Update ICU to 54.1 step 1

source/i18n/unicode/udat.h

 /*
  *******************************************************************************
- * Copyright (C) 1996-2013, International Business Machines
+ * Copyright (C) 1996-2014, International Business Machines
  * Corporation and others. All Rights Reserved.
  *******************************************************************************
 */
 
 #ifndef UDAT_H
 #define UDAT_H
 
 #include "unicode/utypes.h"
 
 #if !UCONFIG_NO_FORMATTING
@@ skipping 165 matching lines @@
     /** No style */
     UDAT_NONE = -1,
 
     /**
      * Use the pattern given in the parameter to udat_open
      * @see udat_open
      * @stable ICU 50
      */
     UDAT_PATTERN = -2,
 
+#ifndef U_HIDE_INTERNAL_API
     /** @internal alias to UDAT_PATTERN */
     UDAT_IGNORE = UDAT_PATTERN
+#endif /* U_HIDE_INTERNAL_API */
 } UDateFormatStyle;
 
 /* Skeletons for dates. */
 
 /**
  * Constant for date skeleton with year.
  * @stable ICU 4.0
  */
 #define UDAT_YEAR                       "y"
-#ifndef U_HIDE_DRAFT_API
 /**
  * Constant for date skeleton with quarter.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_QUARTER                    "QQQQ"
 /**
  * Constant for date skeleton with abbreviated quarter.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_ABBR_QUARTER               "QQQ"
-#endif  /* U_HIDE_DRAFT_API */
 /**
  * Constant for date skeleton with year and quarter.
  * @stable ICU 4.0
  */
 #define UDAT_YEAR_QUARTER               "yQQQQ"
 /**
  * Constant for date skeleton with year and abbreviated quarter.
  * @stable ICU 4.0
  */
 #define UDAT_YEAR_ABBR_QUARTER          "yQQQ"
@@ skipping 43 matching lines @@
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_YEAR_ABBR_MONTH_DAY        "yMMMd"
 /**
  * Constant for date skeleton with year, numeric month, and day.
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_YEAR_NUM_MONTH_DAY         "yMd"
-#ifndef U_HIDE_DRAFT_API
 /**
  * Constant for date skeleton with weekday.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_WEEKDAY                    "EEEE"
 /**
  * Constant for date skeleton with abbreviated weekday.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_ABBR_WEEKDAY               "E"
-#endif  /* U_HIDE_DRAFT_API */
 /**
  * Constant for date skeleton with year, month, weekday, and day.
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_YEAR_MONTH_WEEKDAY_DAY     "yMMMMEEEEd"
 /**
  * Constant for date skeleton with year, abbreviated month, weekday, and day.
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
@@ skipping 42 matching lines @@
  */
 #define UDAT_NUM_MONTH_WEEKDAY_DAY      "MEd"
 
 /* Skeletons for times. */
 
 /**
  * Constant for date skeleton with hour, with the locale's preferred hour format (12 or 24).
  * @stable ICU 4.0
  */
 #define UDAT_HOUR                       "j"
-#ifndef U_HIDE_DRAFT_API
 /**
  * Constant for date skeleton with hour in 24-hour presentation.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_HOUR24                     "H"
 /**
  * Constant for date skeleton with minute.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_MINUTE                     "m"
-#endif  /* U_HIDE_DRAFT_API */
 /**
  * Constant for date skeleton with hour and minute, with the locale's preferred hour format (12 or 24).
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_HOUR_MINUTE                "jm"
 /**
  * Constant for date skeleton with hour and minute in 24-hour presentation.
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_HOUR24_MINUTE              "Hm"
-#ifndef U_HIDE_DRAFT_API
 /**
  * Constant for date skeleton with second.
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_SECOND                     "s"
-#endif  /* U_HIDE_DRAFT_API */
 /**
  * Constant for date skeleton with hour, minute, and second,
  * with the locale's preferred hour format (12 or 24).
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_HOUR_MINUTE_SECOND         "jms"
 /**
  * Constant for date skeleton with hour, minute, and second in
  * 24-hour presentation.
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_HOUR24_MINUTE_SECOND       "Hms"
 /**
  * Constant for date skeleton with minute and second.
  * Used in combinations date + time, date + time + zone, or time + zone.
  * @stable ICU 4.0
  */
 #define UDAT_MINUTE_SECOND              "ms"
 
