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44 lines
779 B
44 lines
779 B
#include <stdlib.h>
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#include <string.h>
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#include "crand.h"
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struct jr_state
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{
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long result;
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struct drand48_data data;
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union {
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unsigned short xsubi[3];
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struct {
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unsigned int xsubh : 24;
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unsigned char _xsub : 8;
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};
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unsigned int xsubl;
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} st;
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};
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void _jr_seed(struct jr_state* restrict state, unsigned int with)
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{
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state->st.xsubh = with;
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seed48_r(state->st.xsubi, &state->data);
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}
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long _jr_proc(struct jr_state* restrict state)
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{
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jrand48_r(state->st.xsubi, &state->data, &state->result);
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return state->result;
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}
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struct jr_state* _jr_alloc()
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{
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struct jr_state* bx = aligned_alloc(_Alignof(struct jr_state), sizeof(struct jr_state));
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memset(bx, 0, sizeof(struct jr_state));
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return bx;
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}
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void _jr_free(struct jr_state* restrict state)
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{
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free(state);
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}
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