2 * Copyright (c) 2001-2002, David Janssens
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6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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28 * Get the minimum of two integers.
30 * returns a if a < b else b
32 int int_min(int a, int b)
38 * Get the maximum of two integers.
40 * returns a if a > b else b
42 int int_max(int a, int b)
48 * Clamp an integer inside an interval.
50 * return a if (min < a < max)
51 * return max if (a > max)
52 * return min if (a < min)
54 int int_clamp(int a, int min, int max)
64 * Get absolute value of integer.
68 return a < 0 ? -a : a;
72 * Divide an integer and round upwards.
76 int int_ceildiv(int a, int b)
78 return (a + b - 1) / b;
82 * Divide an integer by a power of 2 and round upwards.
86 int int_ceildivpow2(int a, int b)
88 return (a + (1 << b) - 1) >> b;
92 * Divide an integer by a power of 2 and round downwards.
96 int int_floordivpow2(int a, int b)
102 * Get logarithm of an integer and round downwards.
106 int int_floorlog2(int a)
109 for (l = 0; a > 1; l++) {