diff options
Diffstat (limited to 'source/blender/blenlib/BLI_math_bits.h')
-rw-r--r-- | source/blender/blenlib/BLI_math_bits.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_math_bits.h b/source/blender/blenlib/BLI_math_bits.h index 248b615e3f8..86213dc271f 100644 --- a/source/blender/blenlib/BLI_math_bits.h +++ b/source/blender/blenlib/BLI_math_bits.h @@ -35,10 +35,18 @@ extern "C" { MINLINE int bitscan_forward_i(int a); MINLINE unsigned int bitscan_forward_uint(unsigned int a); +/* Similar to above, but also clears the bit. */ +MINLINE int bitscan_forward_clear_i(int *a); +MINLINE unsigned int bitscan_forward_clear_uint(unsigned int *a); + /* Search the value from MSB to LSB for a set bit. Returns index of this bit. */ MINLINE int bitscan_reverse_i(int a); MINLINE unsigned int bitscan_reverse_uint(unsigned int a); +/* Similar to above, but also clears the bit. */ +MINLINE int bitscan_reverse_clear_i(int *a); +MINLINE unsigned int bitscan_reverse_clear_uint(unsigned int *a); + /* NOTE: Those functions returns 2 to the power of index of highest order bit. */ MINLINE unsigned int highest_order_bit_uint(unsigned int n); MINLINE unsigned short highest_order_bit_s(unsigned short n); |