/** * \file * \brief C API: Time zone rule classes
*/
#include"unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include"unicode/uobject.h"
/** * A TimeZoneRule. Use the zrule_* API to manipulate. Create with * zrule_open*, and destroy with zrule_close.
*/ struct ZRule; typedefstruct ZRule ZRule;
/** * An InitialTimeZoneRule. Use the izrule_* API to manipulate. Create with * izrule_open*, and destroy with izrule_close.
*/ struct IZRule; typedefstruct IZRule IZRule;
/** * An AnnualTimeZoneRule. Use the azrule_* API to manipulate. Create with * azrule_open*, and destroy with azrule_close.
*/ struct AZRule; typedefstruct AZRule AZRule;
/********************************************************************* * ZRule API
*********************************************************************/
/** * Disposes of the storage used by a ZRule object. This function should * be called exactly once for objects returned by zrule_open*. * @param set the object to dispose of
*/
U_CAPI void U_EXPORT2
zrule_close(ZRule* rule);
/** * Returns true if rule1 is identical to rule2 * and vis versa. * @param rule1 to be checked for containment * @param rule2 to be checked for containment * @return true if the test condition is met
*/
U_CAPI UBool U_EXPORT2
zrule_equals(const ZRule* rule1, const ZRule* rule2);
/** * Fills in "name" with the name of this time zone. * @param rule, the Zrule to use * @param name Receives the name of this time zone. * @param nameLength, length of the returned name
*/
U_CAPI void U_EXPORT2
zrule_getName(ZRule* rule, UChar* name, int32_t nameLength);
/** * Gets the standard time offset. * @param rule, the Zrule to use * @return The standard time offset from UTC in milliseconds.
*/
U_CAPI int32_t U_EXPORT2
zrule_getRawOffset(ZRule* rule);
/** * Gets the amount of daylight saving delta time from the standard time. * @param rule, the Zrule to use * @return The amount of daylight saving offset used by this rule * in milliseconds.
*/
U_CAPI int32_t U_EXPORT2
zrule_getDSTSavings(ZRule* rule);
/** * Returns if this rule represents the same rule and offsets as another. * When two ZRule objects differ only its names, this method * returns true. * @param rule1 to be checked for containment * @param rule2 to be checked for containment * @return true if the other <code>TimeZoneRule</code> is the same as this one.
*/
U_CAPI UBool U_EXPORT2
zrule_isEquivalentTo(ZRule* rule1, ZRule* rule2);
/********************************************************************* * IZRule API
*********************************************************************/
/** * Constructs an IZRule with the name, the GMT offset of its * standard time and the amount of daylight saving offset adjustment. * @param name The time zone name. * @param nameLength The length of the time zone name. * @param rawOffset The UTC offset of its standard time in milliseconds. * @param dstSavings The amount of daylight saving offset adjustment in milliseconds. * If this ia a rule for standard time, the value of this argument is 0.
*/
U_CAPI IZRule* U_EXPORT2
izrule_open(const UChar* name, int32_t nameLength, int32_t rawOffset, int32_t dstSavings);
/** * Disposes of the storage used by a IZRule object. This function should * be called exactly once for objects returned by izrule_open*. * @param set the object to dispose of
*/
U_CAPI void U_EXPORT2
izrule_close(IZRule* rule);
/** * Returns a copy of this object. * @param rule the original IZRule * @return the newly allocated copy of the IZRule
*/
U_CAPI IZRule* U_EXPORT2
izrule_clone(IZRule *rule);
/** * Returns true if rule1 is identical to rule2 * and vis versa. * @param rule1 to be checked for containment * @param rule2 to be checked for containment * @return true if the test condition is met
*/
U_CAPI UBool U_EXPORT2
izrule_equals(const IZRule* rule1, const IZRule* rule2);
/** * Fills in "name" with the name of this time zone. * @param rule, the IZrule to use * @param name Receives the name of this time zone. * @param nameLength, length of the returned name
*/
U_CAPI void U_EXPORT2
izrule_getName(IZRule* rule, UChar* & name, int32_t & nameLength);
/** * Gets the standard time offset. * @param rule, the IZrule to use * @return The standard time offset from UTC in milliseconds.
*/
U_CAPI int32_t U_EXPORT2
izrule_getRawOffset(IZRule* rule);
/** * Gets the amount of daylight saving delta time from the standard time. * @param rule, the IZrule to use * @return The amount of daylight saving offset used by this rule * in milliseconds.
*/
U_CAPI int32_t U_EXPORT2
izrule_getDSTSavings(IZRule* rule);
/** * Returns if this rule represents the same rule and offsets as another. * When two IZRule objects differ only its names, this method * returns true. * @param rule1 to be checked for containment * @param rule2 to be checked for containment * @return true if the other <code>TimeZoneRule</code> is the same as this one.
*/
U_CAPI UBool U_EXPORT2
izrule_isEquivalentTo(IZRule* rule1, IZRule* rule2);
/** * Gets the very first time when this rule takes effect. * @param rule The IZrule to use * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the very first time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged.
*/
U_CAPI UBool U_EXPORT2
izrule_getFirstStart(IZRule* rule, int32_t prevRawOffset, int32_t prevDSTSavings,
UDate& result);
/** * Gets the final time when this rule takes effect. * @param rule The IZrule to use * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param result Receives the final time when this rule takes effect. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged.
*/
U_CAPI UBool U_EXPORT2
izrule_getFinalStart(IZRule* rule, int32_t prevRawOffset, int32_t prevDSTSavings,
UDate& result);
/** * Gets the first time when this rule takes effect after the specified time. * @param rule The IZrule to use * @param base The first start time after this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The first time when this rule takes effect after * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged.
*/
U_CAPI UBool U_EXPORT2
izrule_getNextStart(IZRule* rule, UDate base, int32_t prevRawOffset,
int32_t prevDSTSavings, UBool inclusive, UDate& result);
/** * Gets the most recent time when this rule takes effect before the specified time. * @param rule The IZrule to use * @param base The most recent time before this base time will be returned. * @param prevRawOffset The standard time offset from UTC before this rule * takes effect in milliseconds. * @param prevDSTSavings The amount of daylight saving offset from the * standard time. * @param inclusive Whether the base time is inclusive or not. * @param result Receives The most recent time when this rule takes effect before * the specified base time. * @return true if the start time is available. When false is returned, output parameter * "result" is unchanged.
*/
U_CAPI UBool U_EXPORT2
izrule_getPreviousStart(IZRule* rule, UDate base, int32_t prevRawOffset,
int32_t prevDSTSavings, UBool inclusive, UDate& result);
/** * 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() == * . erived::getStaticClassID()) ... * </pre> * @param rule The IZrule to use * @return The class ID for all objects of this class.
*/
U_CAPI UClassID U_EXPORT2
izrule_getStaticClassID(IZRule* rule);
/** * 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. * * @param rule The IZrule to use * @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.
*/
U_CAPI UClassID U_EXPORT2
izrule_getDynamicClassID(IZRule* rule);
#endif
#endif
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