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--- c-header-guard [August 22, 2026 at 15:22] – created - external edit 127.0.0.1
+++ c-header-guard [August 22, 2026 at 17:24] (current) – Ivan Janevski
@@ Line 1: / Line 1: @@
 # C Header guard
-**[Header guard](https://en.cppreference.com/w/c/preprocessor/conditional)** is a C/C++ pattern that prevents multiple inclusion of the same header file by wrapping declarations in preprocessor conditionals. The pattern uses `#ifndef`, `#define`, and `#endif` to ensure declarations are processed only once, even if the header is included multiple times. Modern alternative: [[c-pragma-once]].
+**[Header guard](https://en.cppreference.com/w/c/preprocessor/conditional)** is a C/C++ pattern that prevents multiple inclusion of the same header file by wrapping declarations in preprocessor conditionals. The pattern uses `#ifndef`, `#define`, and `#endif` to ensure declarations are processed only once, even if the header is included multiple times.
+Modern alternative: [[c-pragma-once|#pragma once]].
 Use header guards to protect against duplicate declarations and multiple definition errors.