================
@@ -0,0 +1,57 @@
+#ifndef
LLVM_CLANG_TOOLS_EXTRA_TEST_CLANG_TIDY_CHECKERS_INPUTS_STD_TYPES_OPTIONAL_H_
+#define
LLVM_CLANG_TOOLS_EXTRA_TEST_CLANG_TIDY_CHECKERS_INPUTS_STD_TYPES_OPTIONAL_H_
+
+namespace std {
+
+struct nullopt_t {
+ constexpr explicit nullopt_t() {}
+};
+
+constexpr nullopt_t nullopt;
+
+template <typename T>
+class optional {
+public:
+ constexpr optional() noexcept;
+
+ constexpr optional(nullopt_t) noexcept;
+
+ optional(const optional &) = default;
+
+ optional(optional &&) = default;
+
+ const T &operator*() const &;
+ T &operator*() &;
+ const T &&operator*() const &&;
+ T &&operator*() &&;
+
+ const T *operator->() const;
+ T *operator->();
+
+ const T &value() const &;
+ T &value() &;
+ const T &&value() const &&;
+ T &&value() &&;
+
+ constexpr explicit operator bool() const noexcept;
+ constexpr bool has_value() const noexcept;
+
+ template <typename U>
+ constexpr T value_or(U &&v) const &;
+ template <typename U>
+ T value_or(U &&v) &&;
+
+ template <typename... Args>
+ T &emplace(Args &&...args);
+
+ void reset() noexcept;
+
+ void swap(optional &rhs) noexcept;
+
+ template <typename U> optional &operator=(const U &u);
+};
+
+} // namespace std
+
+
+#endif //
LLVM_CLANG_TOOLS_EXTRA_TEST_CLANG_TIDY_CHECKERS_INPUTS_STD_TYPES_OPTIONAL_H_
----------------
EugeneZelenko wrote:
Please add newline.
https://github.com/llvm/llvm-project/pull/168863
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