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diff --git a/intl/icu/source/i18n/unicode/nounit.h b/intl/icu/source/i18n/unicode/nounit.h
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+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+ *******************************************************************************
+ * Copyright (C) 2009-2017, International Business Machines Corporation,       *
+ * Google, and others. All Rights Reserved.                                    *
+ *******************************************************************************
+ */
+
+#ifndef __NOUNIT_H__
+#define __NOUNIT_H__
+
+#include "unicode/utypes.h"
+
+#if U_SHOW_CPLUSPLUS_API
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/measunit.h"
+
+/**
+ * \file
+ * \brief C++ API: units for percent and permille
+ */
+
+U_NAMESPACE_BEGIN
+
+/**
+ * Dimensionless unit for percent and permille.
+ * Prior to ICU 68, this namespace was a class with the same name.
+ * @see NumberFormatter
+ * @stable ICU 68
+ */
+namespace NoUnit {
+    /**
+     * Returns an instance for the base unit (dimensionless and no scaling).
+     *
+     * Prior to ICU 68, this function returned a NoUnit by value.
+     *
+     * Since ICU 68, this function returns the same value as the default MeasureUnit constructor.
+     *
+     * @return               a MeasureUnit instance
+     * @stable ICU 68
+     */
+    static inline MeasureUnit U_EXPORT2 base() {
+        return MeasureUnit();
+    }
+
+    /**
+     * Returns an instance for percent, or 1/100 of a base unit.
+     *
+     * Prior to ICU 68, this function returned a NoUnit by value.
+     *
+     * Since ICU 68, this function returns the same value as MeasureUnit::getPercent().
+     *
+     * @return               a MeasureUnit instance
+     * @stable ICU 68
+     */
+    static inline MeasureUnit U_EXPORT2 percent() {
+        return MeasureUnit::getPercent();
+    }
+
+    /**
+     * Returns an instance for permille, or 1/1000 of a base unit.
+     *
+     * Prior to ICU 68, this function returned a NoUnit by value.
+     *
+     * Since ICU 68, this function returns the same value as MeasureUnit::getPermille().
+     *
+     * @return               a MeasureUnit instance
+     * @stable ICU 68
+     */
+    static inline MeasureUnit U_EXPORT2 permille() {
+        return MeasureUnit::getPermille();
+    }
+}
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+
+#endif /* U_SHOW_CPLUSPLUS_API */
+
+#endif // __NOUNIT_H__
+//eof
+//