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31 lines
1 KiB
C
31 lines
1 KiB
C
#ifndef __VM_RANDOM_H__
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#define __VM_RANDOM_H__
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#define VM_RAND_MAX 2147483647
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#define int32_t int
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struct vm_random_data
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{
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int32_t *fptr; /* Front pointer. */
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int32_t *rptr; /* Rear pointer. */
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int32_t *state; /* Array of state values. */
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int vm_rand_type; /* Type of random number generator. */
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int vm_rand_deg; /* Degree of random number generator. */
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int vm_rand_sep; /* Distance between front and rear. */
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int32_t *end_ptr; /* Pointer behind state table. */
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};
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int vm_initstate (unsigned int seed,
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void* arg_state,
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size_t n,
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struct vm_random_data* buf);
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int vm_setstate (void* arg_state,
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struct vm_random_data* buf);
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void vm_default_initstate( int seed,
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struct vm_random_data* buf );
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int vm_srandom (unsigned int seed,
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struct vm_random_data* buf);
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int32_t vm_random (struct vm_random_data* buf);
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#endif /* !defined( __VM_RANDOM_H__ ) */
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