z3-src 503.0.0

Source distribution of the Z3 SMT solver, for use as a build dependency
Documentation 
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/*++
Copyright (c) 2011 Microsoft Corporation

Module Name:

    numeral_buffer.h

Abstract:

    Basic buffer for managing big nums.

Author:

    Leonardo de Moura (leonardo) 2011-06-18.

Revision History:

--*/
#pragma once

#include "util/vector.h"

template<typename Numeral, typename NumeralManager>
class numeral_buffer {
    NumeralManager &  m_manager;
    svector<Numeral>  m_buffer;
public:
    typedef Numeral numeral;
    typedef Numeral data_t;
    typedef NumeralManager manager;

    numeral_buffer(NumeralManager & m):m_manager(m) {}

    ~numeral_buffer() {
        reset();
    }
    
    NumeralManager & m() const { return m_manager; }

    unsigned size() const { return m_buffer.size(); }
    
    bool empty() const { return m_buffer.empty(); }

    void push_back(Numeral const & num) {
        m_buffer.push_back(Numeral());
        m().set(m_buffer.back(), num);
    }
    
    void pop_back() {
        m().del(m_buffer.back());
        m_buffer.pop_back();
    }

    Numeral & back() {
        return m_buffer.back();
    }

    Numeral const & back() const {
        return m_buffer.back();
    }
    
    Numeral const & operator[](unsigned idx) const {
        return m_buffer[idx];
    }

    Numeral & operator[](unsigned idx) {
        return m_buffer[idx];
    }

    void reset() {
        for (auto& numeral : m_buffer)
            m().del(numeral);
        m_buffer.reset();
    }

    Numeral * data() { return m_buffer.data(); }

    void reserve(unsigned sz) {
        m_buffer.reserve(sz);
    }

    void swap(svector<Numeral> & other) noexcept {
        m_buffer.swap(other);
    }

};