TiXmlDocument 棧上對(duì)象析構(gòu)問題

kaede_1

問題背景：在棧上創(chuàng)建了一個(gè)TiXmlDocument對(duì)象，運(yùn)行了報(bào)錯(cuò)： *** glibc detected *** ./exe_name: free(): invalid pointer: 0x00000000006ab128 ***
              但是將在棧上創(chuàng)建對(duì)象改為在堆上創(chuàng)建，用完后delete就沒有這個(gè)問題。
              或者將這個(gè)對(duì)象聲明為static（程序執(zhí)行過程中不執(zhí)行析構(gòu)），也是沒有這個(gè)問題

我是將TiXmlDocument封裝在一個(gè)類中,相關(guān)偽代碼如下：
class A
{
private：
    //TiXmlDocument *m_doc;
    TiXmlDocument m_doc;
}

A::func（）
{
    //m_doc = new TiXmlDocument ();
    //m_doc->LoadFile（strConfigFile）;
    m_doc.LoadFile（strConfigFile）;
    //...get some date
}
init()
{
    A a;
    a.func();
}
main()
{
    init();
}

報(bào)錯(cuò)時(shí)堆棧信息如下：

1. Program terminated with signal 6, Aborted.
   
2. #0  0x0000003ce4a30265 in raise () from /lib64/libc.so.6
   
3. (gdb) bt
   
4. #0  0x0000003ce4a30265 in raise () from /lib64/libc.so.6
   
5. #1  0x0000003ce4a31d10 in abort () from /lib64/libc.so.6
   
6. #2  0x0000003ce4a6a9bb in __libc_message () from /lib64/libc.so.6
   
7. #3  0x0000003ce4a7247f in _int_free () from /lib64/libc.so.6
   
8. #4  0x0000003ce4a728db in free () from /lib64/libc.so.6
   
9. #5  0x00002b434875dc43 in _M_dispose (this=<value optimized out>, __in_chrg=<value optimized out>)
   
10.     at /opt/gccsrc/gcc-4.6.3/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h:235
    
11. #6  std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string (this=<value optimized out>, __in_chrg=<value optimized out>)
    
12.     at /opt/gccsrc/gcc-4.6.3/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h:534
    
13. #7  0x000000000040c7e4 in TiXmlDocument::~TiXmlDocument (this=0x7fff1c90b248, __in_chrg=<value optimized out>) at ../../xml/include/tinyxml.h:1409
    
14. #8  0x000000000040b370 in Config::~Config (this=0x7fff1c90b200, __in_chrg=<value optimized out>) at config.cc:10
    
15. #9  0x0000000000406c97 in InitFromConfig (workpath=0x7fff1c90bb8d "/opt//src/../data") at main.cc:138
    
16. #10 0x0000000000406d04 in Init (argc=4, argv=0x7fff1c90b4f8) at main.cc:153
    
17. #11 0x0000000000406ee3 in main (argc=4, argv=0x7fff1c90b4f8) at main.cc:72

復(fù)制代碼

求指教，多謝

drangon

珍惜生命，遠(yuǎn)離TinyXML，還是換用pugixml吧，

kaede_1

回復(fù) 2# drangon


    .。。。。

rainsloo

TINYXML 析構(gòu)是這樣的

m_doc.clear()  //在對(duì)象析構(gòu)之前一定要調(diào)用這個(gè).