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  2. End-of-file - Wikipedia

    en.wikipedia.org/wiki/End-of-file

    In the C standard library, the character-reading functions such as getchar return a value equal to the symbolic value (macro) EOF to indicate that an end-of-file condition has occurred. The actual value of EOF is implementation-dependent and must be negative (it is commonly −1, such as in glibc [ 2 ] ).

  3. C file input/output - Wikipedia

    en.wikipedia.org/wiki/C_file_input/output

    The C programming language provides many standard library functions for file input and output.These functions make up the bulk of the C standard library header <stdio.h>. [1] The functionality descends from a "portable I/O package" written by Mike Lesk at Bell Labs in the early 1970s, [2] and officially became part of the Unix operating system in Version 7.

  4. C Sharp syntax - Wikipedia

    en.wikipedia.org/wiki/C_Sharp_syntax

    This is a feature of C# 9.0. Similar to in scripting languages, top-level statements removes the ceremony of having to declare the Program class with a Main method. Instead, statements can be written directly in one specific file, and that file will be the entry point of the program. Code in other files will still have to be defined in classes.

  5. Assignment (computer science) - Wikipedia

    en.wikipedia.org/wiki/Assignment_(computer_science)

    In a statement such as while ((ch = getchar ())!= EOF) {…}, the return value of a function is used to control a loop while assigning that same value to a variable. In other programming languages, Scheme for example, the return value of an assignment is undefined and such idioms are invalid.

  6. End-of-Text character - Wikipedia

    en.wikipedia.org/wiki/End-of-text_character

    The End-of-Text character (ETX) is a control character used to inform the receiving computer that the end of a record has been reached. This may or may not be an indication that all of the data in a record have been received.

  7. Text file - Wikipedia

    en.wikipedia.org/wiki/Text_file

    A text file exists stored as data within a computer file system. In operating systems such as CP/M, where the operating system does not keep track of the file size in bytes, the end of a text file is denoted by placing one or more special characters, known as an end-of-file (EOF) marker, as

  8. Pure function - Wikipedia

    en.wikipedia.org/wiki/Pure_function

    I/O is inherently impure: input operations undermine referential transparency, and output operations create side effects.Nevertheless, there is a sense in which a function can perform input or output and still be pure, if the sequence of operations on the relevant I/O devices is modeled explicitly as both an argument and a result, and I/O operations are taken to fail when the input sequence ...

  9. Talk:End-of-file - Wikipedia

    en.wikipedia.org/wiki/Talk:End-of-file

    A lot of people blame Ctrl-Z characters to mark the end of disk files on the underlying MS-DOS kernel, and I was trying to clarify that within MS-DOS, it is only COMMAND.COM and certain auxiliary programs (EDLIN etc.) which ever insert Ctrl-Z characters to mark the end of disk files. AnonMoos 06:39, 7 December 2009 (UTC)