 /* Skeletons for time zones. */
 
-#ifndef U_HIDE_DRAFT_API
 /**
  * Constant for <i>generic location format</i>, such as Los Angeles Time;
  * used in combinations date + time + zone, or time + zone.
  * @see <a href="http://unicode.org/reports/tr35/#Date_Format_Patterns">LDML Date Format Patterns</a>
  * @see <a href="http://unicode.org/reports/tr35/#Time_Zone_Fallback">LDML Time Zone Fallback</a>
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_LOCATION_TZ "VVVV"
 /**
  * Constant for <i>generic non-location format</i>, such as Pacific Time;
  * used in combinations date + time + zone, or time + zone.
  * @see <a href="http://unicode.org/reports/tr35/#Date_Format_Patterns">LDML Date Format Patterns</a>
  * @see <a href="http://unicode.org/reports/tr35/#Time_Zone_Fallback">LDML Time Zone Fallback</a>
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_GENERIC_TZ "vvvv"
 /**
  * Constant for <i>generic non-location format</i>, abbreviated if possible, such as PT;
  * used in combinations date + time + zone, or time + zone.
  * @see <a href="http://unicode.org/reports/tr35/#Date_Format_Patterns">LDML Date Format Patterns</a>
  * @see <a href="http://unicode.org/reports/tr35/#Time_Zone_Fallback">LDML Time Zone Fallback</a>
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_ABBR_GENERIC_TZ "v"
 /**
  * Constant for <i>specific non-location format</i>, such as Pacific Daylight Time;
  * used in combinations date + time + zone, or time + zone.
  * @see <a href="http://unicode.org/reports/tr35/#Date_Format_Patterns">LDML Date Format Patterns</a>
  * @see <a href="http://unicode.org/reports/tr35/#Time_Zone_Fallback">LDML Time Zone Fallback</a>
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_SPECIFIC_TZ "zzzz"
 /**
  * Constant for <i>specific non-location format</i>, abbreviated if possible, such as PDT;
  * used in combinations date + time + zone, or time + zone.
  * @see <a href="http://unicode.org/reports/tr35/#Date_Format_Patterns">LDML Date Format Patterns</a>
  * @see <a href="http://unicode.org/reports/tr35/#Time_Zone_Fallback">LDML Time Zone Fallback</a>
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_ABBR_SPECIFIC_TZ "z"
 /**
  * Constant for <i>localized GMT/UTC format</i>, such as GMT+8:00 or HPG-8:00;
  * used in combinations date + time + zone, or time + zone.
  * @see <a href="http://unicode.org/reports/tr35/#Date_Format_Patterns">LDML Date Format Patterns</a>
  * @see <a href="http://unicode.org/reports/tr35/#Time_Zone_Fallback">LDML Time Zone Fallback</a>
- * @draft ICU 51
+ * @stable ICU 51
  */
 #define UDAT_ABBR_UTC_TZ "ZZZZ"
-#endif  /* U_HIDE_DRAFT_API */
 
 /* deprecated skeleton constants */
 
 #ifndef U_HIDE_DEPRECATED_API 
 /**
  * Constant for date skeleton with standalone month.
  * @deprecated ICU 50 Use UDAT_MONTH instead.
  */
 #define UDAT_STANDALONE_MONTH           "LLLL"
 /**
@@ skipping 265 matching lines @@
 
     /**
      * FieldPosition selector for "U" field alignment,
      * corresponding to cyclic year names. This is implemented
      * using the {@link #UCAL_YEAR} field. This displays
      * the cyclic year name, if available.
      * @stable ICU 49
      */
     UDAT_YEAR_NAME_FIELD = 30,
 
-#ifndef U_HIDE_DRAFT_API
     /**
      * FieldPosition selector for 'O' field alignment,
      * corresponding to the UCAL_ZONE_OFFSET and UCAL_DST_OFFSETfields.
      * This displays the localized GMT format.
-     * @draft ICU 51
+     * @stable ICU 51
      */
     UDAT_TIMEZONE_LOCALIZED_GMT_OFFSET_FIELD = 31,
 
