1 files changed, 42 insertions, 0 deletions
diff --git a/include/pdb/error.hpp b/include/pdb/error.hpp
new file mode 100644
index 0000000..6640907
--- /dev/null
+++ b/include/pdb/error.hpp
@@ -0,0 +1,42 @@
+// Copyright (c) 2017 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "PDB repository" project.
+// For details, see https://github.com/egor-tensin/pdb-repo.
+// Distributed under the MIT License.
+
+#pragma once
+
+#include <Windows.h>
+
+#include <string>
+#include <system_error>
+
+namespace pdb
+{
+    namespace error
+    {
+        class CategoryWindows : public std::error_category
+        {
+        public:
+            CategoryWindows() = default;
+
+            const char* name() const noexcept { return "Windows"; }
+
+            std::string message(int) const;
+        };
+
+        inline const CategoryWindows& category_windows()
+        {
+            static const CategoryWindows instance;
+            return instance;
+        }
+
+        inline std::system_error windows(DWORD code)
+        {
+            static_assert(sizeof(DWORD) == sizeof(int), "Aren't DWORDs the same size as ints?");
+
+            return std::system_error{
+                static_cast<int>(code),
+                category_windows()};
+        }
+    }
+}