X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fendianness.h;h=3de872ac7d592cd8a31ed44ee2833855ea1856a2;hb=fd763f8533b72067aa38a08849e57f23aa300060;hp=cba645bf30554359eab58152b2f9f14150c13b80;hpb=a73db0665d3154b413e1ba16dd15008abc4b46fa;p=wimlib diff --git a/src/endianness.h b/src/endianness.h index cba645bf..3de872ac 100644 --- a/src/endianness.h +++ b/src/endianness.h @@ -8,33 +8,36 @@ /* Watch out for conflicts with ntfs-3g headers... */ #ifndef bswap16 -static inline uint16_t bswap16(uint16_t n) +static inline uint16_t +bswap16(uint16_t n) { return (n << 8) | (n >> 8); } #endif /* ifndef bswap16 */ #ifndef bswap32 -static inline uint32_t bswap32(uint32_t n) +static inline uint32_t +bswap32(uint32_t n) { #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) return __builtin_bswap32(n); #else - return (n << 24) | ((n & 0xff00) << 8) | ((n & 0xff0000) >> 8) | + return (n << 24) | ((n & 0xff00) << 8) | ((n & 0xff0000) >> 8) | (n >> 24); #endif } #endif /* ifndef bswap32 */ #ifndef bswap64 -static inline uint64_t bswap64(uint64_t n) +static inline uint64_t +bswap64(uint64_t n) { -#ifdef __GNUC__ +#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) return __builtin_bswap64(n); #else - return (n << 56) | ((n & 0xff00) << 40) | ((n & 0xff0000) << 24) | - ((n & 0xff000000) << 8) | ((n & 0xff00000000) >> 8) | - ((n & 0xff0000000000) >> 24) | + return (n << 56) | ((n & 0xff00) << 40) | ((n & 0xff0000) << 24) | + ((n & 0xff000000) << 8) | ((n & 0xff00000000) >> 8) | + ((n & 0xff0000000000) >> 24) | ((n & 0xff000000000000) >> 40) | (n >> 56); #endif } @@ -59,28 +62,33 @@ static inline uint64_t bswap64(uint64_t n) # endif #endif -static inline void array_cpu_to_le32(uint32_t *p, uint64_t n) +static inline void +array_cpu_to_le32(uint32_t *p, size_t n) { - while (n--) - *p++ = cpu_to_le32(*p); + for (size_t i = 0; i < n; i++) + p[i] = cpu_to_le32(p[i]); } -static inline void array_le32_to_cpu(uint32_t *p, uint64_t n) +static inline void +array_le32_to_cpu(uint32_t *p, size_t n) { - while (n--) - *p++ = le32_to_cpu(*p); + for (size_t i = 0; i < n; i++) + p[i] = le32_to_cpu(p[i]); } -static inline void array_cpu_to_le64(uint64_t *p, uint64_t n) +static inline void +array_cpu_to_le64(uint64_t *p, size_t n) { - while (n--) - *p++ = cpu_to_le64(*p); + for (size_t i = 0; i < n; i++) + p[i] = cpu_to_le64(p[i]); } -static inline void array_le64_to_cpu(uint64_t *p, uint64_t n) +static inline void +array_le64_to_cpu(uint64_t *p, size_t n) { - while (n--) - *p++ = le64_to_cpu(*p); + for (size_t i = 0; i < n; i++) + p[i] = le64_to_cpu(p[i]); } + #endif /* _WIMLIB_ENDIANNESS_H */