0996faa3d7
this is a minor fix to increase the period of the obsolete rand_r a bit. an include header in __rand48_step.c is fixed as well.
14 lines
299 B
C
14 lines
299 B
C
#include <stdlib.h>
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#include <stdint.h>
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uint64_t __rand48_step(unsigned short *xi, unsigned short *lc)
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{
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uint64_t a, x;
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x = xi[0] | xi[1]<<16 | xi[2]+0ULL<<32;
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a = lc[0] | lc[1]<<16 | lc[2]+0ULL<<32;
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x = a*x + lc[3];
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xi[0] = x;
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xi[1] = x>>16;
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xi[2] = x>>32;
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return x & 0xffffffffffffull;
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}
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