Character (computing) of the “basic execution character set” and (in newer C standards) UTF-8 code units which implies a minimum size of 8 bits. The exact number of bits can be checked via codice_2 macro. By far the most common size is 8 bits, and the POSIX standard "requires" it to be 8 bits. Since Unicode requires at least 21 bits to store a single code point, it is usually impossible to store one inside a single codice_1; instead a variable-length encoding such as UTF-8 must be used. Unfortunately, the fact that a character was historically stored in a single byte led
Consistent Overhead Byte Stuffing end of the packet. There are two equivalent ways to describe the COBS encoding process: These examples show how various data sequences would be encoded by the COBS algorithm. In the examples, all bytes are expressed as hexadecimal values, and encoded data is shown with text formatting to illustrate various features: Below is a diagram using example 3 from above table, to illustrate how each modified data byte is located, and how it is identified as a data byte or an end of frame byte. Examples 7 through 10 show how the overhead varies depending on the data being encoded