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165f4f6ccf
We have C++17 now! I am intentionally dropping the `c10::optional<c10::ArrayRef>` size optimization. It was intended to improve dispatch, but thanks to D34602980 / #70864 we don't use `optional<ArrayRef>` in function arguments anymore anyway. Differential Revision: [D46079028](https://our.internmc.facebook.com/intern/diff/D46079028/) Pull Request resolved: https://github.com/pytorch/pytorch/pull/101995 Approved by: https://github.com/malfet, https://github.com/Skylion007, https://github.com/ezyang
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
#include <c10/core/TensorOptions.h>
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#include <c10/core/Device.h>
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#include <c10/core/Layout.h>
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#include <c10/util/Optional.h>
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#include <iostream>
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namespace c10 {
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// Note: TensorOptions properties are all optional, but (almost) all have
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// getters that supply a default when the corresponding property is missing.
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// Here we print the values returned by the default-supplying getters for
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// properties that have them, along with an annotation if the value is
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// returned by default. This gives the full picture of both the object's
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// internal state and what its getters will return.
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std::ostream& operator<<(std::ostream& stream, const TensorOptions& options) {
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auto print = [&](const char* label, auto prop, bool has_prop) {
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stream << label << std::boolalpha << prop << (has_prop ? "" : " (default)");
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};
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print("TensorOptions(dtype=", options.dtype(), options.has_dtype());
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print(", device=", options.device(), options.has_device());
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print(", layout=", options.layout(), options.has_layout());
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print(
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", requires_grad=", options.requires_grad(), options.has_requires_grad());
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print(
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", pinned_memory=", options.pinned_memory(), options.has_pinned_memory());
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// note: default-supplying memory_format() getter not provided; no canonical
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// default
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stream << ", memory_format=";
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if (options.has_memory_format()) {
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// NOLINTNEXTLINE(bugprone-unchecked-optional-access)
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stream << *options.memory_format_opt();
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} else {
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stream << "(nullopt)";
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}
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stream << ")";
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return stream;
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}
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} // namespace c10
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