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cursor 

Signed-off-by: James Cherry <cherry@CerezoBook.local>
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James Cherry 2026-06-06 20:12:33 -07:00
parent b3458485ba
commit 014678a4f8
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.cursor/rules/cpp-coding-standards.mdc
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---
description: C++ coding standards and formatting for OpenSTA
globs: ["**/*.cc", "**/*.hh", "**/*.h"]
alwaysApply: false
alwaysApply: true
---
# C++ Coding Standards
## File-internal helpers (translation-unit local)
- For helpers used only in one `.cc` file, put them in the **same namespace** as the rest of the implementation (e.g. `namespace sta { ... }`).
- Mark them **`static`** at namespace scope so they have internal linkage.
- **Do not** wrap them in an **anonymous namespace** in this project (no `namespace { ... }` file-static helpers). The user preference is `static` inside the real namespace, not a nested anonymous namespace inside `sta` or at file scope before `sta`.
## Line Width
- **Keep lines under 90 characters** to match `.clang-format` (ColumnLimit: 90).
- Break long lines at logical points: after commas, before operators, after opening parens.
- Only break a line when it would exceed 90 characters. Do not introduce unnecessary line breaks when the expression fits on one line.
- When a break is needed, break at logical points: after commas, before operators. Keep the first argument on the same line as the opening paren (do not break immediately after an opening paren).
## Naming Conventions