#pragma once
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#include <c10/core/TensorImpl.h>
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namespace c10 {
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struct C10_API UndefinedTensorImpl final : public TensorImpl {
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public:
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// Without this, we get:
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// error: identifier "at::UndefinedTensorImpl::_singleton" is undefined in device code
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// (ostensibly because the constexpr tricks MSVC into trying to compile this
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// function for device as well).
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#ifdef _WIN32
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static inline TensorImpl * singleton() {
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#else
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static constexpr inline TensorImpl * singleton() {
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#endif
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return &_singleton;
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}
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IntArrayRef sizes() const override;
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IntArrayRef strides() const override;
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int64_t size(int64_t d) const override;
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int64_t stride(int64_t d) const override;
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int64_t dim() const override;
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bool has_storage() const override;
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const Storage& storage() const override;
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int64_t storage_offset() const override;
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private:
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UndefinedTensorImpl();
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static UndefinedTensorImpl _singleton;
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public:
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friend struct UndefinedType;
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};
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} // namespace c10
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