Programming, C++

[data compression]
RLE - run length encoding
MTF - move to front
BWT - burrows wheeler
Diatomic encoding
The static model

[bit io routines]
Bits & bytes
Bit io demo

'Bit IO Demo'

Simple Bit IO routine source code and executable for anlaysing file bytes / bits. Additional information for each function is displayed by the application i.e. the range of bytes read in and / or the filesize.

• Write out 256 chars. Click to write out 256 chars (0-255) to a file anywhere on your PC. The default file extension is .TXT - then open the file to see the contents.
• Read Bytes as Bits Click to read in a file and display the bits per byte.
• Count Byte Occurance This will read in a file byte by byte, store the symbol counts and then bubble sort the array before displaying the resulting counts alongside their respective position in the array and the byte itself.
• Count of Byte Pairs This will read in a file 2 bytes at a time, store the symbol counts and then display the resulting counts alongside their respective bytes (both as chars & ascii codes).
• Count of Byte Triples This will read in a file 3 bytes at a time, store the symbol counts and then display the resulting counts alongside their respective bytes (both as chars & ascii codes).
• Read & Write as Integers Click to read in a file, pad out their ascii equivalent codes (to 3 digit integers) and save them as one long code string to a file in the same directory on your PC.
• Count Pairs of Bits In Byte Click to count the number of bit pairs in all bytes within a file i.e. '00', '00' and '01' will increment their respective counts to 2 and 1. The weight is the number of seperate occurances of bit pairs within the file bytes and I also supply a breakdown in byte form of the total bits that make up the entire filesize.
• Clear Click to clear the current display.