     /**
      * FieldPosition selector for 'X' field alignment,
      * corresponding to the UCAL_ZONE_OFFSET and UCAL_DST_OFFSETfields.
      * This displays the ISO 8601 local time offset format or UTC indicator ("Z").
-     * @draft ICU 51
+     * @stable ICU 51
      */
     UDAT_TIMEZONE_ISO_FIELD = 32,
 
     /**
      * FieldPosition selector for 'x' field alignment,
-     * corresponding to the UCAL_ZONE_OFFSET and UCAL_DST_OFFSETfields.
+     * corresponding to the UCAL_ZONE_OFFSET and UCAL_DST_OFFSET fields.
      * This displays the ISO 8601 local time offset format.
-     * @draft ICU 51
+     * @stable ICU 51
      */
     UDAT_TIMEZONE_ISO_LOCAL_FIELD = 33,
-#endif  /* U_HIDE_DRAFT_API */
 
+#ifndef U_HIDE_INTERNAL_API
     /**
+     * FieldPosition and UFieldPosition selector for 'r' field alignment,
+     * no directly corresponding UCAL_ field.
+     * @internal ICU 53
+     */
+    UDAT_RELATED_YEAR_FIELD = 34,
+#endif /* U_HIDE_INTERNAL_API */
+
+   /**
      * Number of FieldPosition and UFieldPosition selectors for
      * DateFormat and UDateFormat.
      * Valid selectors range from 0 to UDAT_FIELD_COUNT-1.
      * This value is subject to change if new fields are defined
      * in the future.
      * @stable ICU 3.0
      */
-    UDAT_FIELD_COUNT = 34
+    UDAT_FIELD_COUNT = 35
 
 } UDateFormatField;
 
 
 /**
  * Maps from a UDateFormatField to the corresponding UCalendarDateFields.
  * Note: since the mapping is many-to-one, there is no inverse mapping.
  * @param field the UDateFormatField.
  * @return the UCalendarDateField.  This will be UCAL_FIELD_COUNT in case
  * of error (e.g., the input field is UDAT_FIELD_COUNT).
@@ skipping 45 matching lines @@
 /**
 * Close a UDateFormat.
 * Once closed, a UDateFormat may no longer be used.
 * @param format The formatter to close.
 * @stable ICU 2.0
 */
 U_STABLE void U_EXPORT2 
 udat_close(UDateFormat* format);
 
 
+/* Dont hide UDateFormatBooleanAttribute type with #ifndef U_HIDE_DRAFT_API, needed by virtual methods */
+/* Also don't hide UDAT_BOOLEAN_ATTRIBUTE_COUNT, needed by template class EnumSet<UDateFormatBooleanAttribute,...> */
 /**
  * DateFormat boolean attributes
- * @internal ICU technology preview
+ * 
+ * @draft ICU 53
  */
 typedef enum UDateFormatBooleanAttribute {
-    /**
+#ifndef U_HIDE_DRAFT_API
+   /**
      * indicates whether whitespace is allowed. Includes trailing dot tolerance.
-     * @internal ICU technology preview
+     * @draft ICU 53
      */
-    UDAT_PARSE_ALLOW_WHITESPACE,
+    UDAT_PARSE_ALLOW_WHITESPACE = 0,
     /**
      * indicates tolerance of numeric data when String data may be assumed. eg: UDAT_YEAR_NAME_FIELD,
-     *          UDAT_STANDALONE_MONTH_FIELD, UDAT_DAY_OF_WEEK_FIELD
-     * @internal ICU technology preview
+     * UDAT_STANDALONE_MONTH_FIELD, UDAT_DAY_OF_WEEK_FIELD
+     * @draft ICU 53
      */
-    UDAT_PARSE_ALLOW_NUMERIC,
+    UDAT_PARSE_ALLOW_NUMERIC = 1,
+    /**
+     * indicates tolerance of a partial literal match
+     * @draft ICU 53
+     */
+    UDAT_PARSE_PARTIAL_MATCH = 2,
+    /**  
+     * indicates tolerance of pattern mismatch between input data and specified format pattern. 
+     * e.g. accepting "September" for a month pattern of MMM ("Sep")   
+     * @draft ICU 53
+     */ 
+    UDAT_PARSE_MULTIPLE_PATTERNS_FOR_MATCH = 3,
+#endif /* U_HIDE_DRAFT_API */
     /**
      * count boolean date format constants
-     * @internal ICU technology preview
+     * @draft ICU 53
      */
-    UDAT_BOOLEAN_ATTRIBUTE_COUNT
+    UDAT_BOOLEAN_ATTRIBUTE_COUNT = 4
 } UDateFormatBooleanAttribute;
 
