From dae2c5bda49f179e4e64a5790f3fa5a25b693507 Mon Sep 17 00:00:00 2001
From: Quinn <quinnthepigeon@proton.me>
Date: Thu, 22 Jan 2026 13:05:36 +0100
Subject: [PATCH] Add `force` attribute to the casts in `endian.h`

---
 include/mcaselector-lite/endian.h | 48 +++++++++++++++----------------
 include/mcaselector-lite/types.h  |  2 ++
 2 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/include/mcaselector-lite/endian.h b/include/mcaselector-lite/endian.h
index 10da1de..8a73149 100644
--- a/include/mcaselector-lite/endian.h
+++ b/include/mcaselector-lite/endian.h
@@ -9,31 +9,31 @@
 #include <mcaselector-lite/types.h>
 
 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-static inline u16  cvt_le16toh(le16 le) { return (u16)le; }
-static inline u32  cvt_le32toh(le32 le) { return (u32)le; }
-static inline u64  cvt_le64toh(le64 le) { return (u64)le; }
-static inline le16 cvt_htole16(u16 u) { return (le16)u; }
-static inline le32 cvt_htole32(u32 u) { return (le32)u; }
-static inline le64 cvt_htole64(u64 u) { return (le64)u; }
-static inline u16  cvt_be16toh(be16 be) { return __builtin_bswap16((u16)be); }
-static inline u32  cvt_be32toh(be32 be) { return __builtin_bswap32((u32)be); }
-static inline u64  cvt_be64toh(be64 be) { return __builtin_bswap64((u64)be); }
-static inline be16 cvt_htobe16(u16 u) { return (be16)__builtin_bswap16(u); }
-static inline be32 cvt_htobe32(u32 u) { return (be32)__builtin_bswap32(u); }
-static inline be64 cvt_htobe64(u64 u) { return (be64)__builtin_bswap64(u); }
+static inline u16  cvt_le16toh(le16 le) { return (FORCE u16)le; }
+static inline u32  cvt_le32toh(le32 le) { return (FORCE u32)le; }
+static inline u64  cvt_le64toh(le64 le) { return (FORCE u64)le; }
+static inline le16 cvt_htole16(u16 u) { return (FORCE le16)u; }
+static inline le32 cvt_htole32(u32 u) { return (FORCE le32)u; }
+static inline le64 cvt_htole64(u64 u) { return (FORCE le64)u; }
+static inline u16  cvt_be16toh(be16 be) { return __builtin_bswap16((FORCE u16)be); }
+static inline u32  cvt_be32toh(be32 be) { return __builtin_bswap32((FORCE u32)be); }
+static inline u64  cvt_be64toh(be64 be) { return __builtin_bswap64((FORCE u64)be); }
+static inline be16 cvt_htobe16(u16 u) { return (FORCE be16)__builtin_bswap16(u); }
+static inline be32 cvt_htobe32(u32 u) { return (FORCE be32)__builtin_bswap32(u); }
+static inline be64 cvt_htobe64(u64 u) { return (FORCE be64)__builtin_bswap64(u); }
 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
-static inline u16  cvt_le16toh(le16 le) { return __builtin_bswap16((u16)le); }
-static inline u32  cvt_le32toh(le32 le) { return __builtin_bswap32((u32)le); }
-static inline u64  cvt_le64toh(le64 le) { return __builtin_bswap64((u64)le); }
-static inline le16 cvt_htole16(u16 u) { return (le16)__builtin_bswap16(u); }
-static inline le32 cvt_htole32(u32 u) { return (le32)__builtin_bswap32(u); }
-static inline le64 cvt_htole64(u64 u) { return (le64)__builtin_bswap64(u); }
-static inline u16  cvt_be16toh(be16 be) { return (u16)be; }
-static inline u32  cvt_be32toh(be32 be) { return (u32)be; }
-static inline u64  cvt_be64toh(be64 be) { return (u64)be; }
-static inline be16 cvt_htobe16(u16 u) { return (be16)u; }
-static inline be32 cvt_htobe32(u32 u) { return (be32)u; }
-static inline be64 cvt_htobe64(u64 u) { return (be64)u; }
+static inline u16  cvt_le16toh(le16 le) { return __builtin_bswap16((FORCE u16)le); }
+static inline u32  cvt_le32toh(le32 le) { return __builtin_bswap32((FORCE u32)le); }
+static inline u64  cvt_le64toh(le64 le) { return __builtin_bswap64((FORCE u64)le); }
+static inline le16 cvt_htole16(u16 u) { return (FORCE le16)__builtin_bswap16(u); }
+static inline le32 cvt_htole32(u32 u) { return (FORCE le32)__builtin_bswap32(u); }
+static inline le64 cvt_htole64(u64 u) { return (FORCE le64)__builtin_bswap64(u); }
+static inline u16  cvt_be16toh(be16 be) { return (FORCE u16)be; }
+static inline u32  cvt_be32toh(be32 be) { return (FORCE u32)be; }
+static inline u64  cvt_be64toh(be64 be) { return (FORCE u64)be; }
+static inline be16 cvt_htobe16(u16 u) { return (FORCE be16)u; }
+static inline be32 cvt_htobe32(u32 u) { return (FORCE be32)u; }
+static inline be64 cvt_htobe64(u64 u) { return (FORCE be64)u; }
 #else
 #error "Machine architecture unsupported! Expected either big-endian or little-endian."
 #endif
diff --git a/include/mcaselector-lite/types.h b/include/mcaselector-lite/types.h
index 9c3dada..9f6d0e7 100644
--- a/include/mcaselector-lite/types.h
+++ b/include/mcaselector-lite/types.h
@@ -25,8 +25,10 @@ typedef __UINTPTR_TYPE__     uintptr;
 
 #ifdef __CHECKER__
 #define BITWISE __attribute__((bitwise))
+#define FORCE __attribute__((force))
 #else
 #define BITWISE
+#define FORCE
 #endif
 
 typedef u16 BITWISE be16;