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// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#ifndef __UNUMBEROPTIONS_H__
#define __UNUMBEROPTIONS_H__
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
/**
* \file
* \brief C API: Header-only input options for various number formatting APIs.
*
* You do not normally need to include this header file directly, because it is included in all
* files that use these enums.
*/
/** The possible number format rounding modes.
*
* <p>
* For more detail on rounding modes, see:
* https://unicode-org.github.io/icu/userguide/format_parse/numbers/rounding-modes
*
* @stable ICU 2.0
*/
typedef enum UNumberFormatRoundingMode {
UNUM_ROUND_CEILING,
UNUM_ROUND_FLOOR,
UNUM_ROUND_DOWN,
UNUM_ROUND_UP,
/**
* Half-even rounding
* @stable, ICU 3.8
*/
UNUM_ROUND_HALFEVEN,
#ifndef U_HIDE_DEPRECATED_API
/**
* Half-even rounding, misspelled name
* @deprecated, ICU 3.8
*/
UNUM_FOUND_HALFEVEN = UNUM_ROUND_HALFEVEN,
#endif /* U_HIDE_DEPRECATED_API */
UNUM_ROUND_HALFDOWN = UNUM_ROUND_HALFEVEN + 1,
UNUM_ROUND_HALFUP,
/**
* ROUND_UNNECESSARY reports an error if formatted result is not exact.
* @stable ICU 4.8
*/
UNUM_ROUND_UNNECESSARY,
/**
* Rounds ties toward the odd number.
* @stable ICU 69
*/
UNUM_ROUND_HALF_ODD,
/**
* Rounds ties toward +∞.
* @stable ICU 69
*/
UNUM_ROUND_HALF_CEILING,
/**
* Rounds ties toward -∞.
* @stable ICU 69
*/
UNUM_ROUND_HALF_FLOOR,
} UNumberFormatRoundingMode;
/**
* An enum declaring the strategy for when and how to display grouping separators (i.e., the
* separator, often a comma or period, after every 2-3 powers of ten). The choices are several
* pre-built strategies for different use cases that employ locale data whenever possible. Example
* outputs for 1234 and 1234567 in <em>en-IN</em>:
*
* <ul>
* <li>OFF: 1234 and 12345
* <li>MIN2: 1234 and 12,34,567
* <li>AUTO: 1,234 and 12,34,567
* <li>ON_ALIGNED: 1,234 and 12,34,567
* <li>THOUSANDS: 1,234 and 1,234,567
* </ul>
*
* <p>
* The default is AUTO, which displays grouping separators unless the locale data says that grouping
* is not customary. To force grouping for all numbers greater than 1000 consistently across locales,
* use ON_ALIGNED. On the other hand, to display grouping less frequently than the default, use MIN2
* or OFF. See the docs of each option for details.
*
* <p>
* Note: This enum specifies the strategy for grouping sizes. To set which character to use as the
* grouping separator, use the "symbols" setter.
*
* @stable ICU 63
*/
typedef enum UNumberGroupingStrategy {
/**
* Do not display grouping separators in any locale.
*
* @stable ICU 61
*/
UNUM_GROUPING_OFF,
/**
* Display grouping using locale defaults, except do not show grouping on values smaller than
* 10000 (such that there is a <em>minimum of two digits</em> before the first separator).
*
* <p>
* Note that locales may restrict grouping separators to be displayed only on 1 million or
* greater (for example, ee and hu) or disable grouping altogether (for example, bg currency).
*
* <p>
* Locale data is used to determine whether to separate larger numbers into groups of 2
* (customary in South Asia) or groups of 3 (customary in Europe and the Americas).
*
* @stable ICU 61
*/
UNUM_GROUPING_MIN2,
/**
* Display grouping using the default strategy for all locales. This is the default behavior.
*
* <p>
* Note that locales may restrict grouping separators to be displayed only on 1 million or
* greater (for example, ee and hu) or disable grouping altogether (for example, bg currency).
*
* <p>
* Locale data is used to determine whether to separate larger numbers into groups of 2
* (customary in South Asia) or groups of 3 (customary in Europe and the Americas).
*
* @stable ICU 61
*/
UNUM_GROUPING_AUTO,
/**
* Always display the grouping separator on values of at least 1000.
*
* <p>
* This option ignores the locale data that restricts or disables grouping, described in MIN2 and
* AUTO. This option may be useful to normalize the alignment of numbers, such as in a
* spreadsheet.
*
* <p>
* Locale data is used to determine whether to separate larger numbers into groups of 2
* (customary in South Asia) or groups of 3 (customary in Europe and the Americas).
*
* @stable ICU 61
*/
UNUM_GROUPING_ON_ALIGNED,
/**
* Use the Western defaults: groups of 3 and enabled for all numbers 1000 or greater. Do not use
* locale data for determining the grouping strategy.
*
* @stable ICU 61
*/
UNUM_GROUPING_THOUSANDS
#ifndef U_HIDE_INTERNAL_API
,
/**
* One more than the highest UNumberGroupingStrategy value.
*
* @internal ICU 62: The numeric value may change over time; see ICU ticket #12420.
*/
UNUM_GROUPING_COUNT
#endif /* U_HIDE_INTERNAL_API */
} UNumberGroupingStrategy;
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif //__UNUMBEROPTIONS_H__
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