-#ifndef U_HIDE_INTERNAL_API
+#ifndef U_HIDE_DRAFT_API
 /**
  * Get a boolean attribute associated with a UDateFormat.
  * An example would be a true value for a key of UDAT_PARSE_ALLOW_WHITESPACE indicating allowing whitespace leniency.
  * If the formatter does not understand the attribute, -1 is returned.
  * @param fmt The formatter to query.
  * @param attr The attribute to query; e.g. UDAT_PARSE_ALLOW_WHITESPACE.
  * @param status A pointer to an UErrorCode to receive any errors
  * @return The value of attr.
- * @internal technology preview
+ * @draft ICU 53
  */
-U_INTERNAL UBool U_EXPORT2
+U_DRAFT UBool U_EXPORT2
 udat_getBooleanAttribute(const UDateFormat* fmt, UDateFormatBooleanAttribute attr, UErrorCode* status);
 
 /**
  * Set a boolean attribute associated with a UDateFormat.
  * An example of a boolean attribute is parse leniency control.  If the formatter does not understand
  * the attribute, the call is ignored.
  * @param fmt The formatter to set.
  * @param attr The attribute to set; one of UDAT_PARSE_ALLOW_WHITESPACE or UDAT_PARSE_ALLOW_NUMERIC
  * @param newValue The new value of attr.
  * @param status A pointer to an UErrorCode to receive any errors
- * @internal ICU technology preview
+ * @draft ICU 53
  */
-U_INTERNAL void U_EXPORT2
-udat_setBooleanAttribute(UDateFormat *fmt, UDateFormatBooleanAttribute attr, UBool, UErrorCode* status);
+U_DRAFT void U_EXPORT2
+udat_setBooleanAttribute(UDateFormat *fmt, UDateFormatBooleanAttribute attr, UBool newValue, UErrorCode* status);
 
-#endif  /* U_HIDE_INTERNAL_API */
+#endif /* U_HIDE_DRAFT_API */
 
 
 
 #if U_SHOW_CPLUSPLUS_API
 
 U_NAMESPACE_BEGIN
 
 /**
  * \class LocalUDateFormatPointer
  * "Smart pointer" class, closes a UDateFormat via udat_close().
@@ skipping 163 matching lines @@
 * A UDateFormat uses a UNumberFormat to format numbers within a date,
 * for example the day number.
 * @param fmt The formatter to query.
 * @return A pointer to the UNumberFormat used by fmt to format numbers.
 * @see udat_setNumberFormat
 * @stable ICU 2.0
 */
 U_STABLE const UNumberFormat* U_EXPORT2 
 udat_getNumberFormat(const UDateFormat* fmt);
 
