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diff --git a/intl/icu/source/i18n/digitaffix.h b/intl/icu/source/i18n/digitaffix.h
new file mode 100644
index 000000000..a1a100654
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+++ b/intl/icu/source/i18n/digitaffix.h
@@ -0,0 +1,104 @@
+// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+* Copyright (C) 2015, International Business Machines
+* Corporation and others.  All Rights Reserved.
+*******************************************************************************
+* digitaffix.h
+*
+* created on: 2015jan06
+* created by: Travis Keep
+*/
+
+#ifndef __DIGITAFFIX_H__
+#define __DIGITAFFIX_H__
+
+#include "unicode/uobject.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/unistr.h"
+#include "unicode/unum.h"
+#include "unicode/utypes.h"
+
+U_NAMESPACE_BEGIN
+
+class FieldPositionHandler;
+
+/**
+ * A prefix or suffix of a formatted number.
+ */
+class U_I18N_API DigitAffix : public UMemory {
+public:
+
+    /**
+     * Creates an empty DigitAffix.
+     */
+    DigitAffix();
+
+    /**
+     * Creates a DigitAffix containing given UChars where all of it has
+     * a field type of fieldId.
+     */
+    DigitAffix(
+            const UChar *value,
+            int32_t charCount,
+            int32_t fieldId=UNUM_FIELD_COUNT);
+
+    /**
+     * Makes this affix be the empty string.
+     */
+    void remove();
+
+    /**
+     * Append value to this affix. If fieldId is present, the appended
+     * string is considered to be the type fieldId.
+     */
+    void appendUChar(UChar value, int32_t fieldId=UNUM_FIELD_COUNT);
+
+    /**
+     * Append value to this affix. If fieldId is present, the appended
+     * string is considered to be the type fieldId.
+     */
+    void append(const UnicodeString &value, int32_t fieldId=UNUM_FIELD_COUNT);
+
+    /**
+     * Sets this affix to given string. The entire string
+     * is considered to be the type fieldId.
+     */
+    void setTo(const UnicodeString &value, int32_t fieldId=UNUM_FIELD_COUNT);
+
+    /**
+     * Append value to this affix. If fieldId is present, the appended
+     * string is considered to be the type fieldId.
+     */
+    void append(const UChar *value, int32_t charCount, int32_t fieldId=UNUM_FIELD_COUNT);
+
+    /**
+     * Formats this affix.
+     */
+    UnicodeString &format(
+            FieldPositionHandler &handler, UnicodeString &appendTo) const;
+    int32_t countChar32() const { return fAffix.countChar32(); }
+
+    /**
+     * Returns this affix as a unicode string.
+     */
+    const UnicodeString & toString() const { return fAffix; }
+
+    /**
+     * Returns TRUE if this object equals rhs.
+     */
+    UBool equals(const DigitAffix &rhs) const {
+        return ((fAffix == rhs.fAffix) && (fAnnotations == rhs.fAnnotations));
+    }
+private:
+    UnicodeString fAffix;
+    UnicodeString fAnnotations;
+};
+
+
+U_NAMESPACE_END
+#endif // #if !UCONFIG_NO_FORMATTING
+#endif  // __DIGITAFFIX_H__