Simplify the implementation and allow callers to use expressions with
side-effects by turning the macros get_be16, get_be32 and put_be32 into
inline functions.
Signed-off-by: Rene Scharfe <l.s.r@xxxxxx>
---
All these redundant casts started to bother me, so I tried to come up
with nice and clean inline functions. Successfully? You tell me.
They are longer, but less cluttered. Would it punish -O0 builds? Is
it all worth it?
compat/bswap.h | 38 ++++++++++++++++++++++++--------------
1 file changed, 24 insertions(+), 14 deletions(-)
diff --git a/compat/bswap.h b/compat/bswap.h
index 4582c1107a..7d063e9e40 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -162,19 +162,29 @@ static inline uint64_t git_bswap64(uint64_t x)
#else
-#define get_be16(p) ( \
- (*((unsigned char *)(p) + 0) << 8) | \
- (*((unsigned char *)(p) + 1) << 0) )
-#define get_be32(p) ( \
- ((uint32_t)*((unsigned char *)(p) + 0) << 24) | \
- ((uint32_t)*((unsigned char *)(p) + 1) << 16) | \
- ((uint32_t)*((unsigned char *)(p) + 2) << 8) | \
- ((uint32_t)*((unsigned char *)(p) + 3) << 0) )
-#define put_be32(p, v) do { \
- unsigned int __v = (v); \
- *((unsigned char *)(p) + 0) = __v >> 24; \
- *((unsigned char *)(p) + 1) = __v >> 16; \
- *((unsigned char *)(p) + 2) = __v >> 8; \
- *((unsigned char *)(p) + 3) = __v >> 0; } while (0)
+static inline uint16_t get_be16(const void *ptr)
+{
+ const unsigned char *p = ptr;
+ return (uint16_t)p[0] << 8 |
+ (uint16_t)p[1] << 0;
+}
+
+static inline uint32_t get_be32(const void *ptr)
+{
+ const unsigned char *p = ptr;
+ return (uint32_t)p[0] << 24 |
+ (uint32_t)p[1] << 16 |
+ (uint32_t)p[2] << 8 |
+ (uint32_t)p[3] << 0;
+}
+
+static inline void put_be32(void *ptr, uint32_t value)
+{
+ unsigned char *p = ptr;
+ p[0] = value >> 24;
+ p[1] = value >> 16;
+ p[2] = value >> 8;
+ p[3] = value >> 0;
+}
#endif
--
2.13.3
