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-rw-r--r--core/include/fxcrt/fx_safe_types.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/core/include/fxcrt/fx_safe_types.h b/core/include/fxcrt/fx_safe_types.h
new file mode 100644
index 0000000000..e45e6d3c8d
--- /dev/null
+++ b/core/include/fxcrt/fx_safe_types.h
@@ -0,0 +1,19 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CORE_INCLUDE_FXCRT_FX_SAFE_TYPES_H_
+#define CORE_INCLUDE_FXCRT_FX_SAFE_TYPES_H_
+
+#include <stdlib.h> // For size_t.
+
+#include "../../../third_party/base/numerics/safe_math.h"
+#include "fx_stream.h" // for FX_FILESIZE.
+#include "fx_system.h"
+
+typedef pdfium::base::CheckedNumeric<FX_DWORD> FX_SAFE_DWORD;
+typedef pdfium::base::CheckedNumeric<FX_INT32> FX_SAFE_INT32;
+typedef pdfium::base::CheckedNumeric<size_t> FX_SAFE_SIZE_T;
+typedef pdfium::base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;
+
+#endif // CORE_INCLUDE_FXCRT_FX_SAFE_TYPES_H_