(C++) Generate ULID

See more ULID/UUID Examples

Generate a ULID using a specified timestamp or the current system date timestamp.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

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#include <CkDateTime.h>

void ChilkatSample(void)
    {
    CkDateTime dt;

    // Set dt to the current system date/time.
    dt.SetFromCurrentSystemTime();

    // Generate a ULID for the current UTC date/time.
    // (i.e. the current UTC UNIX-time)
    bool utc = true;
    const char *ulid = dt.ulidGenerate(utc);
    std::cout << ulid << "\r\n";

    // example result: 01GRGCH4J88RECEN4D4VK4F629

    // Generate a ULID using the local timezone's current time.
    utc = false;
    ulid = dt.ulidGenerate(utc);
    std::cout << ulid << "\r\n";

    // example result: 01GRH14AA82EY9A7S99YYF2QDY

    // -----------------------------------------------
    // To generate a ULID using a specific UNIX timestamp

    // For example, the Unix timestamp for Sun, 05 Feb 2023 14:57:46 GMT
    // is 1675609066

    // For more information about the Epoch Unix Timestamp, see Epoch Unix Timestamp

    // To generate a ULID from a specified date/time, set the CkDateTime and then generate the ULID.
    CkDateTime dt2;
    utc = true;
    dt2.SetFromUnixTime(utc,1675609066);
    ulid = dt2.ulidGenerate(utc);
    std::cout << ulid << "\r\n";

    // example result: 01GRH1AJGG3P5K04DJHN3QJCX3
    }