我想從boost :: odeint示例中測試my_vector.cpp程序,但沒有任何成功。當我運行程序時出現分段錯誤。 編譯:g ++ -std = C++ 14 -o my_vector my_vector.cppboost :: odeint my_vector.cpp示例中的分段錯誤示例
它使用std :: vector <>代替my_vector運行state_type。我懷疑is_resizable有什麼問題,但我不知道如何解決它。
這裏是my_vector.cpp的代碼,你可以從github
/*
* Copyright 2011-2012 Mario Mulansky
* Copyright 2012-2013 Karsten Ahnert
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or
* copy at http://www.boost.org/LICENSE_1_0.txt)
*
* Example for self defined vector type.
*/
#include <vector>
#include <boost/numeric/odeint.hpp>
//[my_vector
template< int MAX_N >
class my_vector
{
typedef std::vector<double> vector;
public:
typedef vector::iterator iterator;
typedef vector::const_iterator const_iterator;
public:
my_vector(const size_t N)
: m_v(N)
{
m_v.reserve(MAX_N);
}
my_vector()
: m_v()
{
m_v.reserve(MAX_N);
}
// ... [ implement container interface ]
//]
const double & operator[](const size_t n) const
{ return m_v[n]; }
double & operator[](const size_t n)
{ return m_v[n]; }
iterator begin()
{ return m_v.begin(); }
const_iterator begin() const
{ return m_v.begin(); }
iterator end()
{ return m_v.end(); }
const_iterator end() const
{ return m_v.end(); }
size_t size() const
{ return m_v.size(); }
void resize(const size_t n)
{ m_v.resize(n); }
private:
std::vector<double> m_v;
};
//[my_vector_resizeable
// define my_vector as resizeable
namespace boost { namespace numeric { namespace odeint {
template<size_t N>
struct is_resizeable< my_vector<N> >
{
typedef boost::true_type type;
static const bool value = type::value;
};
} } }
//]
typedef my_vector<3> state_type;
void lorenz(const state_type &x , state_type &dxdt , const double t)
{
const double sigma(10.0);
const double R(28.0);
const double b(8.0/3.0);
dxdt[0] = sigma * (x[1] - x[0]);
dxdt[1] = R * x[0] - x[1] - x[0] * x[2];
dxdt[2] = -b * x[2] + x[0] * x[1];
}
using namespace boost::numeric::odeint;
int main()
{
state_type x(3);
x[0] = 5.0 ; x[1] = 10.0 ; x[2] = 10.0;
// my_vector works with range_algebra as it implements
// the required parts of a container interface
// no further work is required
integrate_const(runge_kutta4<state_type>() , lorenz , x , 0.0 , 10.0 , 0.1);
}
我使用G ++ 4.9.3和促進1.54.0 – Bociek