diff options
Diffstat (limited to 'source/blender/blenlib/BLI_math_bits.h')
| -rw-r--r-- | source/blender/blenlib/BLI_math_bits.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_math_bits.h b/source/blender/blenlib/BLI_math_bits.h new file mode 100644 index 00000000000..876c0d92e31 --- /dev/null +++ b/source/blender/blenlib/BLI_math_bits.h @@ -0,0 +1,51 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * ***** END GPL LICENSE BLOCK ***** + * */ + +#ifndef __BLI_MATH_BITS_H__ +#define __BLI_MATH_BITS_H__ + +/** \file BLI_math_bits.h + * \ingroup bli + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "BLI_math_inline.h" + +MINLINE unsigned int highest_order_bit_i(unsigned int n); +MINLINE unsigned short highest_order_bit_s(unsigned short n); + +#ifdef __GNUC__ +# define count_bits_i(i) __builtin_popcount(i) +#else +MINLINE int count_bits_i(unsigned int n); +#endif + +#if BLI_MATH_DO_INLINE +#include "intern/math_bits_inline.c" +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* __BLI_MATH_BITS_H__ */ |