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