180006Cstyle

180006Cstyle is a coding style guideline intended for C-family languages, focusing on readability, consistency, and maintainability. Although not an official standard, it emerged in online developer communities around 2018 as part of discussions associated with a project codename 180006, with "Cstyle" signaling a preference for C-like syntax and conventions.

Origin and scope: The term combines the numeric code 180006 with the word Cstyle. In practice, it refers to a family of conventions rather than a single document, with project-specific adaptations. Core areas include formatting rules such as indentation, brace placement, line length, and include order; naming conventions for identifiers; and documentation practices. The style aims to harmonize code structure across modules and teams.

Key rules: Indentation is typically four spaces; braces follow the K&R style; spaces around operators and after commas; a line length cap is common. Header guards or #pragma once are recommended for headers, and include order is often standardized. Naming uses camelCase for functions and variables, PascalCase for types, and ALL_CAPS for constants and macros; macro usage is generally minimized. Public interfaces are documented with brief comments and doxygen-style tags to aid API exploration.

Adoption and reception: Several open-source projects and internal coding guides reference 180006Cstyle as a practical baseline, though many communities treat it as one of several viable options rather than a universal standard. Tooling support exists through common linters and formatters, enabling automated enforcement in continuous integration pipelines. Example:

// Returns the sum of a and b

static inline int max(int a, int b) {

return (a > b) ? a : b;

}