version 1.28, 2017/08/31 04:21:48 |
version 1.29, 2018/03/29 01:32:54 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/parse/arith.c,v 1.27 2017/08/31 02:36:21 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/parse/arith.c,v 1.28 2017/08/31 04:21:48 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "parse.h" |
#include "parse.h" |
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struct oAFUNC { |
struct oAFUNC { |
void (*add)(); |
void (*add)(); |
void (*sub)(); |
void (*sub)(); |
void (*mul)(); |
void (*mul)(); |
void (*div)(); |
void (*div)(); |
void (*pwr)(); |
void (*pwr)(); |
void (*chsgn)(); |
void (*chsgn)(); |
int (*comp)(); |
int (*comp)(); |
}; |
}; |
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struct oARF arf[6]; |
struct oARF arf[6]; |
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struct oAFUNC afunc0[] = { |
struct oAFUNC afunc0[] = { |
/* O_VOID=-1 */ {notdef,notdef,notdef,notdef,notdef,notdef,compvoid}, |
/* O_VOID=-1 */ {notdef,notdef,notdef,notdef,notdef,notdef,compvoid}, |
/* ???=0 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* ???=0 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_N=1 */ {addnum,subnum,mulnum,divnum,pwrnum,chsgnnum,compnum}, |
/* O_N=1 */ {addnum,subnum,mulnum,divnum,pwrnum,chsgnnum,compnum}, |
/* O_P=2 */ {addp,subp,mulp,divr,pwrp,chsgnp,compp}, |
/* O_P=2 */ {addp,subp,mulp,divr,pwrp,chsgnp,compp}, |
/* O_R=3 */ {addr,subr,mulr,divr,pwrr,chsgnr,compr}, |
/* O_R=3 */ {addr,subr,mulr,divr,pwrr,chsgnr,compr}, |
/* O_LIST=4 */ {notdef,notdef,notdef,notdef,notdef,notdef,complist}, |
/* O_LIST=4 */ {notdef,notdef,notdef,notdef,notdef,notdef,complist}, |
/* O_VECT=5 */ {addvect,subvect,mulvect,divvect,notdef,chsgnvect,compvect}, |
/* O_VECT=5 */ {addvect,subvect,mulvect,divvect,notdef,chsgnvect,compvect}, |
/* O_MAT=6 */ {addmat,submat,mulmat,divmat,pwrmat,chsgnmat,compmat}, |
/* O_MAT=6 */ {addmat,submat,mulmat,divmat,pwrmat,chsgnmat,compmat}, |
/* O_STR=7 */ {addstr,notdef,notdef,notdef,notdef,notdef,compstr}, |
/* O_STR=7 */ {addstr,notdef,notdef,notdef,notdef,notdef,compstr}, |
/* O_COMP=8 */ {addcomp,subcomp,mulcomp,divcomp,pwrcomp,chsgncomp,compcomp}, |
/* O_COMP=8 */ {addcomp,subcomp,mulcomp,divcomp,pwrcomp,chsgncomp,compcomp}, |
/* O_DP=9 */ {addd,subd,muld,divdc,notdef,chsgnd,compd}, |
/* O_DP=9 */ {addd,subd,muld,divdc,notdef,chsgnd,compd}, |
/* O_USINT=10 */ {notdef,notdef,notdef,notdef,notdef,notdef,compui}, |
/* O_USINT=10 */ {notdef,notdef,notdef,notdef,notdef,notdef,compui}, |
/* O_ERR=11 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_ERR=11 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_GF2MAT=12 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_GF2MAT=12 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_MATHCAP=13 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_MATHCAP=13 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_F=14 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_F=14 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_GFMMAT=15 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_GFMMAT=15 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_BYTEARRAY=16 */ {notdef,notdef,notdef,notdef,notdef,notdef,compbytearray}, |
