升壓線壞訪問

Question

UPDATE：如果我使用的libC++編譯，然後我發現了錯誤，但是當我改變了編譯器與libstdC++（GNU C++標準庫），程序將不顯示任何錯誤運行。

我從升壓網站嘗試一些示例代碼，當運行這段代碼不知何故，我得到一個壞訪問錯誤。代碼運行良好，直到它調用它看起來的析構函數。

-lmysqlclient-lm-lz-lboost_date_time-lboost_system-lboost_filesystem鏈接。

有沒有人知道我做錯了什麼？

#include <iostream> 
#include <boost/asio.hpp> 
#include <boost/thread/thread.hpp> 
#include <boost/bind.hpp> 
#include <boost/date_time/posix_time/posix_time.hpp> 

class printer 
{ 
public: 
    printer(boost::asio::io_service& io) 
    : strand_(io), 
    timer1_(io, boost::posix_time::seconds(1)), 
    timer2_(io, boost::posix_time::seconds(1)), 
    count_(0) 
    { 
     timer1_.async_wait(strand_.wrap(boost::bind(&printer::print1, this))); 
     timer2_.async_wait(strand_.wrap(boost::bind(&printer::print2, this))); 
    } 

    ~printer() 
    { 
     std::cout << "Final count is " << count_ << "\n"; 
    } 

    void print1() 
    { 
     if (count_ < 10) 
     { 
      std::cout << "Timer 1: " << count_ << "\n"; 
      ++count_; 

      timer1_.expires_at(timer1_.expires_at() + boost::posix_time::seconds(1)); 
      timer1_.async_wait(strand_.wrap(boost::bind(&printer::print1, this))); 
     } 
    } 

    void print2() 
    { 
     if (count_ < 10) 
     { 
      std::cout << "Timer 2: " << count_ << "\n"; 
      ++count_; 

      timer2_.expires_at(timer2_.expires_at() + boost::posix_time::seconds(1)); 
      timer2_.async_wait(strand_.wrap(boost::bind(&printer::print2, this))); 
     } 
    } 

private: 
    boost::asio::strand strand_; 
    boost::asio::deadline_timer timer1_; 
    boost::asio::deadline_timer timer2_; 
    int count_; 
}; 

int main() 
{ 
    boost::asio::io_service io; 
    printer p(io); 
    boost::thread t(boost::bind(&boost::asio::io_service::run, &io)); 
    io.run(); 
    t.join(); 

    return 0; 
} 

Original image

林不知道這是否是一個堆棧跟蹤...

Answer 1

我建立並使用gcc 4.2.1沒有問題

跑到你在我的Mac代碼

samm$ g++ --version 
i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00) 
Copyright (C) 2007 Free Software Foundation, Inc. 
This is free software; see the source for copying conditions. There is NO 
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
samm$ ./a.out 
Timer 1: 0 
Timer 2: 1 
Timer 1: 2 
Timer 2: 3 
Timer 1: 4 
Timer 2: 5 
Timer 1: 6 
Timer 2: 7 
Timer 1: 8 
Timer 2: 9 
Final count is 10 
samm$ 

我用這個相同的工具鏈來建立d我的增強庫

samm$ grep BOOST_LIB_VERSION /opt/local/include/boost/version.hpp 
// BOOST_LIB_VERSION must be defined to be the same as BOOST_VERSION 
#define BOOST_LIB_VERSION "1_53" 
samm$ 

我建議使用相同的工具鏈來構建boost和您的應用程序。