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25 lines
649 B
C
25 lines
649 B
C
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/*
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** Pseudo-random number generation.
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** Copyright (C) 2005-2020 Mike Pall. See Copyright Notice in luajit.h
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*/
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#ifndef _LJ_PRNG_H
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#define _LJ_PRNG_H
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#include "lj_def.h"
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LJ_FUNC int LJ_FASTCALL lj_prng_seed_secure(PRNGState *rs);
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LJ_FUNC uint64_t LJ_FASTCALL lj_prng_u64(PRNGState *rs);
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LJ_FUNC uint64_t LJ_FASTCALL lj_prng_u64d(PRNGState *rs);
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/* This is just the precomputed result of lib_math.c:random_seed(rs, 0.0). */
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static LJ_AINLINE void lj_prng_seed_fixed(PRNGState *rs)
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{
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rs->u[0] = U64x(a0d27757,0a345b8c);
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rs->u[1] = U64x(764a296c,5d4aa64f);
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rs->u[2] = U64x(51220704,070adeaa);
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rs->u[3] = U64x(2a2717b5,a7b7b927);
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}
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#endif
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