blob: be4ccbf67bf4d8df7dfa8a13664c92cc3a3a981a (
plain)
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
|
%% options
copyright owner = Dirk Krause
copyright year = 2014-xxxx
license = bsd
%% header
/** @file dk3madsc.h Conversion from double to short and
unsigned short.
*/
#include <dk3conf.h>
#include <stdio.h>
#if DK3_HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if DK3_HAVE_STDINT
#include <stdint.h>
#endif
#if DK3_HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#if DK3_HAVE_LIMITS_H
#include <limits.h>
#endif
#if DK3_HAVE_MATH_H
#include <math.h>
#endif
#if DK3_HAVE_FLOAT_H
#include <float.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Convert double value to short.
@param x Double value to convert.
@param ec Pointer to error code variable.
Set to DK3_ERROR_MATH_OVERFLOW if the absolute value of x is too large.
@return Conversion result.
*/
short
dk3ma_d_to_s_ok(double x, int *ec);
/** Convert double value to unsigned short.
@param x Double value to convert.
@param ec Pointer to error code variable.
Set to DK3_ERROR_MATH_OVERFLOW if the absolute value of x is too large,
DK3_ERROR_MATH_OUT_OF_RANGE for negative x.
@return Conversion result.
*/
unsigned short
dk3ma_d_to_us_ok(double x, int *ec);
#ifdef __cplusplus
}
#endif
%% module
#include "dk3ma.h"
$!trace-include
short
dk3ma_d_to_s_ok(double x, int *ec)
{
short back = 0;
if ((double)DK3_S_MIN <= x) {
if ((double)DK3_S_MAX >= x) {
back = (short)x;
} else {
back = DK3_S_MAX;
if (NULL != ec) { *ec = DK3_ERROR_MATH_OVERFLOW; }
}
} else {
back = DK3_S_MIN;
if (NULL != ec) { *ec = DK3_ERROR_MATH_OVERFLOW; }
}
return back;
}
unsigned short
dk3ma_d_to_us_ok(double x, int *ec)
{
unsigned short back = 0U;
if (0.0 <= x) {
if ((double)DK3_US_MAX >= x) {
back = (unsigned short)x;
} else {
back = DK3_US_MAX;
if (NULL != ec) { *ec = DK3_ERROR_MATH_OVERFLOW; }
}
} else {
if (NULL != ec) { *ec = DK3_ERROR_MATH_OUT_OF_RANGE; }
}
return back;
}
|