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z3/src/util/prime_generator.h

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988 B
C++

/*++
Copyright (c) 2011 Microsoft Corporation
Module Name:
prime_generator.h
Abstract:
Prime generator
Author:
Leonardo (leonardo) 2011-12-23
Notes:
--*/
#ifndef PRIME_GENERATOR_H_
#define PRIME_GENERATOR_H_
#include "util/vector.h"
#include "util/z3_exception.h"
#include "util/util.h"
class prime_generator_exception : public default_exception {
public:
prime_generator_exception(char const * msg):default_exception(msg) {}
};
/**
\brief Prime generator
*/
class prime_generator {
svector<uint64_t> m_primes;
void process_next_k_numbers(uint64_t k);
public:
prime_generator();
uint64_t operator()(unsigned idx);
void finalize();
};
class prime_iterator {
unsigned m_idx;
prime_generator * m_generator;
bool m_global;
public:
prime_iterator(prime_generator * g = nullptr);
uint64_t next();
static void finalize();
/*
ADD_FINALIZER('prime_iterator::finalize();')
*/
};
#endif