diff options
Diffstat (limited to 'memory/jemalloc/src/include/msvc_compat/strings.h')
-rw-r--r-- | memory/jemalloc/src/include/msvc_compat/strings.h | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/memory/jemalloc/src/include/msvc_compat/strings.h b/memory/jemalloc/src/include/msvc_compat/strings.h deleted file mode 100644 index a3ee25063..000000000 --- a/memory/jemalloc/src/include/msvc_compat/strings.h +++ /dev/null @@ -1,59 +0,0 @@ -#ifndef strings_h -#define strings_h - -/* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided - * for both */ -#ifdef _MSC_VER -# include <intrin.h> -# pragma intrinsic(_BitScanForward) -static __forceinline int ffsl(long x) -{ - unsigned long i; - - if (_BitScanForward(&i, x)) - return (i + 1); - return (0); -} - -static __forceinline int ffs(int x) -{ - - return (ffsl(x)); -} - -# ifdef _M_X64 -# pragma intrinsic(_BitScanForward64) -# endif - -static __forceinline int ffsll(unsigned __int64 x) -{ - unsigned long i; -#ifdef _M_X64 - if (_BitScanForward64(&i, x)) - return (i + 1); - return (0); -#else -// Fallback for 32-bit build where 64-bit version not available -// assuming little endian - union { - unsigned __int64 ll; - unsigned long l[2]; - } s; - - s.ll = x; - - if (_BitScanForward(&i, s.l[0])) - return (i + 1); - else if(_BitScanForward(&i, s.l[1])) - return (i + 33); - return (0); -#endif -} - -#else -# define ffsll(x) __builtin_ffsll(x) -# define ffsl(x) __builtin_ffsl(x) -# define ffs(x) __builtin_ffs(x) -#endif - -#endif /* strings_h */ |