1 /* packac.f -- translated by f2c (version 19980913).
2 You must link the resulting object file with the libraries:
3 -lf2c -lm (in that order)
4 */
5
6 #include "f2c.h"
7
8 /* $Procedure PACKAC ( Pack a character array ) */
packac_(char * in,integer * pack,integer * npack,integer * maxout,integer * nout,char * out,ftnlen in_len,ftnlen out_len)9 /* Subroutine */ int packac_(char *in, integer *pack, integer *npack, integer
10 *maxout, integer *nout, char *out, ftnlen in_len, ftnlen out_len)
11 {
12 /* System generated locals */
13 integer i__1;
14
15 /* Builtin functions */
16 /* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);
17
18 /* Local variables */
19 integer i__;
20 extern /* Subroutine */ int chkin_(char *, ftnlen), sigerr_(char *,
21 ftnlen), chkout_(char *, ftnlen), setmsg_(char *, ftnlen),
22 errint_(char *, integer *, ftnlen);
23 extern logical return_(void);
24
25 /* $ Abstract */
26
27 /* Pack the contents of a CHARACTER array. That is, take */
28 /* a set of arbitrarily spaced elements from an input array, */
29 /* and make them adjacent elements in an output array. */
30
31 /* $ Disclaimer */
32
33 /* THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE */
34 /* CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S. */
35 /* GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE */
36 /* ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE */
37 /* PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS" */
38 /* TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY */
39 /* WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A */
40 /* PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC */
41 /* SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE */
42 /* SOFTWARE AND RELATED MATERIALS, HOWEVER USED. */
43
44 /* IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA */
45 /* BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT */
46 /* LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, */
47 /* INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS, */
48 /* REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE */
49 /* REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY. */
50
51 /* RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF */
52 /* THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY */
53 /* CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE */
54 /* ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE. */
55
56 /* $ Required_Reading */
57
58 /* None. */
59
60 /* $ Keywords */
61
62 /* ARRAY */
63 /* ASSIGNMENT */
64 /* UTILITY */
65
66 /* $ Declarations */
67 /* $ Brief_I/O */
68
69 /* VARIABLE I/O DESCRIPTION */
70 /* -------- --- -------------------------------------------------- */
71 /* IN I Input array. */
72 /* PACK I Indices of elements to be packed. */
73 /* NPACK I Number of indices. */
74 /* MAXOUT I Maximum number of elements in the output array. */
75 /* NOUT O Number of elements in the output array. */
76 /* OUT O Output array. */
77
78 /* $ Detailed_Input */
79
80 /* IN is the input array. */
81
82 /* PACK is the set of elements to be packed into the output */
83 /* array. PACK(i) is the index of the element in the */
84 /* input array that is to become the i'th element of */
85 /* the output array. */
86
87 /* NPACK is the number of elements to be packed into the */
88 /* output array. */
89
90 /* MAXOUT is the maximum number of elements to be packed */
91 /* into the output array. If NPACK is larger than */
92 /* MAXOUT, the extra items are ignored. */
93
94 /* $ Detailed_Output */
95
96 /* NOUT is the number of elements in the output array. */
97
98 /* OUT is the output array. This array contains up to */
99 /* MAXOUT elements from the input array, located */
100 /* in the first NOUT elements of the array. */
101
102 /* $ Parameters */
103
104 /* None. */
105
106 /* $ Exceptions */
107
108 /* If an element in the PACK array is less than 1, the error */
