diff options
Diffstat (limited to 'bits/byteswap.h')
| -rw-r--r-- | bits/byteswap.h | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/bits/byteswap.h b/bits/byteswap.h index 3ca0ad6986..57d34b461a 100644 --- a/bits/byteswap.h +++ b/bits/byteswap.h @@ -1,5 +1,5 @@ /* Macros to swap the order of bytes in integer values. - Copyright (C) 1997-2012 Free Software Foundation, Inc. + Copyright (C) 1997-2013 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -24,6 +24,7 @@ #define _BITS_BYTESWAP_H 1 #include <features.h> +#include <bits/types.h> /* Swap bytes in 16 bit value. */ #define __bswap_constant_16(x) \ @@ -38,7 +39,7 @@ (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) #ifdef __GNUC__ -# if __GNUC_PREREQ (4, 2) +# if __GNUC_PREREQ (4, 3) static __inline unsigned int __bswap_32 (unsigned int __bsx) { @@ -69,16 +70,16 @@ __bswap_32 (unsigned int __bsx) | (((x) & 0x000000000000ff00ull) << 40) \ | (((x) & 0x00000000000000ffull) << 56))) -# if __GNUC_PREREQ (4, 2) -static __inline unsigned long long int -__bswap_64 (unsigned long long int __bsx) +# if __GNUC_PREREQ (4, 3) +static __inline __uint64_t +__bswap_64 (__uint64_t __bsx) { return __builtin_bswap64 (__bsx); } # else # define __bswap_64(x) \ (__extension__ \ - ({ union { __extension__ unsigned long long int __ll; \ + ({ union { __extension__ __uint64_t __ll; \ unsigned int __l[2]; } __w, __r; \ if (__builtin_constant_p (x)) \ __r.__ll = __bswap_constant_64 (x); \ @@ -90,7 +91,7 @@ __bswap_64 (unsigned long long int __bsx) } \ __r.__ll; })) # endif -#elif __GLIBC_HAVE_LONG_LONG +#else # define __bswap_constant_64(x) \ ((((x) & 0xff00000000000000ull) >> 56) \ | (((x) & 0x00ff000000000000ull) >> 40) \ @@ -101,8 +102,8 @@ __bswap_64 (unsigned long long int __bsx) | (((x) & 0x000000000000ff00ull) << 40) \ | (((x) & 0x00000000000000ffull) << 56)) -static __inline unsigned long long int -__bswap_64 (unsigned long long int __bsx) +static __inline __uint64_t +__bswap_64 (__uint64_t __bsx) { return __bswap_constant_64 (__bsx); } |