Advanced Binary for Programming & Computer Science: Logical, Bitwise and Arithmetic Operations, and Data Encoding and Representation by Tanna Sunil

Author:Tanna, Sunil [Tanna, Sunil]
Language: eng
Format: azw3
Publisher: Answers 2000 Limited
Published: 2018-08-27T16:00:00+00:00

While terminated strings (and null-terminated strings in particular) are probably the most widely used method of representing strings, they do have several important limitations:

The termination character can never be used as a part of a string. For example, a null-terminated string can never contain a NUL character.

Searching for the end of a string (for example to append adding information to it) requires a linear search through the entire string from the start to find the termination character.

If copying a terminated string into a fixed size block of memory, or if appending to an existing string stored within a block of memory, care must be taken to ensure not to go past the end of the memory block and accidentally overwrite other data in the computer's memory. This is a common source of bugs in computer programs. Moreover, as the content of strings often comes from user input, or from the internet, these bugs can also be security flaws that attackers can exploit to gain unauthorised access to computers or data.

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