/* O_BYTEARRAY=16 */ {notdef,notdef,notdef,notdef,notdef,notdef,compbytearray}, |
/* O_QUOTE=17 */ {addquote,subquote,mulquote,divquote,pwrquote,chsgnquote,compquote}, |
/* O_QUOTE=17 */ {addquote,subquote,mulquote,divquote,pwrquote,chsgnquote,compquote}, |
/* O_OPTLIST=18 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_OPTLIST=18 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_SYMBOL=19 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_SYMBOL=19 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_RANGE=20 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_RANGE=20 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_TB=21 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_TB=21 */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef}, |
/* O_DPV=22 */ {adddv,subdv,muldv,notdef,notdef,chsgndv,compdv}, |
/* O_DPV=22 */ {adddv,subdv,muldv,notdef,notdef,chsgndv,compdv}, |
/* O_QUOTEARG=23 */ {notdef,notdef,notdef,notdef,notdef,notdef,compqa}, |
/* O_QUOTEARG=23 */ {notdef,notdef,notdef,notdef,notdef,notdef,compqa}, |
/* O_MAT=24 */ {AddMatI,SubMatI,MulMatG,notdef,notdef,ChsgnI,(int(*)())notdef}, |
/* O_MAT=24 */ {AddMatI,SubMatI,MulMatG,notdef,notdef,ChsgnI,(int(*)())notdef}, |
/* O_NBP=25 */ {addnbp,subnbp,mulnbp,notdef,pwrnbp,chsgnnbp,compnbp}, |
/* O_NBP=25 */ {addnbp,subnbp,mulnbp,notdef,pwrnbp,chsgnnbp,compnbp}, |
/* O_DPM=26 */ {adddpm,subdpm,mulobjdpm,notdef,notdef,chsgndpm,compdpm}, |
/* O_DPM=26 */ {adddpm,subdpm,mulobjdpm,notdef,notdef,chsgndpm,compdpm}, |
}; |
}; |
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struct oAFUNC *afunc = &afunc0[1]; |
struct oAFUNC *afunc = &afunc0[1]; |
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void arf_init() { |
void arf_init() { |
addfs = &arf[0]; addfs->name = "+"; addfs->fp = arf_add; |
addfs = &arf[0]; addfs->name = "+"; addfs->fp = arf_add; |
subfs = &arf[1]; subfs->name = "-"; subfs->fp = arf_sub; |
subfs = &arf[1]; subfs->name = "-"; subfs->fp = arf_sub; |
mulfs = &arf[2]; mulfs->name = "*"; mulfs->fp = arf_mul; |
mulfs = &arf[2]; mulfs->name = "*"; mulfs->fp = arf_mul; |
divfs = &arf[3]; divfs->name = "/"; divfs->fp = arf_div; |
divfs = &arf[3]; divfs->name = "/"; divfs->fp = arf_div; |
remfs = &arf[4]; remfs->name = "%"; remfs->fp = arf_remain; |
remfs = &arf[4]; remfs->name = "%"; remfs->fp = arf_remain; |
pwrfs = &arf[5]; pwrfs->name = "^"; pwrfs->fp = arf_pwr; |
pwrfs = &arf[5]; pwrfs->name = "^"; pwrfs->fp = arf_pwr; |
} |
} |
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void arf_add(VL vl,Obj a,Obj b,Obj *r) |
void arf_add(VL vl,Obj a,Obj b,Obj *r) |
{ |
{ |
int mid; |
int mid; |
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if ( !a ) |
if ( !a ) |
*r = b; |
*r = b; |
else if ( !b ) |
else if ( !b ) |
*r = a; |
*r = a; |
else if ( OID(a) == OID(b) ) |
else if ( OID(a) == OID(b) ) |
(*afunc[OID(a)].add)(vl,a,b,r); |
(*afunc[OID(a)].add)(vl,a,b,r); |
else if ( (mid = MAX(OID(a),OID(b))) <= O_R || mid == O_QUOTE ) |
else if ( (mid = MAX(OID(a),OID(b))) <= O_R || mid == O_QUOTE ) |
(*afunc[mid].add)(vl,a,b,r); |
(*afunc[mid].add)(vl,a,b,r); |
else if ( (mid = MAX(OID(a),OID(b))) == O_DP && MIN(OID(a),OID(b)) <= O_R ) |
else if ( (mid = MAX(OID(a),OID(b))) == O_DP && MIN(OID(a),OID(b)) <= O_R ) |
