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authornsfisis <nsfisis@gmail.com>2025-08-24 22:54:28 +0900
committernsfisis <nsfisis@gmail.com>2025-08-24 22:54:28 +0900
commit39031e84952db7d1f981c2c748558aacffc0a3e4 (patch)
treec3db5c1c9e7572dc1314493b29c94e912af313a4 /include/stddef.h
parent6b064525a34f1989a928597e9878466b2a8222e5 (diff)
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feat: add include guard
Diffstat (limited to 'include/stddef.h')
-rw-r--r--include/stddef.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/stddef.h b/include/stddef.h
index d4977de..702d91a 100644
--- a/include/stddef.h
+++ b/include/stddef.h
@@ -1,3 +1,6 @@
+#ifndef __DUCC_BUILTIN___STDDEF_H__
+#define __DUCC_BUILTIN___STDDEF_H__
+
#define NULL 0
// TODO: unsigned
@@ -8,3 +11,5 @@ typedef long size_t;
// - nullptr_t (C23)
// - offsetof
// - ptrdiff_t
+
+#endif