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#include <ATen/core/TensorBase.h>
#include <algorithm>
#include <vector>
namespace at { namespace native {
inline int64_t ensure_nonempty_dim(int64_t dim) {
return std::max<int64_t>(dim, 1);
}
inline int64_t ensure_nonempty_size(const TensorBase &t, int64_t dim) {
return t.dim() == 0 ? 1 : t.size(dim);
}
inline int64_t ensure_nonempty_stride(const TensorBase &t, int64_t dim) {
return t.dim() == 0 ? 1 : t.stride(dim);
}
using IdxVec = std::vector<int64_t>;
inline IdxVec ensure_nonempty_vec(IdxVec vec) {
if (vec.size() == 0) {
vec.push_back(1);
}
return vec;
}
}} // namespace at::native
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