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
|
/*
* Copyright 2008-2013 NVIDIA Corporation
* Copyright 2013 Filipe RNC Maia
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <thrust/detail/config.h>
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
#include <thrust/complex.h>
#include <thrust/detail/complex/math_private.h>
#include <cmath>
THRUST_NAMESPACE_BEGIN
namespace detail{
namespace complex{
__host__ __device__
inline complex<float> cprojf(const complex<float>& z){
if(!isinf(z.real()) && !isinf(z.imag())){
return z;
}else{
// std::numeric_limits<T>::infinity() doesn't run on the GPU
return complex<float>(infinity<float>(), copysignf(0.0, z.imag()));
}
}
__host__ __device__
inline complex<double> cproj(const complex<double>& z){
if(!isinf(z.real()) && !isinf(z.imag())){
return z;
}else{
// std::numeric_limits<T>::infinity() doesn't run on the GPU
return complex<double>(infinity<double>(), copysign(0.0, z.imag()));
}
}
}
}
template <typename T>
__host__ __device__
inline thrust::complex<T> proj(const thrust::complex<T>& z){
return detail::complex::cproj(z);
}
template <>
__host__ __device__
inline thrust::complex<double> proj(const thrust::complex<double>& z){
return detail::complex::cproj(z);
}
template <>
__host__ __device__
inline thrust::complex<float> proj(const thrust::complex<float>& z){
return detail::complex::cprojf(z);
}
THRUST_NAMESPACE_END
|
