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- #pragma once
- #include <c10/core/TensorImpl.h>
- #include <c10/util/irange.h>
- #include <ATen/WrapDimUtils.h>
- #include <sstream>
- #include <bitset>
- namespace at {
- // This is in an extra file to work around strange interaction of
- // bitset on Windows with operator overloading
- constexpr size_t dim_bitset_size = 64;
- static inline std::bitset<dim_bitset_size> dim_list_to_bitset(IntArrayRef dims, int64_t ndims) {
- TORCH_CHECK(ndims <= (int64_t) dim_bitset_size, "only tensors with up to ", dim_bitset_size, " dims are supported");
- std::bitset<dim_bitset_size> seen;
- for (const auto i : c10::irange(dims.size())) {
- size_t dim = maybe_wrap_dim(dims[i], ndims);
- TORCH_CHECK(!seen[dim], "dim ", dim, " appears multiple times in the list of dims");
- seen[dim] = true;
- }
- return seen;
- }
- }
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