C++

Demonstrate Binary Data Encoding Methods

Demonstrates binary data encoding methods.

Note: This example requires Chilkat v9.5.0.64 or later.

C++

#include <CkBinData.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    CkBinData binData;

    //  Append 10 bytes: 00, 01, 02, 03, 04, 05, 06, 07, 08, 09
    binData.AppendEncoded("00010203040506070809","hex");

    //  Show that binData contains 10 bytes.
    std::cout << "num bytes = " << binData.get_NumBytes() << "\r\n";

    //  Get as base64
    std::cout << "base64: " << binData.getEncoded("base64") << "\r\n";

    //  Get a chunk of the binary data.
    //  The 1st byte is at index 0.
    //  The output should be "02030405"
    int offset = 2;
    int numBytes = 4;
    std::cout << "chunk: " << binData.getEncodedChunk(offset,numBytes,"hex") << "\r\n";

    //  Copy the bytes to a StringBuilder using the base64url encoding
    CkStringBuilder sb;
    binData.GetEncodedSb("base64url",sb);
    std::cout << "base64url: " << sb.getAsString() << "\r\n";

    //  Remove a chunk from the binary data
    offset = 2;
    numBytes = 4;
    binData.RemoveChunk(offset,numBytes);
    //  The bytes remaining are 00,01,06,07,08,and 09
    std::cout << "after removing chunk: " << binData.getEncoded("hex") << "\r\n";
    }