+#ifndef U_HIDE_DRAFT_API
+/**
+* Get the UNumberFormat for specific field associated with an UDateFormat.
+* For example: 'y' for year and 'M' for month
+* @param fmt The formatter to query.
+* @param field the field to query
+* @return A pointer to the UNumberFormat used by fmt to format field numbers.
+* @see udat_setNumberFormatForField
+* @draft ICU 54
+*/
+U_DRAFT const UNumberFormat* U_EXPORT2 
+udat_getNumberFormatForField(const UDateFormat* fmt, UChar field);
+
+/**
+* Set the UNumberFormat for specific field associated with an UDateFormat.
+* It can be a single field like: "y"(year) or "M"(month)
+* It can be several field combined together: "yM"(year and month)
+* Note: 
+* 1 symbol field is enough for multiple symbol field (so "y" will override "yy", "yyy")
+* If the field is not numeric, then override has no effect (like "MMM" will use abbreviation, not numerical field)
+*
+* @param fields the fields to set
+* @param fmt The formatter to set.
+* @param numberFormatToSet A pointer to the UNumberFormat to be used by fmt to format numbers.
+* @param status error code passed around (memory allocation or invalid fields)
+* @see udat_getNumberFormatForField
+* @draft ICU 54
+*/
+U_DRAFT void U_EXPORT2 
+udat_adoptNumberFormatForFields(  UDateFormat* fmt,
+                            const UChar* fields,
+                                  UNumberFormat*  numberFormatToSet,
+                                  UErrorCode* status);
+#endif  /* U_HIDE_DRAFT_API */
+
 /**
 * Set the UNumberFormat associated with an UDateFormat.
 * A UDateFormat uses a UNumberFormat to format numbers within a date,
 * for example the day number.
+* This method also clears per field NumberFormat instances previously 
+* set by {@see udat_setNumberFormatForField} 
 * @param fmt The formatter to set.
 * @param numberFormatToSet A pointer to the UNumberFormat to be used by fmt to format numbers.
 * @see udat_getNumberFormat
+* @see udat_setNumberFormatForField
 * @stable ICU 2.0
 */
 U_STABLE void U_EXPORT2 
 udat_setNumberFormat(            UDateFormat*    fmt,
                         const   UNumberFormat*  numberFormatToSet);
 
+#ifndef U_HIDE_DRAFT_API
+/**
+* Adopt the UNumberFormat associated with an UDateFormat.
+* A UDateFormat uses a UNumberFormat to format numbers within a date,
+* for example the day number.
+* @param fmt The formatter to set.
+* @param numberFormatToAdopt A pointer to the UNumberFormat to be used by fmt to format numbers.
+* @see udat_getNumberFormat
+* @draft ICU 54
+*/
+U_DRAFT void U_EXPORT2 
+udat_adoptNumberFormat(            UDateFormat*    fmt,
+                                   UNumberFormat*  numberFormatToAdopt);
+#endif  /* U_HIDE_DRAFT_API */
+
 /**
 * Get a locale for which date/time formatting patterns are available.
 * A UDateFormat in a locale returned by this function will perform the correct
 * formatting and parsing for the locale.
 * @param localeIndex The index of the desired locale.
 * @return A locale for which date/time formatting patterns are available, or 0 if none.
 * @see udat_countAvailable
 * @stable ICU 2.0
 */
 U_STABLE const char* U_EXPORT2 
@@ skipping 115 matching lines @@
     UDAT_STANDALONE_SHORT_WEEKDAYS,
     /** The CLDR-style stand-alone "narrow" weekday names */
     UDAT_STANDALONE_NARROW_WEEKDAYS,
     /** The quarters, for example 1st Quarter */
     UDAT_QUARTERS,
     /** The short quarter names, for example Q1 */
     UDAT_SHORT_QUARTERS,
     /** Standalone context versions of quarters */
     UDAT_STANDALONE_QUARTERS,
     UDAT_STANDALONE_SHORT_QUARTERS,
-#ifndef U_HIDE_DRAFT_API
     /**
      * The CLDR-style short weekday names, e.g. "Su", Mo", etc.
      * These are named "SHORTER" to contrast with the constants using _SHORT_
      * above, which actually get the CLDR-style *abbreviated* versions of the
      * corresponding names.
-     * @draft ICU 51
+     * @stable ICU 51
      */
     UDAT_SHORTER_WEEKDAYS,
     /**
      * Standalone version of UDAT_SHORTER_WEEKDAYS.
-     * @draft ICU 51
+     * @stable ICU 51
      */
     UDAT_STANDALONE_SHORTER_WEEKDAYS
+#ifndef U_HIDE_DRAFT_API
+    ,
+        /**
+         * Cyclic year names (only supported for some calendars, and only for FORMAT usage;
+         * udat_setSymbols not supported for UDAT_CYCLIC_YEARS_WIDE)
+         * @draft ICU 54
+         */
+        UDAT_CYCLIC_YEARS_WIDE,
+        /**
+         * Cyclic year names (only supported for some calendars, and only for FORMAT usage)
+         * @draft ICU 54
+         */
+        UDAT_CYCLIC_YEARS_ABBREVIATED,
+        /**
+         * Cyclic year names (only supported for some calendars, and only for FORMAT usage;
+         * udat_setSymbols not supported for UDAT_CYCLIC_YEARS_NARROW)
+         * @draft ICU 54
+         */
+        UDAT_CYCLIC_YEARS_NARROW,
+        /**
+         * Calendar zodiac  names (only supported for some calendars, and only for FORMAT usage;
+         * udat_setSymbols not supported for UDAT_ZODIAC_NAMES_WIDE)
+         * @draft ICU 54
+         */
+        UDAT_ZODIAC_NAMES_WIDE,
+        /**
+         * Calendar zodiac  names (only supported for some calendars, and only for FORMAT usage)
+         * @draft ICU 54
+         */
+        UDAT_ZODIAC_NAMES_ABBREVIATED,
+        /**
+         * Calendar zodiac  names (only supported for some calendars, and only for FORMAT usage;
+         * udat_setSymbols not supported for UDAT_ZODIAC_NAMES_NARROW)
+         * @draft ICU 54
+         */
+        UDAT_ZODIAC_NAMES_NARROW
 #endif  /* U_HIDE_DRAFT_API */
 } UDateFormatSymbolType;
 
