Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/tools/llvm-readobj/Error.h

@@ -0,0 +1,41 @@
+//===- Error.h - system_error extensions for llvm-readobj -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This declares a new error_category for the llvm-readobj tool.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_LLVM_READOBJ_ERROR_H
+#define LLVM_TOOLS_LLVM_READOBJ_ERROR_H
+
+#include <system_error>
+
+namespace llvm {
+const std::error_category &readobj_category();
+
+enum class readobj_error {
+  success = 0,
+  file_not_found,
+  unsupported_file_format,
+  unrecognized_file_format,
+  unsupported_obj_file_format,
+  unknown_symbol
+};
+
+inline std::error_code make_error_code(readobj_error e) {
+  return std::error_code(static_cast<int>(e), readobj_category());
+}
+
+} // namespace llvm
+
+namespace std {
+template <> struct is_error_code_enum<llvm::readobj_error> : std::true_type {};
+}
+
+#endif