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19 lines
194 B
C
19 lines
194 B
C
#include <u.h>
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#include <libc.h>
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#define MASK 0x7fffffffL
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long
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lnrand(long n)
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{
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long slop, v;
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if(n < 0)
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return n;
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slop = MASK % n;
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do
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v = lrand();
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while(v <= slop);
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return v % n;
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}
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