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
|
#ifndef COMPLEX_OPS_H
#define COMPLEX_OPS_H
/*
* Functions to handle arithmetic operations on NumPy complex values
*/
#include <numpy/arrayobject.h>
template <class c_type, class npy_type>
class complex_wrapper : public npy_type {
public:
/* Constructor */
complex_wrapper( const c_type r = c_type(0), const c_type i = c_type(0) ){
npy_type::real = r;
npy_type::imag = i;
}
/* Conversion */
operator bool() const {
if (npy_type::real == 0 && npy_type::imag == 0) {
return false;
} else {
return true;
}
}
/* Operators */
complex_wrapper operator-() const {
return complex_wrapper(-npy_type::real,-npy_type::imag);
}
complex_wrapper operator+(const complex_wrapper& B) const {
return complex_wrapper(npy_type::real + B.real, npy_type::imag + B.imag);
}
complex_wrapper operator-(const complex_wrapper& B) const {
return complex_wrapper(npy_type::real - B.real, npy_type::imag - B.imag);
}
complex_wrapper operator*(const complex_wrapper& B) const {
return complex_wrapper(npy_type::real * B.real - npy_type::imag * B.imag,
npy_type::real * B.imag + npy_type::imag * B.real);
}
complex_wrapper operator/(const complex_wrapper& B) const {
complex_wrapper result;
c_type denom = 1.0 / (B.real * B.real + B.imag * B.imag);
result.real = (npy_type::real * B.real + npy_type::imag * B.imag) * denom;
result.imag = (npy_type::imag * B.real - npy_type::real * B.imag) * denom;
return result;
}
/* in-place operators */
complex_wrapper& operator+=(const complex_wrapper & B){
npy_type::real += B.real;
npy_type::imag += B.imag;
return (*this);
}
complex_wrapper& operator-=(const complex_wrapper & B){
npy_type::real -= B.real;
npy_type::imag -= B.imag;
return (*this);
}
complex_wrapper& operator*=(const complex_wrapper & B){
c_type temp = npy_type::real * B.real - npy_type::imag * B.imag;
npy_type::imag = npy_type::real * B.imag + npy_type::imag * B.real;
npy_type::real = temp;
return (*this);
}
complex_wrapper& operator/=(const complex_wrapper & B){
c_type denom = 1.0 / (B.real * B.real + B.imag * B.imag);
c_type temp = (npy_type::real * B.real + npy_type::imag * B.imag) * denom;
npy_type::imag = (npy_type::imag * B.real - npy_type::real * B.imag) * denom;
npy_type::real = temp;
return (*this);
}
/* Boolean operations */
bool operator==(const complex_wrapper& B) const{
return npy_type::real == B.real && npy_type::imag == B.imag;
}
bool operator!=(const complex_wrapper& B) const{
return npy_type::real != B.real || npy_type::imag != B.imag;
}
bool operator<(const complex_wrapper& B) const{
if (npy_type::real == B.real){
return npy_type::imag < B.imag;
} else {
return npy_type::real < B.real;
}
}
bool operator>(const complex_wrapper& B) const{
if (npy_type::real == B.real){
return npy_type::imag > B.imag;
} else {
return npy_type::real > B.real;
}
}
bool operator<=(const complex_wrapper& B) const{
if (npy_type::real == B.real){
return npy_type::imag <= B.imag;
} else {
return npy_type::real <= B.real;
}
}
bool operator>=(const complex_wrapper& B) const{
if (npy_type::real == B.real){
return npy_type::imag >= B.imag;
} else {
return npy_type::real >= B.real;
}
}
template <class T>
bool operator==(const T& B) const{
return npy_type::real == B && npy_type::imag == T(0);
}
template <class T>
bool operator!=(const T& B) const{
return npy_type::real != B || npy_type::imag != T(0);
}
template <class T>
bool operator<(const T& B) const{
if (npy_type::real == B) {
return npy_type::imag < T(0);
} else {
return npy_type::real < B;
}
}
template <class T>
bool operator>(const T& B) const{
if (npy_type::real == B) {
return npy_type::imag > T(0);
} else {
return npy_type::real > B;
}
}
template <class T>
bool operator<=(const T& B) const{
if (npy_type::real == B) {
return npy_type::imag <= T(0);
} else {
return npy_type::real <= B;
}
}
template <class T>
bool operator>=(const T& B) const{
if (npy_type::real == B) {
return npy_type::imag >= T(0);
} else {
return npy_type::real >= B;
}
}
complex_wrapper& operator=(const complex_wrapper& B){
npy_type::real = B.real;
npy_type::imag = B.imag;
return (*this);
}
complex_wrapper& operator=(const c_type& B){
npy_type::real = B;
npy_type::imag = c_type(0);
return (*this);
}
};
typedef complex_wrapper<float,npy_cfloat> npy_cfloat_wrapper;
typedef complex_wrapper<double,npy_cdouble> npy_cdouble_wrapper;
typedef complex_wrapper<long double,npy_clongdouble> npy_clongdouble_wrapper;
#endif
|
