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
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
|
/* This is a test for the NCEPLIBS-g2c project. This test is for
* the complex compression functions.
*
* Ed Hartnett 11/2/21
*/
#include "grib2_int.h"
#include <stdio.h>
#include <stdlib.h>
#define DATA_LEN 4
#define PACKED_LEN 200
/* Prototypes we are testing. */
int comunpack(unsigned char *cpack, g2int lensec, g2int idrsnum,
g2int *idrstmpl, g2int ndpts, float *fld);
void cmplxpack(float *fld, g2int ndpts, g2int idrsnum, g2int *idrstmpl,
unsigned char *cpack, g2int *lcpack);
int
main()
{
printf("Testing com functions.\n");
printf("Testing compack()/comunpack() with table 5.2...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-2.shtml
* for the template meaning. */
g2int idrstmpl[16] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
0, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8 /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
};
g2int idrsnum = 2;
int i;
/* Pack the data. */
compack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing compack()/comunpack() with table 5.3...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-3.shtml
* for the template meaning. */
g2int idrstmpl[18] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
0, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8, /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
1, /* Order of spatial difference (see Code Table 5.6) */
0 /* Number of octets required in the data section to specify extra descriptors needed for spatial differencing (octets 6-ww in data template 7.3) */
};
g2int idrsnum = 3;
int i;
/* Pack the data. */
compack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing misspack()/comunpack() calls...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
g2int old_int_val;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-2.shtml
* for the template meaning. */
g2int idrstmpl[16] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
1, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8 /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
};
g2int idrsnum = 2;
int i;
/* Change the missing value management field to something invalid. */
old_int_val = idrstmpl[6];
idrstmpl[6] = 3;
/* This won't work, bad missing value management value. */
misspack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
if (lcpack != -1)
return G2C_ERROR;
/* Fix the missing value management field. */
idrstmpl[6] = old_int_val;
/* Pack the data. */
misspack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing misspack()/comunpack() calls with missopt = 2, no binary scaling...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-2.shtml
* for the template meaning. */
g2int idrstmpl[16] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
0, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
2, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8 /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
};
g2int idrsnum = 2;
int i;
/* Pack the data. */
misspack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing misspack()/comunpack() with table 5.3...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-3.shtml
* for the template meaning. */
g2int idrstmpl[18] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
1, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8, /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
1, /* Order of spatial difference (see Code Table 5.6) */
0 /* Number of octets required in the data section to specify extra descriptors needed for spatial differencing (octets 6-ww in data template 7.3) */
};
g2int idrsnum = 3;
int i;
/* Pack the data. */
misspack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing misspack()/comunpack() with table 5.3 with second order spacial difference and different data...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {0.0, 0.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-3.shtml
* for the template meaning. */
g2int idrstmpl[18] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
1, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8, /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
2, /* Order of spatial difference (see Code Table 5.6) */
0 /* Number of octets required in the data section to specify extra descriptors needed for spatial differencing (octets 6-ww in data template 7.3) */
};
g2int idrsnum = 3;
int i;
/* Pack the data. */
misspack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing cmplxpack()/comunpack() calls (expect and ignore error messages)...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
g2int old_int_val;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-2.shtml
* for the template meaning. */
g2int idrstmpl[16] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
1, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8 /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
};
g2int idrsnum = 2;
int i;
/* Try with wrong missing value management flag. */
old_int_val = idrstmpl[6];
idrstmpl[6] = 3;
cmplxpack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
if (lcpack != -1)
return G2C_ERROR;
idrstmpl[6] = old_int_val;
/* Pack the data. */
cmplxpack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing cmplxpack()/comunpack() calls without missing value management...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {1.0, 2.0, 3.0, 0.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-2.shtml
* for the template meaning. */
g2int idrstmpl[16] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
0, /* Missing value management used (see Code Table 5.5) */
0, /* Primary missing value substitute */
0, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8 /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
};
g2int idrsnum = 2;
int i;
/* Pack the data. */
cmplxpack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("Testing cmplxpack()/comunpack() calls (expect and ignore error messages)...");
{
g2int len = PACKED_LEN, ndpts = DATA_LEN;
float fld[DATA_LEN] = {2.0, 2.0, 2.0, 2.0};
float fld_in[DATA_LEN];
unsigned char cpack[PACKED_LEN];
g2int lcpack = PACKED_LEN;
g2int old_int_val;
/* See
* https://www.nco.ncep.noaa.gov/pmb/docs/grib2/grib2_doc/grib2_temp5-2.shtml
* for the template meaning. */
g2int idrstmpl[16] = {
0, /* reference value (R) (IEEE 32-bit floating-point value) */
1, /* Binary scale factor (E) */
1, /* Decimal scale factor (D) */
8, /* Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing */
0, /* Type of original field values (see Code Table 5.1) */
0, /* Group splitting method used (see Code Table 5.4) */
1, /* Missing value management used (see Code Table 5.5) */
2, /* Primary missing value substitute */
3, /* Secondary missing value substitute */
1, /* NG ― number of groups of data values into which field is split */
16, /* Reference for group widths (see Note 12) */
8, /* Number of bits used for the group widths (after the reference value in octet 36 has been removed) */
4, /* Reference for group lengths (see Note 13) */
0, /* Length increment for the group lengths (see Note 14) */
0, /* True length of last group */
8 /* Number of bits used for the scaled group lengths (after subtraction of the reference value given in octets 38-41 and division by the length increment given in octet 42) */
};
g2int idrsnum = 2;
int i;
/* Try with wrong missing value management flag. */
old_int_val = idrstmpl[6];
idrstmpl[6] = 3;
cmplxpack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
if (lcpack != -1)
return G2C_ERROR;
idrstmpl[6] = old_int_val;
/* Pack the data. */
cmplxpack(fld, ndpts, idrsnum, idrstmpl, cpack, &lcpack);
/* Unpack the data. */
if (comunpack(cpack, len, idrsnum, idrstmpl, ndpts, fld_in))
return G2C_ERROR;
for (i = 0; i < DATA_LEN; i++)
{
/* printf("%g %g\n", fld[i], fld_in[i]); */
if (fld[i] != fld_in[i])
return G2C_ERROR;
}
}
printf("ok!\n");
printf("SUCCESS!\n");
return 0;
}
|
