
    va_end(ap);
    f_return = 0; poppvs();
    if ( f->f.usrf->module )
      MPVS = prev_mpvs;
  }
}
#else
void call_usrf(va_alist)
va_dcl
{
  va_list ap;
  int ac,i;
  FUNC f;
  pointer a,b,*c;
  VS prev_mpvs;
  NODE tn;

  va_start(ap); f = va_arg(ap,FUNC);
  if ( !f )
    notdef(0,0,0,0);
  else {
    pushpvs(f);
    if ( f->f.usrf->module ) {
      prev_mpvs = MPVS;
      MPVS = f->f.usrf->module->pvs;
    }
    ac = va_arg(ap,int);
    for ( i = 0, tn = f->f.usrf->args; i < ac;
      i++, tn = NEXT(tn) )
      ASSPV((int)FA0((FNODE)BDY(tn)),va_arg(ap,pointer));
    c = va_arg(ap,pointer *); *c = evalstat(BDY(f->f.usrf));
    f_return = 0; poppvs();
    if ( f->f.usrf->module )
      MPVS = prev_mpvs;
  }
}
#endif

void addcomp(vl,a,b,c)
VL vl;
COMP a,b,*c;
{
  if ( a->type != b->type )
    error("addcomp : types different");
  else
    call_usrf(LSS->sa[a->type].arf.add,2,a,b,c);
}

void subcomp(vl,a,b,c)
VL vl;
COMP a,b,*c;
{
  if ( a->type != b->type )
    error("subcomp : types different");
  else
    call_usrf(LSS->sa[a->type].arf.sub,2,a,b,c);
}

void mulcomp(vl,a,b,c)
VL vl;
COMP a,b,*c;
{
  if ( a->type != b->type )
    error("mulcomp : types different");
  else
    call_usrf(LSS->sa[a->type].arf.mul,2,a,b,c);
}  

void divcomp(vl,a,b,c)
VL vl;
COMP a,b,*c;
{
  if ( a->type != b->type )
    error("divcomp : types different");
  else
    call_usrf(LSS->sa[a->type].arf.div,2,a,b,c);
}  

void chsgncomp(a,b)
COMP a,*b;
{
  call_usrf(LSS->sa[a->type].arf.chsgn,1,a,b);
}

void pwrcomp(vl,a,r,c)
VL vl;
COMP a;
Obj r;
COMP *c;
{
  call_usrf(LSS->sa[a->type].arf.pwr,2,a,r,c);
}

int compcomp(vl,a,b)
VL vl;
COMP a,b;
{
  Q c;
  int s;

  if ( a->type > b->type )
    return 1;
  else if ( a->type < b->type )
    return -1;
  else {
    call_usrf(LSS->sa[a->type].arf.comp,2,a,b,&c);
    s = ZTOS(c);
    if ( s > 0 )
      return 1;
    else if ( s < 0 )
      return -1;
    else
      return 0;
  }
}