(*afunc[mid].add)(vl,a,b,r); |
(*afunc[mid].add)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
} |
} |
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void arf_sub(VL vl,Obj a,Obj b,Obj *r) |
void arf_sub(VL vl,Obj a,Obj b,Obj *r) |
{ |
{ |
int mid; |
int mid; |
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if ( !a ) |
if ( !a ) |
if ( !b ) |
if ( !b ) |
*r = 0; |
*r = 0; |
else |
else |
(*afunc[OID(b)].chsgn)(b,r); |
(*afunc[OID(b)].chsgn)(b,r); |
else if ( !b ) |
else if ( !b ) |
*r = a; |
*r = a; |
else if ( OID(a) == OID(b) ) |
else if ( OID(a) == OID(b) ) |
(*afunc[OID(a)].sub)(vl,a,b,r); |
(*afunc[OID(a)].sub)(vl,a,b,r); |
else if ( (mid = MAX(OID(a),OID(b))) <= O_R || mid == O_QUOTE ) |
else if ( (mid = MAX(OID(a),OID(b))) <= O_R || mid == O_QUOTE ) |
(*afunc[mid].sub)(vl,a,b,r); |
(*afunc[mid].sub)(vl,a,b,r); |
else if ( (mid = MAX(OID(a),OID(b))) == O_DP && MIN(OID(a),OID(b)) <= O_R ) |
else if ( (mid = MAX(OID(a),OID(b))) == O_DP && MIN(OID(a),OID(b)) <= O_R ) |
(*afunc[mid].sub)(vl,a,b,r); |
(*afunc[mid].sub)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
} |
} |
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void arf_mul(VL vl,Obj a,Obj b,Obj *r) |
void arf_mul(VL vl,Obj a,Obj b,Obj *r) |
{ |
{ |
int mid,aid,bid; |
int mid,aid,bid; |
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if ( !a && !b ) |
if ( !a && !b ) |
*r = 0; |
*r = 0; |
else if ( !a || !b ) { |
else if ( !a || !b ) { |
if ( !a ) a = b; |
if ( !a ) a = b; |
/* compute a*0 */ |
/* compute a*0 */ |
if ( OID(a) == O_MAT || OID(a) == O_VECT ) |
if ( OID(a) == O_MAT || OID(a) == O_VECT ) |
(*(afunc[O_MAT].mul))(vl,a,0,r); |
(*(afunc[O_MAT].mul))(vl,a,0,r); |
else if ( OID(a) == O_IMAT ) |
else if ( OID(a) == O_IMAT ) |
(*(afunc[O_IMAT].mul))(vl,0,a,r); |
(*(afunc[O_IMAT].mul))(vl,0,a,r); |
else |
else |
*r = 0; |
*r = 0; |
} else if ( (aid = OID(a)) == (bid = OID(b)) ) |
} else if ( (aid = OID(a)) == (bid = OID(b)) ) |
(*(afunc[aid].mul))(vl,a,b,r); |
(*(afunc[aid].mul))(vl,a,b,r); |
else if ( (mid = MAX(aid,bid)) <= O_R || mid == O_QUOTE ) |
else if ( (mid = MAX(aid,bid)) <= O_R || mid == O_QUOTE ) |
(*afunc[mid].mul)(vl,a,b,r); |
(*afunc[mid].mul)(vl,a,b,r); |
else { |
else { |
switch ( aid ) { |
switch ( aid ) { |
case O_N: case O_P: case O_NBP: |
case O_N: case O_P: case O_NBP: |
(*afunc[mid].mul)(vl,a,b,r); |
(*afunc[mid].mul)(vl,a,b,r); |
break; |
break; |
case O_R: |
case O_R: |
/* rat * something; bid > O_R */ |
/* rat * something; bid > O_R */ |
if ( bid == O_VECT || bid == O_MAT || bid == O_DP || bid == O_DPM ) |
if ( bid == O_VECT || bid == O_MAT || bid == O_DP || bid == O_DPM ) |
(*afunc[mid].mul)(vl,a,b,r); |
(*afunc[mid].mul)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
break; |
break; |
case O_MAT: |
case O_MAT: |
if ( bid <= O_R || bid == O_VECT || bid == O_DP ) |
if ( bid <= O_R || bid == O_VECT || bid == O_DP ) |
(*afunc[O_MAT].mul)(vl,a,b,r); |
(*afunc[O_MAT].mul)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
break; |
break; |
case O_VECT: |
case O_VECT: |
if ( bid <= O_R || bid == O_DP ) |
if ( bid <= O_R || bid == O_DP ) |
(*afunc[O_VECT].mul)(vl,a,b,r); |
(*afunc[O_VECT].mul)(vl,a,b,r); |
