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#pragma once
#include <c10/core/SymInt.h>
#include <c10/util/ArrayRef.h>
#include <c10/util/Exception.h>
#include <c10/util/Optional.h>
#include <array>
#include <initializer_list>
#include <iterator>
#include <vector>
namespace c10 {
using SymIntArrayRef = ArrayRef<SymInt>;
TORCH_API at::IntArrayRef asIntArrayRefSlow(c10::SymIntArrayRef ar);
TORCH_API at::IntArrayRef asIntArrayRefUnchecked(c10::SymIntArrayRef ar);
TORCH_API c10::optional<at::IntArrayRef> asIntArrayRefSlowOpt(
c10::SymIntArrayRef ar);
// Prefer using a more semantic constructor, like
// fromIntArrayRefKnownNonNegative
inline SymIntArrayRef fromIntArrayRefUnchecked(IntArrayRef array_ref) {
return SymIntArrayRef(
reinterpret_cast<const SymInt*>(array_ref.data()), array_ref.size());
}
inline SymIntArrayRef fromIntArrayRefKnownNonNegative(IntArrayRef array_ref) {
return fromIntArrayRefUnchecked(array_ref);
}
inline SymIntArrayRef fromIntArrayRef(IntArrayRef array_ref) {
for (size_t i = 0; i < array_ref.size(); ++i) {
TORCH_CHECK(
SymInt::check_range(array_ref[i]),
"IntArrayRef contains an int that cannot be represented as a SymInt: ",
array_ref[i]);
}
return SymIntArrayRef(
reinterpret_cast<const SymInt*>(array_ref.data()), array_ref.size());
}
} // namespace c10
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