1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
subroutine indxg(il,siz,ilr,mi,mx,lw,iopt1)
c!Purpose
c Converts a scilab index variable to a vector of indices
c!Calling sequence
c subroutine indxg(il,siz,ilr,mi,lw,iopt)
c il : beginning of a a scilab variable structure.
c siz : integer, matrix size, used for implicits index descriptions
c ilr : adress of first elment of resulting vector of indices in
c istk
c mi : size of resulting vector of indices
c mx : maximum value of resulting vector of indices
c lw : pointer to free space in stk (modified by execution)
c iopt1 : flag with decimal form n+10*i
c if n==0 null indices are accepted
c else null indices are rejected
c if i==0
c implicit indices ":" gives a vector istk(ilr)=1:siz, mi=siz,mx=siz
c else
c implicit indice ":" gives mi=-1,mx=siz
c!
c Copyright INRIA
include '../stack.h'
integer siz,iopt1,iopt
double precision e1,v(3)
integer iadr,sadr
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
c
impl=iopt1/10
iopt=iopt1-10*impl
c
if(istk(il).lt.0) il=istk(il+1)
if(istk(il).eq.1) then
c Index is a vector of scalars
m=istk(il+1)
n=istk(il+2)
if(istk(il+3).ne.0) then
call error(21)
return
endif
if(m.ge.1) then
c . general case
l=sadr(il+4)
ilr=iadr(lw)
lw=sadr(ilr+m*n)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
call entier(m*n,stk(l),istk(ilr))
mi=m*n
mx=0
do 05 i=0,m*n-1
if(iopt.eq.1.and.istk(ilr+i).le.0) then
call error(21)
return
else
mx=max(mx,istk(ilr+i))
endif
05 continue
elseif(m.eq.0) then
c . index is []
ilr=il
mi=0
mx=0
elseif(m.eq.-1) then
c . index is :
ilr=iadr(lw)
if(impl.eq.0) then
if(siz.gt.0) then
lw=sadr(ilr+siz)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
do 10 i=1,siz
istk(ilr-1+i)=i
10 continue
endif
mi=siz
else
mi=-1
endif
mx=siz
endif
elseif (istk(il).eq.2) then
c . Index is a vector of polynomial
m=istk(il+1)
n=istk(il+2)
if(istk(il+3).ne.0) then
call error(21)
return
endif
mi=m*n
l=sadr(il+9+mi)
lr=lw
ilr=iadr(lr)
lw=lr+mi
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
c . evaluate it for siz
e1=siz
call ddmpev(stk(l),istk(il+8),1,e1,stk(lr),1,1,mi)
call entier(mi,stk(lr),istk(ilr))
lw=sadr(ilr+mi)
mx=0
do 15 i=0,mi-1
if(istk(ilr+i).le.0) then
call error(21)
return
else
mx=max(mx,istk(ilr+i))
endif
15 continue
elseif (istk(il).eq.129) then
c . Index is an implicit polynomial vector (beg:step:end)
e1=siz
l=sadr(il+12)
call ddmpev(stk(l),istk(il+8),1,e1,v,1,1,3)
ideb=v(1)
ipas=v(2)
ifin=v(3)
if(ipas.eq.0.or.(ifin-ideb)*ipas.lt.0) then
mi=0
mx=0
else
if(ipas.lt.0.and.ifin.le.0.or.ipas.gt.0.and.ideb.le.0) then
call error(21)
return
endif
mi=int((abs(ifin-ideb)+1)/abs(ipas))
ilr=iadr(lw)
lw=sadr(ilr+mi+1)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
k=0
do 20 i=ideb,ifin,ipas
istk(ilr+k)=i
k=k+1
20 continue
mi=k
if(ipas.gt.0) then
mx=istk(ilr-1+mi)
else
mx=istk(ilr)
endif
endif
elseif (istk(il).eq.4) then
c . index is a boolean vector
m=istk(il+1)
n=istk(il+2)
c if(m*n.ne.siz) then
c call error(21)
c return
c endif
ilr=iadr(lw)
lw=sadr(ilr+m*n)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
mi=0
do 30 i=1,m*n
if(istk(il+2+i).eq.1) then
istk(ilr+mi)=i
mi=mi+1
endif
30 continue
if(mi.eq.0) then
mx=0
else
mx=istk(ilr-1+mi)
endif
lw=sadr(ilr+mi)
elseif (istk(il).eq.6) then
c . index is a boolean vector
m=istk(il+1)
n=istk(il+2)
nel=istk(il+4)
ir=il+5
ic=ir+m
ilr=iadr(lw)
ilw=ilr+nel
mx=nel
mi=0
if (nel.gt.0) then
lw=sadr(ilw+nel)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
do 35 i=0,m-1
if(istk(ir).gt.0) then
do 31 kk=0,istk(ir)-1
istk(ilr+mi)=1+i+(istk(ic+kk)-1)*m
mi=mi+1
31 continue
ic=ic+istk(ir)
endif
ir=ir+1
35 continue
call isort1(istk(ilr),nel,istk(ilw),1)
endif
lw=sadr(ilr+nel)
else
call error(21)
return
endif
return
end
subroutine indxgc(il,siz,ilr,mi,mx,lw)
c!Purpose
c Converts a scilab index variable to the complementary vector of indices
c!Calling sequence
c subroutine indxg(il,siz,ilr,mi,lw)
c il : beginning of a a scilab variable structure.
c siz : integer, matrix size, used for implicits index descriptions
c ilr : adress of first elment of resulting vector of indices in
c istk
c mi : size of resulting vector of indices
c mx : maximum value of resulting vector of indices
c lw : pointer to free space in stk (modified by execution)
c!
include '../stack.h'
integer siz
logical test
integer iadr,sadr
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
call indxg(il,siz,ilr,mi,mx,lw,1)
if(err.gt.0) return
ilc=iadr(lw)
lw=sadr(ilc+siz)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
if(mi.eq.0) then
do 05 i=1,siz
istk(ilc+i-1)=i
05 continue
mx=istk(ilc+siz-1)
mi=siz
else
c computes complement
k=0
do 20 i=1,siz
test=.true.
do 10 j=1,mi
test=test.and.istk(ilr-1+j).ne.i
10 continue
if(test) then
istk(ilc+k)=i
k=k+1
endif
20 continue
mx=istk(ilc-1+k)
mi=k
endif
ilr=ilc
c call icopy(mi,istk(ilc),1,istk(ilr),1)
lw=sadr(ilr+mi)
return
end
|
