gistfile1.txt

#define U_DISABLE_RENAMING 1

#include <stdio.h>

#include "unicode/utypes.h"
#include "unicode/uenum.h"
#include "unicode/uloc.h"
#include "unicode/localpointer.h"
#include "unicode/ucal.h"
#include "unicode/calendar.h"

using namespace icu;

#define CHECK_ERROR if (U_FAILURE(errorCode)) { \
                      printf("%s\n", u_errorName(errorCode)); \
                      return false; \
                     }

bool testCalendar(int32_t y, int32_t m, int32_t d) {
    UErrorCode errorCode = U_ZERO_ERROR;

    LocalPointer<Calendar> chinese(Calendar::createInstance(Locale("zh-CN@calendar=chinese"), errorCode));
    CHECK_ERROR
    chinese->set(UCAL_EXTENDED_YEAR, y);
    chinese->set(UCAL_MONTH, m);
    chinese->set(UCAL_DATE, d);

    int32_t chineseExtendedYear = y;
    int32_t dayOfYear = 1;
    const char* chineseMonthCode;
    int32_t chineseDay = 1;
    while (chineseExtendedYear == y) {
        printf("%d: %d-%s-%d\n", dayOfYear, chineseExtendedYear, chineseMonthCode, chineseDay);
        chinese->add(UCAL_DATE, 1, errorCode);
        CHECK_ERROR
        chineseExtendedYear = chinese->get(UCAL_EXTENDED_YEAR, errorCode);
        chineseMonthCode = chinese->getTemporalMonthCode(errorCode);
        chineseDay = chinese->get(UCAL_DATE, errorCode);
        CHECK_ERROR
        dayOfYear++;
    };
    return true;
}

int main() {
    bool result = true;
    result &= testCalendar(2026, 0, 1);
    return result;
}