18 lines
627 B
C
18 lines
627 B
C
/* Public domain. */
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#ifndef _LINUX_MATH_H
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#define _LINUX_MATH_H
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#define mult_frac(x, n, d) (((x) * (n)) / (d))
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#define round_up(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
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#define round_down(x, y) (((x) / (y)) * (y)) /* y is power of two */
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#define rounddown(x, y) (((x) / (y)) * (y)) /* arbitrary y */
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#define DIV_ROUND_UP(x, y) (((x) + ((y) - 1)) / (y))
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#define DIV_ROUND_UP_ULL(x, y) DIV_ROUND_UP(x, y)
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#define DIV_ROUND_DOWN(x, y) ((x) / (y))
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#define DIV_ROUND_DOWN_ULL(x, y) DIV_ROUND_DOWN(x, y)
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#define DIV_ROUND_CLOSEST(x, y) (((x) + ((y) / 2)) / (y))
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#define DIV_ROUND_CLOSEST_ULL(x, y) DIV_ROUND_CLOSEST(x, y)
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#endif
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