[PATCH v2 3/6] bswap.h: Define GIT_LITTLE_ENDIAN on msvc as little endian
From: Sebastian Andrzej Siewior <hidden>
Date: 2025-06-11 22:15:01
Subsystem:
the rest · Maintainer:
Linus Torvalds
The Microsoft Visual C++ (MSVC) compiler (as of Visual Studio 2022 version 17.13.6) does not define __BYTE_ORDER__ and its C-library does not define __BYTE_ORDER. The compiler is supported only an arm64 and x86 which are all little endian. Define GIT_BYTE_ORDER on msvc as little endian to avoid further checks. Signed-off-by: Sebastian Andrzej Siewior <redacted> --- compat/bswap.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/compat/bswap.h b/compat/bswap.h
index 0a457542dd76a..fd604d9f7b74b 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h@@ -81,6 +81,10 @@ static inline uint64_t git_bswap64(uint64_t x) #define bswap32(x) _byteswap_ulong(x) #define bswap64(x) _byteswap_uint64(x) +#define GIT_LITTLE_ENDIAN 1234 +#define GIT_BIG_ENDIAN 4321 +#define GIT_BYTE_ORDER GIT_LITTLE_ENDIAN + #endif #if defined(bswap32)
@@ -122,7 +126,7 @@ static inline uint64_t git_bswap64(uint64_t x) # define GIT_LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__ # define GIT_BIG_ENDIAN __ORDER_BIG_ENDIAN__ -#else +#elif !defined(GIT_BYTE_ORDER) # define GIT_BIG_ENDIAN 4321 # define GIT_LITTLE_ENDIAN 1234
--
2.49.0