else if ( bid == O_MAT ) |
else if ( bid == O_MAT ) |
(*afunc[O_MAT].mul)(vl,a,b,r); |
(*afunc[O_MAT].mul)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
break; |
break; |
case O_DP: |
case O_DP: |
if ( bid <= O_R ) |
if ( bid <= O_R ) |
(*afunc[O_DP].mul)(vl,a,b,r); |
(*afunc[O_DP].mul)(vl,a,b,r); |
else if ( bid == O_MAT || bid == O_VECT || bid == O_DPV || bid == O_DPM ) |
else if ( bid == O_MAT || bid == O_VECT || bid == O_DPV || bid == O_DPM ) |
(*afunc[bid].mul)(vl,a,b,r); |
(*afunc[bid].mul)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
break; |
break; |
case O_IMAT: |
case O_IMAT: |
(*afunc[O_IMAT].mul)(vl,a,b,r); |
(*afunc[O_IMAT].mul)(vl,a,b,r); |
break; |
break; |
default: |
default: |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
break; |
break; |
} |
} |
} |
} |
} |
} |
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void arf_div(VL vl,Obj a,Obj b,Obj *r) |
void arf_div(VL vl,Obj a,Obj b,Obj *r) |
{ |
{ |
int mid; |
int mid; |
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if ( !b ) |
if ( !b ) |
error("div : division by 0"); |
error("div : division by 0"); |
if ( !a ) |
if ( !a ) |
*r = 0; |
*r = 0; |
else if ( (OID(a) == OID(b)) ) |
else if ( (OID(a) == OID(b)) ) |
(*(afunc[OID(a)].div))(vl,a,b,r); |
(*(afunc[OID(a)].div))(vl,a,b,r); |
else if ( (mid = MAX(OID(a),OID(b))) <= O_R || |
else if ( (mid = MAX(OID(a),OID(b))) <= O_R || |
(mid == O_MAT) || (mid == O_VECT) || (mid == O_DP) || mid == O_QUOTE ) |
(mid == O_MAT) || (mid == O_VECT) || (mid == O_DP) || mid == O_QUOTE ) |
(*afunc[mid].div)(vl,a,b,r); |
(*afunc[mid].div)(vl,a,b,r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
} |
} |
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void arf_remain(VL vl,Obj a,Obj b,Obj *r) |
void arf_remain(VL vl,Obj a,Obj b,Obj *r) |
{ |
{ |
if ( !b ) |
if ( !b ) |
error("rem : division by 0"); |
error("rem : division by 0"); |
else if ( !a ) |
else if ( !a ) |
*r = 0; |
*r = 0; |
else if ( MAX(OID(a),OID(b)) <= O_P ) |
else if ( MAX(OID(a),OID(b)) <= O_P ) |
cmp((Q)b,(P)a,(P *)r); |
cmp((Q)b,(P)a,(P *)r); |
else |
else |
notdef(vl,a,b,r); |
notdef(vl,a,b,r); |
} |
} |
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int allow_laurent; |
int allow_laurent; |
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void arf_pwr(VL vl,Obj a,Obj e,Obj *r) |
void arf_pwr(VL vl,Obj a,Obj e,Obj *r) |
{ |
{ |
R t; |
R t; |
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if ( !a ) { |
if ( !a ) { |
if ( !e ) |
if ( !e ) |
*r = (pointer)ONE; |
*r = (pointer)ONE; |
else if ( RATN(e) && SGN((Q)e)>0 ) |
else if ( RATN(e) && SGN((Q)e)>0 ) |
*r = 0; |
*r = 0; |
else |
else |
mkpow(vl,a,e,r); |
mkpow(vl,a,e,r); |
} else if ( !e ) { |
} else if ( !e ) { |
if ( OID(a) == O_MAT ) |
if ( OID(a) == O_MAT ) |
(*(afunc[O_MAT].pwr))(vl,a,e,r); |
(*(afunc[O_MAT].pwr))(vl,a,e,r); |
else |
else |
*r = (pointer)ONE; |
*r = (pointer)ONE; |
} else if ( OID(a) == O_QUOTE || OID(e) == O_QUOTE ) |
} else if ( OID(a) == O_QUOTE || OID(e) == O_QUOTE ) |
(*(afunc[O_QUOTE].pwr))(vl,a,e,r); |
(*(afunc[O_QUOTE].pwr))(vl,a,e,r); |
else if ( (OID(e) <= O_N) && INT(e) ) { |
else if ( (OID(e) <= O_N) && INT(e) ) { |
if ( (OID(a) == O_P) && (SGN((Q)e) < 0) ) { |
