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
|
subroutine readmat(name,m,n,scimat)
c see creadmat
c ==========================================
c Copyright INRIA
double precision scimat(m,*)
integer m,n
logical creadmat,j
character*(*) name
j=creadmat(name,m,n,scimat)
return
end
logical function creadmat(name,m,n,scimat)
c ==========================================
c!purpose
c readmat reads vector/matrix in scilab's internal stack
c
c!calling sequence
c logic=creadmat('matrixname',m,n,scimat)
c
c matrixname: character string; name of the scilab variable.
c m: number of rows (output of readmat)
c n: number of columns (output of readmat)
c scimat: matrix entries stored columnwise (output of readmat)
c
c Example of use:
c Amat is a real 2 x 3 scilab matrix
c your subroutine should be as follows:
c
c subroutine mysubr(...)
c
c ...
c call readmat('Amat',m,n,scimat)
c => m=3 , n=2, and scimat(1)=Amat(1,1)
c scimat(2)=Amat(2,1)
c scimat(3)=Amat(3,1)
c scimat(4)=Amat(1,2) ...
c scimat(5)=Amat(3,2)
c!
c ==========================================
integer m,n
logical getrmat
character*(*) name
double precision scimat(m,*)
c
include '../stack.h'
integer il,it,l,id(nsiz)
creadmat=.false.
call str2name(name,id)
c read : from scilab stack -> fortran variable
c -------
fin=-1
call stackg(id)
if (err .gt. 0) return
if (fin .eq. 0) then
call putid(ids(1,pt+1),id)
call error(4)
return
endif
if(.not.getrmat('creadmat',fin,fin,m,n,l))return
call dmcopy(stk(l),m,scimat,m,m,n)
creadmat=.true.
return
end
logical function cwritemat(name,m,n,mat)
c =========================================
c!purpose
c cwritemat writes vector/matrix in scilab's internal stack
c
c!calling sequence
c logic=cwritemat('matrixname'//char(0),m,n,mat)
c
c name: character string; name of the scilab variable ( null terminated)
c m: number of rows
c n: number of columns
c mat: matrix entries stored columnwise in Scilab object
c call readmat('Amat',m,n,scimat)
c!
c =========================================
character*(*) name
double precision mat(*)
include '../stack.h'
integer id(nsiz),m,n,lr,lc,srhs,l4
logical cremat
cwritemat=.false.
call str2name(name,id)
top=top+1
if(.not.cremat('cwritemat',top,0,m,n,lr,lc)) return
call dcopy(m*n,mat,1,stk(lr),1)
srhs=rhs
rhs=0
l4=lct(4)
lct(4)=-1
call stackp(id,0)
lct(4)=l4
top=top-1
rhs=srhs
if(err.gt.0) return
cwritemat=.true.
return
end
subroutine readchain(name,itslen,chai)
c see creadchain
c ==========================================
character*(*) chai,name
logical creadchain,j
j=creadchain(name,itslen,chai)
return
end
logical function creadchain(name,itslen,chai)
c ==========================================
c!but
c this routine reads a string in scilab's memory
c and store it into chai
c!calling sequence
c
c integer itslen
c character*(*) chai,name
c
c name : character string = name of scilab variable (input)
c chai : chain to be read (output)
c null terminated
c itslen : (input) maximum number of character that can ne stored
c in chain
c (output) number of copied characters into chai
c
c
c if Scilab variable x='qwert' exists
c character ch*(10)
c l=10
c logic= creadchain('x',l,ch) returns l=5 and ch='qwert'
c
c ==========================================
character*(*) chai,name
include '../stack.h'
integer id(nsiz),m1,n1,lr1,nlr1
logical getsmat
iadr(l)=l+l-1
creadchain=.false.
call str2name(name,id)
fin=-1
call stackg(id)
if(err.gt.0) return
if(fin.eq.0) then
call putid(ids(1,pt+1),id)
call error(4)
return
endif
if(.not.getsmat('creadchain',fin,fin,m1,n1,1,1,lr1,nlr1))
$ return
if( m1*n1.ne.1) then
buf = 'creadchain' // ': argument must be a string '
call error(999)
return
endif
itslen=min(itslen-1,nlr1)
call cvstr(itslen,istk(lr1),chai,1)
chai(itslen+1:itslen+1)=char(0)
creadchain=.true.
end
logical function cwritechain(name,m,chai)
c =========================================
c!purpose
c cwritemat writes vector/matrix in scilab's internal stack
c
c!calling sequence
c logic=cwritemat('matrixname'//char(0),m,n,mat)
c
c name: character string; name of the scilab variable ( null terminated)
c m: number of rows
c n: number of columns
c mat: matrix entries stored columnwise in Scilab object
c call readmat('Amat',m,n,scimat)
c!
c =========================================
integer m
character*(*) name,chai
include '../stack.h'
integer id(nsiz),nlr,lr,srhs,l4
logical cresmat2
cwritechain=.false.
call str2name(name,id)
top=top+1
if(.not.cresmat2('cwritechain',top,m,lr)) return
call cvstr(m,istk(lr),chai,0)
srhs=rhs
rhs=0
l4=lct(4)
lct(4)=-1
call stackp(id,0)
lct(4)=l4
top=top-1
rhs=srhs
if(err.gt.0) return
cwritechain=.true.
return
end
subroutine matptr(name,m,n,lp)
c ==========================================
c see cmatptr
c ==========================================
character*(*) name
integer m,n,lp
logical i,cmatptr
i=cmatptr(name,m,n,lp)
return
end
logical function cmatptr(name,m,n,lp)
c ==========================================
c!purpose
c matptr returns the adress of real matrix "name"
c in scilab's internal stack
c m=number of rows
c n=number of columns
c stk(lp),stk(lp+1),...,stk(lp+m*n-1)= entries (columnwise)
c If matrix "name" not in Scilab stack, returns m=n=-1.
c
c Example of use:
c Amat is a real 2 x 3 scilab matrix
c your subroutine should be as follows:
c
c subroutine mysubr(...)
c include '../stack.h'
c ...
c logic= cmatptr('Amat',m,n,lp)
c => m=3 , n=2, and stk(lp)=Amat(1,1)
c stk(lp+1)=Amat(2,1)
c stk(lp+2)=Amat(3,1)
c stk(lp+3)=Amat(1,2) ...
c stk(lp+5)=Amat(3,2)
c see example in fydot.f file
c see also readmat.f, matz.f
c ==========================================
character*(*) name
include '../stack.h'
integer id(nsiz)
logical getrmat
cmatptr=.false.
c ---- get the id
call str2name(name,id)
c ---- get the position in fin
fin=-1
call stackg(id)
if (fin .eq. 0) then
call putid(ids(1,pt+1),id)
call error(4)
m=-1
n=-1
return
endif
c ---- get data
if(.not.getrmat('creadmat',fin,fin,m,n,lp))return
cmatptr=.true.
end
subroutine str2name(name,id)
c =====================
c string conversion to Scilab ID
c Warning : the character name is null terminated
c and len(name) is not used
c since it can be wrong (ex when name is transmited
c by fort (intfort : function )
c =====================
include '../stack.h'
integer id(nsiz),lon
character*(*) name
lon = 0
do 100 i=1,nlgh
if(name(i:i).eq.char(0)) goto 200
lon=lon+1
100 continue
200 continue
call cvname(id,name(1:lon),0)
return
end
|
