(Unicode C++) Replacment for Deprecated Crypt2 Compress Functions

The Chilkat Crypt2 compression functions are deprecated and will be removed. This example shows how to duplicate the functionality using the Chilkat Compression class.

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#include <CkCrypt2W.h>
#include <CkStringBuilderW.h>
#include <CkBinDataW.h>
#include <CkCompressionW.h>

void ChilkatSample(void)
    {
    CkCrypt2W crypt;

    // Create data to be compressed.
    CkStringBuilderW sb;
    int i = 0;
    while (i < 25) {
        sb.Append(L"Hello World, this is a test.\r\n");
        i = i + 1;
    }

    // Bzip2 compress the utf-8 byte representation of the string and return the compressed data as base64.
    crypt.put_Charset(L"utf-8");
    crypt.put_EncodingMode(L"base64");
    const wchar_t *compressedStr = crypt.compressStringENC(sb.getAsString());

    wprintf(L"%s\n",compressedStr);

    // Result: 4aeUs+4CAABCWmgzMUFZJlNZZ6znBgAAfNeAABJABQBAAIAmZJwAIABwUNNMAAUqoekYjMp4ixF1FlFxF8i5i1FvFwizF9iwi9RdxaizF7RZi6i0ixF3Fui/i7kinChIM9ZzgwA=

    // The result contains an 8-byte header composed of a 4-byte magic number (0xB394A7E1) and a 4-byte length.
    // Do the following to BZip2 decompress using Chilkat Compression
    CkBinDataW bd;
    bd.AppendEncoded(compressedStr,L"base64");

    // Remove the 8-byte header.
    bd.RemoveChunk(0,8);

    // Decompress
    CkCompressionW compress;
    compress.put_Algorithm(L"bzip2");
    compress.DecompressBd(bd);

    // Get the decompressed string.
    const wchar_t *decompressedStr = bd.getString(L"utf-8");
    wprintf(L"%s\n",decompressedStr);
    }