diff options
Diffstat (limited to 'base/intmath.hh')
| -rw-r--r-- | base/intmath.hh | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/base/intmath.hh b/base/intmath.hh index 77f63fe8d..821514668 100644 --- a/base/intmath.hh +++ b/base/intmath.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003 The Regents of The University of Michigan + * Copyright (c) 2001, 2003 The Regents of The University of Michigan * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -119,6 +119,22 @@ FloorLog2(int64_t x) return FloorLog2((uint64_t)x); } +#if defined(__APPLE__) +int +FloorLog2(size_t x) +{ + assert(x > 0); + assert(sizeof(size_t) == 4 || sizeof(size_t) == 8); + + // It's my hope that this is optimized away? + if (sizeof(size_t) == 4) + return FloorLog2((uint32_t)x); + else if (sizeof(size_t) == 8) + return FloorLog2((uint64_t)x); + +} +#endif + template <class T> inline int CeilLog2(T n) |