diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/math_func.hpp | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/core/math_func.hpp b/src/core/math_func.hpp index e2cc8b89c..6a0f5c17a 100644 --- a/src/core/math_func.hpp +++ b/src/core/math_func.hpp @@ -101,8 +101,28 @@ static FORCEINLINE T abs(const T a) template <typename T> static FORCEINLINE T Align(const T x, uint n) { + assert((n & (n - 1)) == 0 && n != 0); n--; - return (T)((x + n) & ~(n)); + return (T)((x + n) & ~((T)n)); +} + +/** + * Return the smallest multiple of n equal or greater than x + * Applies to pointers only + * + * @note n must be a power of 2 + * @param x The min value + * @param n The base of the number we are searching + * @return The smallest multiple of n equal or greater than x + * @see Align() + */ + +assert_compile(sizeof(size_t) == sizeof(void *)); + +template <typename T> +static FORCEINLINE T *AlignPtr(T *x, uint n) +{ + return (T *)Align((size_t)x, n); } /** |