--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/unicode/dtintrv.h	Tue Mar 18 17:55:14 2025 -0400
@@ -0,0 +1,164 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+* Copyright (C) 2008-2009, International Business Machines Corporation and
+* others. All Rights Reserved.
+*******************************************************************************
+*
+* File DTINTRV.H 
+*
+*******************************************************************************
+*/
+
+#ifndef __DTINTRV_H__
+#define __DTINTRV_H__
+
+#include "unicode/utypes.h"
+
+#if U_SHOW_CPLUSPLUS_API
+
+#include "unicode/uobject.h"
+
+/**
+ * \file
+ * \brief C++ API: Date Interval data type
+ */
+
+U_NAMESPACE_BEGIN
+
+
+/**
+ * This class represents a date interval.
+ * It is a pair of UDate representing from UDate 1 to UDate 2.
+ * @stable ICU 4.0
+**/
+class U_COMMON_API DateInterval : public UObject {
+public:
+
+    /** 
+     * Construct a DateInterval given a from date and a to date.
+     * @param fromDate  The from date in date interval.
+     * @param toDate    The to date in date interval.
+     * @stable ICU 4.0
+     */
+    DateInterval(UDate fromDate, UDate toDate);
+
+    /**
+     * destructor
+     * @stable ICU 4.0
+     */
+    virtual ~DateInterval();
+ 
+    /** 
+     * Get the from date.
+     * @return  the from date in dateInterval.
+     * @stable ICU 4.0
+     */
+    inline UDate getFromDate() const;
+
+    /** 
+     * Get the to date.
+     * @return  the to date in dateInterval.
+     * @stable ICU 4.0
+     */
+    inline UDate getToDate() const;
+
+
+    /**
+     * Return the class ID for this class. This is useful only for comparing to
+     * a return value from getDynamicClassID(). For example:
+     * <pre>
+     * .   Base* polymorphic_pointer = createPolymorphicObject();
+     * .   if (polymorphic_pointer->getDynamicClassID() ==
+     * .       derived::getStaticClassID()) ...
+     * </pre>
+     * @return          The class ID for all objects of this class.
+     * @stable ICU 4.0
+     */
+    static UClassID U_EXPORT2 getStaticClassID(void);
+
+    /**
+     * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This
+     * method is to implement a simple version of RTTI, since not all C++
+     * compilers support genuine RTTI. Polymorphic operator==() and clone()
+     * methods call this method.
+     *
+     * @return          The class ID for this object. All objects of a
+     *                  given class have the same class ID.  Objects of
+     *                  other classes have different class IDs.
+     * @stable ICU 4.0
+     */
+    virtual UClassID getDynamicClassID(void) const;
+
+    
+    /**
+     * Copy constructor.
+     * @stable ICU 4.0
+     */
+    DateInterval(const DateInterval& other);
+
+    /**
+     * Default assignment operator
+     * @stable ICU 4.0
+     */
+    DateInterval& operator=(const DateInterval&);
+
+    /**
+     * Equality operator.
+     * @return TRUE if the two DateIntervals are the same
+     * @stable ICU 4.0
+     */
+    virtual UBool operator==(const DateInterval& other) const;
+
+    /**
+     * Non-equality operator
+     * @return TRUE if the two DateIntervals are not the same
+     * @stable ICU 4.0
+     */
+    inline UBool operator!=(const DateInterval& other) const;
+
+
+    /**
+     * clone this object. 
+     * The caller owns the result and should delete it when done.
+     * @return a cloned DateInterval
+     * @stable ICU 4.0
+     */
+     virtual DateInterval* clone() const;
+
+private:
+    /** 
+     * Default constructor, not implemented.
+     */
+    DateInterval();
+
+    UDate fromDate;
+    UDate toDate;
+
+} ;// end class DateInterval
+
+
+inline UDate 
+DateInterval::getFromDate() const { 
+    return fromDate; 
+}
+
+
+inline UDate 
+DateInterval::getToDate() const { 
+    return toDate; 
+}
+
+
+inline UBool 
+DateInterval::operator!=(const DateInterval& other) const { 
+    return ( !operator==(other) );
+}
+
+
+U_NAMESPACE_END
+
+#endif /* U_SHOW_CPLUSPLUS_API */
+
+#endif