/usr/include/af/complex.h is in libarrayfire-dev 3.3.2+dfsg1-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#pragma once
#include "af/defines.h"
#ifdef __cplusplus
#include <ostream>
#include <istream>
namespace af{
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef struct af_cfloat {
float real;
float imag;
#ifdef __cplusplus
af_cfloat(const float real = 0, const float imag = 0) :real(real), imag(imag) {};
#endif
} af_cfloat;
typedef struct af_cdouble {
double real;
double imag;
#ifdef __cplusplus
af_cdouble(const double real = 0, const double imag = 0) :real(real), imag(imag) {}
#endif
} af_cdouble;
#ifdef __cplusplus
}
#endif
#ifdef __cplusplus
typedef af::af_cfloat cfloat;
typedef af::af_cdouble cdouble;
AFAPI float real(af_cfloat val);
AFAPI double real(af_cdouble val);
AFAPI float imag(af_cfloat val);
AFAPI double imag(af_cdouble val);
// +,-,*,/ for (cfloat, cfloat) and (cdouble, cdouble)
#define DEFINE_OP(OP) \
AFAPI af::cfloat operator OP(const af::cfloat &lhs, const af::cfloat &rhs); \
AFAPI af::cdouble operator OP(const af::cdouble &lhs, const af::cdouble &rhs); \
DEFINE_OP(+)
DEFINE_OP(-)
DEFINE_OP(*)
DEFINE_OP(/)
#undef DEFINE_OP
// +,/ for (cfloat, double) and (cdouble, double)
#define DEFINE_OP(OP) \
AFAPI af::cfloat operator OP(const af::cfloat &lhs, const double &rhs); \
AFAPI af::cdouble operator OP(const af::cdouble &lhs, const double &rhs); \
DEFINE_OP(+)
DEFINE_OP(/)
#undef DEFINE_OP
#if AF_API_VERSION >= 31
// -,* for (cfloat, double) and (cdouble, double)
#define DEFINE_OP(OP) \
AFAPI af::cfloat operator OP(const af::cfloat &lhs, const double &rhs); \
AFAPI af::cdouble operator OP(const af::cdouble &lhs, const double &rhs); \
DEFINE_OP(-)
DEFINE_OP(*)
#undef DEFINE_OP
#endif // AF_API_VERSION
#if AF_API_VERSION >= 31
// +, -, *, / for (double, cfloat/cdouble) and (cfloat/cdouble, cdouble/cfloat)
#define DEFINE_OP(OP) \
AFAPI af::cfloat operator OP(const double &rhs, const af::cfloat &lhs); \
AFAPI af::cdouble operator OP(const double &rhs, const af::cdouble &lhs); \
AFAPI af::cdouble operator OP(const af::cfloat &lhs, const af::cdouble &rhs); \
AFAPI af::cdouble operator OP(const af::cdouble &lhs, const af::cfloat &rhs); \
DEFINE_OP(+)
DEFINE_OP(-)
DEFINE_OP(*)
DEFINE_OP(/)
#undef DEFINE_OP
#endif // AF_API_VERSION
AFAPI bool operator==(const cfloat &lhs, const cfloat &rhs);
AFAPI bool operator==(const cdouble &lhs, const cdouble &rhs);
AFAPI bool operator!=(const cfloat &lhs, const cfloat &rhs);
AFAPI bool operator!=(const cdouble &lhs, const cdouble &rhs);
AFAPI std::istream& operator>> (std::istream &is, cfloat &in);
AFAPI std::istream& operator>> (std::istream &is, cdouble &in);
AFAPI std::ostream& operator<< (std::ostream &os, const cfloat &in);
AFAPI std::ostream& operator<< (std::ostream &os, const cdouble &in);
AFAPI float abs(const cfloat &val);
AFAPI double abs(const cdouble &val);
AFAPI cfloat conj(const cfloat &val);
AFAPI cdouble conj(const cdouble &val);
}
#endif
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