Miguel Ruiz
SDL Library
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SDL_bits.h File Reference
Functions for fiddling with bits and bitmasks. More...
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Functions | |
| SDL_FORCE_INLINE int | SDL_MostSignificantBitIndex32 (Uint32 x) |
| Get the index of the most significant bit. | |
Detailed Description
Functions for fiddling with bits and bitmasks.
Definition in file SDL_bits.h.
Function Documentation
| SDL_FORCE_INLINE int SDL_MostSignificantBitIndex32 | ( | Uint32 | x ) |
Get the index of the most significant bit.
Result is undefined when called with 0. This operation can also be stated as "count leading zeroes" and "log base 2".
- Returns:
- Index of the most significant bit, or -1 if the value is 0.
Definition at line 51 of file SDL_bits.h.
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