diff options
Diffstat (limited to '')
| -rw-r--r-- | src/internals.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/internals.h b/src/internals.h index da8ce0c..a9d9af5 100644 --- a/src/internals.h +++ b/src/internals.h @@ -150,15 +150,15 @@ zmemset(zahl_char_t *a, register zahl_char_t v, register size_t n) #endif #if defined(__GNUC__) || defined(__clang__) -# define libzahl_msb_nz_lu(x) (8 * sizeof(unsigned long int) - (size_t)__builtin_clzl(x)); -# define libzahl_msb_nz_llu(x) (8 * sizeof(unsigned long long int) - (size_t)__builtin_clzll(x)); +# define libzahl_msb_nz_lu(x) (8 * sizeof(unsigned long int) - 1 - (size_t)__builtin_clzl(x)) +# define libzahl_msb_nz_llu(x) (8 * sizeof(unsigned long long int) - 1 - (size_t)__builtin_clzll(x)) #else static inline size_t libzahl_msb_nz_lu(unsigned long int x) { size_t r = 0; for (; x; x >>= 1, r++); - return r; + return r - 1; } static inline size_t @@ -166,7 +166,7 @@ libzahl_msb_nz_llu(unsigned long long int x) { size_t r = 0; for (; x; x >>= 1, r++); - return r; + return r - 1; } #endif |