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Feature/add complex cast operators #633

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May 28, 2024
Merged

Feature/add complex cast operators #633

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f48b0ec
Add operators to cast to complex float/double
tbensonatl May 28, 2024
04ac1b2
Add operators to cast to complex float/double
tbensonatl May 28, 2024
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28 changes: 28 additions & 0 deletions include/matx/operators/cast.h
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,8 @@ namespace matx
template<typename T> __MATX_INLINE__ std::string as_type_str() { return "as_type"; }
template<> __MATX_INLINE__ std::string as_type_str<float>() { return "as_float"; }
template<> __MATX_INLINE__ std::string as_type_str<double>() { return "as_double"; }
template<> __MATX_INLINE__ std::string as_type_str<cuda::std::complex<double>>() { return "cuda::std::complex<double>"; }
template<> __MATX_INLINE__ std::string as_type_str<cuda::std::complex<float>>() { return "cuda::std::complex<float>"; }
template<> __MATX_INLINE__ std::string as_type_str<int32_t>() { return "as_int32_t"; }
template<> __MATX_INLINE__ std::string as_type_str<uint32_t>() { return "as_uint32_t"; }
template<> __MATX_INLINE__ std::string as_type_str<int16_t>() { return "as_int16_t"; }
Expand Down Expand Up @@ -155,6 +157,19 @@ namespace matx
return as_type<float>(t);
};

/**
* @brief Helper function to cast an input operator to a cuda::std::complex<float>
*
* @tparam T Input type
* @param t Input operator
* @return Operator output casted to cuda::std::complex<float>
*/
template <typename T>
auto __MATX_INLINE__ as_complex_float(T t)
{
return as_type<cuda::std::complex<float>>(t);
};

/**
* @brief Helper function to cast an input operator to an double
*
Expand All @@ -168,6 +183,19 @@ namespace matx
return as_type<double>(t);
};

/**
* @brief Helper function to cast an input operator to a cuda::std::complex<double>
*
* @tparam T Input type
* @param t Input operator
* @return Operator output casted to cuda::std::complex<double>
*/
template <typename T>
auto __MATX_INLINE__ as_complex_double(T t)
{
return as_type<cuda::std::complex<double>>(t);
};

/**
* @brief Helper function to cast an input operator to an uint32_t
*
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25 changes: 25 additions & 0 deletions test/00_operators/OperatorTests.cu
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Expand Up @@ -4094,6 +4094,31 @@ TEST(OperatorTests, Cast)
ASSERT_EQ(to(i), -4); // -4 from 126 + 126 wrap-around
}

auto c32 = make_tensor<cuda::std::complex<float>>({});
auto c64 = make_tensor<cuda::std::complex<double>>({});
auto s32 = make_tensor<float>({});
auto s64 = make_tensor<double>({});
s32.SetVals({3.0f});
s64.SetVals({5.0});

(c32 = as_complex_float(s32)).run();
(c64 = as_complex_double(s32)).run();
cudaStreamSynchronize(0);

ASSERT_EQ(c32().real(), 3.0f);
ASSERT_EQ(c32().imag(), 0.0f);
ASSERT_EQ(c64().real(), 3.0);
ASSERT_EQ(c64().imag(), 0.0);

(c32 = as_complex_float(s64)).run();
(c64 = as_complex_double(s64)).run();
cudaStreamSynchronize(0);

ASSERT_EQ(c32().real(), 5.0f);
ASSERT_EQ(c32().imag(), 0.0f);
ASSERT_EQ(c64().real(), 5.0);
ASSERT_EQ(c64().imag(), 0.0);

MATX_EXIT_HANDLER();
}

Expand Down