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In computer programming, indentation style is a convention, a.k.a. style, governing the indentation of blocks of source code.An indentation style generally involves consistent width of whitespace (indentation size) before each line of a block, so that the lines of code appear to be related, and dictates whether to use space or tab characters for the indentation whitespace.
Reducing the cost of software maintenance is the most often cited reason for following coding conventions. In the introductory section on code conventions for the Java programming language, Sun Microsystems offers the following reasoning: [2]
As free-form text, comments can be styled in a wide variety of ways. Many prefer a style that is consistent, non-obstructive, easy to modify, and difficult to break. As some claim that a level of consistency is valuable and worthwhile, a consistent commenting style is sometimes agreed upon before a project starts or emerges as development ...
In C and C++, keywords and standard library identifiers are mostly lowercase. In the C standard library, abbreviated names are the most common (e.g. isalnum for a function testing whether a character is alphanumeric), while the C++ standard library often uses an underscore as a word separator (e.g. out_of_range).
cpplint or cpplint.py is an open source lint-like tool developed by Google, designed to ensure that C++ code conforms to Google's coding style guides. Therefore cpplint implements what Google considers best practices in C++ coding. The script cpplint.py reads source code files and flags deviations from the style guide. It also identifies syntax ...
The Visual Studio and Windows SDK include the program undname which prints the C-style function prototype for a given mangled name. On Microsoft Windows, the Intel compiler [2] and Clang [3] uses the Visual C++ name mangling for compatibility.
Kotlin style guide: 4 spaces [28] Lua: Yes: Lua style guide: 2 spaces [29] Perl: Yes: Larry Wall prefers 4 spaces [30] PHP: Yes: Drupal use 2 spaces [31] PEAR and Zend use 4 spaces [32] [33] CodeIgniter and WordPress use tabs [34] [35] PSR-2 specifies 4 spaces [36] PowerShell: Yes: Unofficial PowerShell Best Practices and Style Guide: 4 spaces ...
semicolons terminate word definitions; space terminates word use GFA BASIC: newline terminated Go: semicolon separated (inserted by compiler) Haskell: in do-notation: newline separated, in do-notation with braces: semicolon separated Java: semicolon terminated JavaScript: semicolon separated (but often inserted as statement terminator) Kotlin