 struct UDateFormatSymbols;
 /** Date format symbols.
  *  For usage in C programs.
  *  @stable ICU 2.6
  */
 typedef struct UDateFormatSymbols UDateFormatSymbols;
 
@@ skipping 67 matching lines @@
  * @param type type of the locale we're looking for (valid or actual) 
  * @param status error code for the operation
  * @return the locale name
  * @stable ICU 2.8
  */
 U_STABLE const char* U_EXPORT2
 udat_getLocaleByType(const UDateFormat *fmt,
                      ULocDataLocaleType type,
                      UErrorCode* status); 
 
-#ifndef U_HIDE_DRAFT_API
 /**
  * Set a particular UDisplayContext value in the formatter, such as
  * UDISPCTX_CAPITALIZATION_FOR_STANDALONE.
  * @param fmt The formatter for which to set a UDisplayContext value.
  * @param value The UDisplayContext value to set.
  * @param status A pointer to an UErrorCode to receive any errors
- * @draft ICU 51
+ * @stable ICU 51
  */
 U_DRAFT void U_EXPORT2
 udat_setContext(UDateFormat* fmt, UDisplayContext value, UErrorCode* status);
 
+#ifndef U_HIDE_DRAFT_API
 /**
  * Get the formatter's UDisplayContext value for the specified UDisplayContextType,
  * such as UDISPCTX_TYPE_CAPITALIZATION.
  * @param fmt The formatter to query.
  * @param type The UDisplayContextType whose value to return
  * @param status A pointer to an UErrorCode to receive any errors
  * @return The UDisplayContextValue for the specified type.
- * @draft ICU 51
+ * @draft ICU 53
  */
 U_DRAFT UDisplayContext U_EXPORT2
-udat_getContext(UDateFormat* fmt, UDisplayContextType type, UErrorCode* status);
+udat_getContext(const UDateFormat* fmt, UDisplayContextType type, UErrorCode* status);
 
 #endif  /* U_HIDE_DRAFT_API */
 
 #ifndef U_HIDE_INTERNAL_API
 /**
 * Extract the date pattern from a UDateFormat set for relative date formatting.
 * The pattern will follow the pattern syntax rules.
 * @param fmt The formatter to query.
 * @param result A pointer to a buffer to receive the pattern.
 * @param resultLength The maximum size of result.
@@ skipping 70 matching lines @@
  * @internal ICU 49
  */
 U_INTERNAL UDateFormatOpener U_EXPORT2
 udat_unregisterOpener(UDateFormatOpener opener, UErrorCode *status);
 #endif  /* U_HIDE_INTERNAL_API */
 
 
 #endif /* #if !UCONFIG_NO_FORMATTING */
 
 #endif