if ( (OID(a) == O_P) && (SGN((Q)e) < 0) ) { |
if ( allow_laurent ) |
if ( allow_laurent ) |
(*(afunc[O_P].pwr))(vl,a,e,r); |
(*(afunc[O_P].pwr))(vl,a,e,r); |
else { |
else { |
MKRAT((P)a,(P)ONE,1,t); |
MKRAT((P)a,(P)ONE,1,t); |
(*(afunc[O_R].pwr))(vl,t,e,r); |
(*(afunc[O_R].pwr))(vl,t,e,r); |
} |
} |
} else |
} else |
(*(afunc[OID(a)].pwr))(vl,a,e,r); |
(*(afunc[OID(a)].pwr))(vl,a,e,r); |
} else if ( (OID(e) <= O_N) && RATN(e) ) { |
} else if ( (OID(e) <= O_N) && RATN(e) ) { |
if ( (OID(a) == O_P) && allow_laurent ) |
if ( (OID(a) == O_P) && allow_laurent ) |
(*(afunc[O_P].pwr))(vl,a,e,r); |
(*(afunc[O_P].pwr))(vl,a,e,r); |
else if ( OID(a) <= O_R ) |
else if ( OID(a) <= O_R ) |
mkpow(vl,a,e,r); |
mkpow(vl,a,e,r); |
else |
else |
notdef(vl,a,e,r); |
notdef(vl,a,e,r); |
} else if ( OID(a) <= O_R ) |
} else if ( OID(a) <= O_R ) |
mkpow(vl,a,e,r); |
mkpow(vl,a,e,r); |
else |
else |
notdef(vl,a,e,r); |
notdef(vl,a,e,r); |
} |
} |
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void arf_chsgn(Obj a,Obj *r) |
void arf_chsgn(Obj a,Obj *r) |
{ |
{ |
if ( !a ) |
if ( !a ) |
*r = 0; |
*r = 0; |
else |
else |
(*(afunc[OID(a)].chsgn))(a,r); |
(*(afunc[OID(a)].chsgn))(a,r); |
} |
} |
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int arf_comp(VL vl,Obj a,Obj b) |
int arf_comp(VL vl,Obj a,Obj b) |
{ |
{ |
if ( !a ) |
if ( !a ) |
if ( !b ) |
if ( !b ) |
return 0; |
return 0; |
else |
else |
return (*afunc[OID(b)].comp)(vl,a,b); |
return (*afunc[OID(b)].comp)(vl,a,b); |
else if ( !b ) |
else if ( !b ) |
return (*afunc[OID(a)].comp)(vl,a,b); |
return (*afunc[OID(a)].comp)(vl,a,b); |
else if ( OID(a) != OID(b) ) |
else if ( OID(a) != OID(b) ) |
return OID(a)>OID(b) ? 1 : -1; |
return OID(a)>OID(b) ? 1 : -1; |
else |
else |
return (*afunc[OID(a)].comp)(vl,a,b); |
return (*afunc[OID(a)].comp)(vl,a,b); |
} |
} |
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int complist(VL vl,LIST a,LIST b) |
int complist(VL vl,LIST a,LIST b) |
{ |
{ |
int t; |
int t; |
NODE an,bn; |
NODE an,bn; |
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if ( !a ) |
if ( !a ) |
if ( !b ) |
if ( !b ) |
return 0; |
return 0; |
else |
else |
return -1; |
return -1; |
else if ( !b ) |
else if ( !b ) |
return 1; |
return 1; |
for ( an = BDY(a), bn = BDY(b); an && bn; an = NEXT(an), bn = NEXT(bn) ); |
for ( an = BDY(a), bn = BDY(b); an && bn; an = NEXT(an), bn = NEXT(bn) ); |
if ( an && !bn ) |
if ( an && !bn ) |
return 1; |
return 1; |
else if ( !an && bn ) |
else if ( !an && bn ) |
return -1; |
return -1; |
for ( an = BDY(a), bn = BDY(b); an; an = NEXT(an), bn = NEXT(bn) ) |
for ( an = BDY(a), bn = BDY(b); an; an = NEXT(an), bn = NEXT(bn) ) |
if ( t = arf_comp(vl,BDY(an),BDY(bn)) ) |
if ( t = arf_comp(vl,BDY(an),BDY(bn)) ) |
return t; |
return t; |
return 0; |
return 0; |
} |
} |
|
|
int compvoid(VL vl,Obj a,Obj b) |
int compvoid(VL vl,Obj a,Obj b) |
{ |
{ |
if ( !a ) |
if ( !a ) |
if ( !b ) return 0; |
if ( !b ) return 0; |
else return -1; |
else return -1; |
else if ( !b ) |
else if ( !b ) |
return 1; |
return 1; |
else if ( OID(a) > OID(b) ) return 1; |
else if ( OID(a) > OID(b) ) return 1; |
else if ( OID(b) < OID(a) ) return -1; |
else if ( OID(b) < OID(a) ) return -1; |
else return 0; |
else return 0; |
} |
} |