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
|
/*** tzconv.c -- convert matlab dates between timezones
*
* Copyright (C) 2013-2024 Sebastian Freundt
*
* Author: Sebastian Freundt <freundt@ga-group.nl>
*
* This file is part of dateutils.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the author nor the names of any contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
***/
#if defined HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */
#include <stdlib.h>
#include <stdint.h>
#include <math.h>
/* matlab stuff */
#if defined HAVE_OCTAVE_MEX_H
# include <octave/mex.h>
#else /* !HAVE_OCTAVE_MEX_H */
# include <mex.h>
#endif /* HAVE_OCTAVE_MEX_H */
/* our stuff */
#include "tzraw.h"
/* see tzconv.m for details */
static zif_t
find_zone(const mxArray *zstr)
{
char *zone = mxArrayToString(zstr);
zif_t res;
res = zif_open(zone);
if (zone != NULL) {
mxFree(zone);
}
return res;
}
void
mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
zif_t fromz;
zif_t toz;
if (nrhs != 3 || nlhs > 1) {
mexErrMsgTxt("invalid usage, see `help tzconv'\n");
return;
}
/* find zones */
if ((fromz = find_zone(prhs[1])) == NULL) {
mexErrMsgTxt("cannot open from zone\n");
}
if ((toz = find_zone(prhs[2])) == NULL) {
zif_close(fromz);
mexErrMsgTxt("cannot open target zone\n");
}
#define TO_UNIX(x) ((x) - 719529.0) * 86400.0
#define TO_MATL(x) ((x) / 86400.0) + 719529.0
{
mwSize m = mxGetM(prhs[0]);
mwSize n = mxGetN(prhs[0]);
const double *src = mxGetPr(prhs[0]);
double *tgt;
plhs[0] = mxCreateDoubleMatrix(m, n, mxREAL);
tgt = mxGetPr(plhs[0]);
for (mwSize i = 0; i < m * n; i++) {
double x = TO_UNIX(src[i]);
if (x < 2147483647.0 && x > -2147483648.0) {
double frac = modf(x, &x);
int32_t utc = zif_utc_time(fromz, (int32_t)x);
int32_t lcl = zif_local_time(toz, utc);
tgt[i] = TO_MATL((double)lcl) + frac / 86400.0;
} else {
tgt[i] = NAN;
}
}
}
zif_close(fromz);
zif_close(toz);
return;
}
/* gand_get_series.c ends here */
|