109 /* SPICE(INVALIDINDEX) is signalled. */
110
111 /* $ Files */
112
113 /* None. */
114
115 /* $ Particulars */
116
117 /* The indicated elements are moved from their current locations */
118 /* in the input array to consecutive positions in the output array. */
119
120 /* OUT( 1) = IN(PACK( 1)) */
121 /* OUT( 2) = IN(PACK( 2)) */
122 /* . */
123 /* . */
124 /* OUT(NOUT) = IN(PACK(NOUT)) */
125
126 /* NOUT is either NPACK or MAXOUT, whichever is smaller. */
127
128 /* $ Examples */
129
130 /* The most common use for this routine is to remove unwanted items */
131 /* from an array or set of arrays. For example, suppose that the */
132 /* arrays NAME, CODE, RADIUS and MASS contain the names, NAIF */
133 /* integer ID codes, radii, and masses of a set of NSAT satellites. */
134 /* Suppose further that the user selects a subset of the original */
135 /* set of satellites from a menu of some sort. Let the indices of */
136 /* these satellites be the NSEL elements of the array SEL. The */
137 /* following sequence would remove the names, codes, etc., of the */
138 /* unselected satellites from the arrays. */
139
140 /* CALL PACKAC ( NAME, SEL, NSEL, NSAT, NOUT, NAME2 ) */
141 /* CALL PACKAI ( CODE, SEL, NSEL, NSAT, NOUT, CODE2 ) */
142 /* CALL PACKAD ( RADIUS, SEL, NSEL, NSAT, NOUT, RADIUS2 ) */
143 /* CALL PACKAD ( MASS, SEL, NSEL, NSAT, NOUT, MASS2 ) */
144
145 /* In the example above, suppose that NAME and PACK contain */
146 /* the following: */
147
148 /* NAME = 'MIMAS' PACK = 2, 4, 6, 7 */
149 /* 'ENCELADUS' */
150 /* 'TETHYS' */
151 /* 'DIONE' */
152 /* 'RHEA' */
153 /* 'TITAN' */
154 /* 'HYPERION' */
155 /* 'IAPETUS' */
156 /* 'PHOEBE' */
157
158 /* Then, following the call to PACKAC, NOUT and NAME2 contain */
159 /* the following: */
160
161 /* NOUT = 4 NAME2 = 'ENCELADUS' */
162 /* 'DIONE' */
163 /* 'TITAN' */
164 /* 'HYPERION' */
165
166 /* $ Restrictions */
167
168 /* None. */
169
170 /* $ Literature_References */
171
172 /* None. */
173
174 /* $ Author_and_Institution */
175
176 /* H.A. Neilan (JPL) */
177 /* W.L. Taber (JPL) */
178 /* I.M. Underwood (JPL) */
179
180 /* $ Version */
181
182 /* - SPICELIB Version 1.0.2, 23-APR-2010 (NJB) */
183
184 /* Header correction: assertions that the output */
185 /* can overwrite the input have been removed. */
186
187 /* - SPICELIB Version 1.0.1, 10-MAR-1992 (WLT) */
188
189 /* Comment section for permuted index source lines was added */
190 /* following the header. */
191
192 /* - SPICELIB Version 1.0.0, 31-JAN-1990 (WLT) (IMU) */
193
194 /* -& */
195 /* $ Index_Entries */
196
197 /* pack a character array */
198
199 /* -& */
200 /* $ Revisions */
201
202 /* - Beta Version 2.0.0, 4-JAN-1989 (HAN) */
203
204 /* Error handling was added to detect array indices that are */
205 /* out of bound. If any element contained in the PACK array is */
206 /* less than one, an error is signalled, and the output array is */
207 /* not packed. */
208
209 /* -& */
210
211 /* Spicelib functions */
212
213
214
215 /* Local variables */
216
217
218 /* Standard SPICE error handling. */
219
220 if (return_()) {
221 return 0;
222 } else {
223 chkin_("PACKAC", (ftnlen)6);
224 }
225
226 /* First, determine how many items to transfer. */
227
228 *nout = min(*npack,*maxout);
229
230 /* Check to see if PACK contains valid array indices. */
231
232 i__1 = *nout;
233 for (i__ = 1; i__ <= i__1; ++i__) {
234 if (pack[i__ - 1] < 1) {
235 setmsg_("Element number * contains index *.", (ftnlen)34);
236 errint_("*", &i__, (ftnlen)1);
237 errint_("*", &pack[i__ - 1], (ftnlen)1);
238 sigerr_("SPICE(INVALIDINDEX)", (ftnlen)19);
239 chkout_("PACKAC", (ftnlen)6);
240 return 0;
241 }
242 }
243
244 /* Transfer them. Just like it says in the header. */
245
246 i__1 = *nout;
247 for (i__ = 1; i__ <= i__1; ++i__) {
248 s_copy(out + (i__ - 1) * out_len, in + (pack[i__ - 1] - 1) * in_len,
249 out_len, in_len);
250 }
251 chkout_("PACKAC", (ftnlen)6);
252 return 0;
253 } /* packac_ */
254
255