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https://github.com/drasko/codezero.git
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cb561ab262
Added UTCB functions for full ipc that copy buffer or string payloads in secondary message registers. Some posix syscalls now use these utcb functions to copy pathnames.
23 lines
513 B
C
23 lines
513 B
C
#ifndef __LIB_MATH_H__
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#define __LIB_MATH_H__
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#define min(x, y) (((x) < (y)) ? (x) : (y))
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#define max(x, y) (((x) > (y)) ? (x) : (y))
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/* Tests if ranges a-b intersect with range c-d */
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static inline int set_intersection(unsigned long a, unsigned long b,
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unsigned long c, unsigned long d)
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{
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/*
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* Below is the complement (') of the intersection
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* of 2 ranges, much simpler ;-)
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*/
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if (b <= c || a >= d)
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return 0;
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/* The rest is always intersecting */
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return 1;
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}
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#endif /* __LIB_MATH_H__ */
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