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问题背景:在栈上创建了一个TiXmlDocument对象,运行了报错: *** glibc detected *** ./exe_name: free(): invalid pointer: 0x00000000006ab128 ***
但是将在栈上创建对象改为在堆上创建,用完后delete就没有这个问题。
或者将这个对象声明为static(程序执行过程中不执行析构),也是没有这个问题
我是将TiXmlDocument封装在一个类中,相关伪代码如下:
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();
}
报错时堆栈信息如下:- Program terminated with signal 6, Aborted.
- #0 0x0000003ce4a30265 in raise () from /lib64/libc.so.6
- (gdb) bt
- #0 0x0000003ce4a30265 in raise () from /lib64/libc.so.6
- #1 0x0000003ce4a31d10 in abort () from /lib64/libc.so.6
- #2 0x0000003ce4a6a9bb in __libc_message () from /lib64/libc.so.6
- #3 0x0000003ce4a7247f in _int_free () from /lib64/libc.so.6
- #4 0x0000003ce4a728db in free () from /lib64/libc.so.6
- #5 0x00002b434875dc43 in _M_dispose (this=<value optimized out>, __in_chrg=<value optimized out>)
- at /opt/gccsrc/gcc-4.6.3/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h:235
- #6 std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string (this=<value optimized out>, __in_chrg=<value optimized out>)
- at /opt/gccsrc/gcc-4.6.3/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h:534
- #7 0x000000000040c7e4 in TiXmlDocument::~TiXmlDocument (this=0x7fff1c90b248, __in_chrg=<value optimized out>) at ../../xml/include/tinyxml.h:1409
- #8 0x000000000040b370 in Config::~Config (this=0x7fff1c90b200, __in_chrg=<value optimized out>) at config.cc:10
- #9 0x0000000000406c97 in InitFromConfig (workpath=0x7fff1c90bb8d "/opt//src/../data") at main.cc:138
- #10 0x0000000000406d04 in Init (argc=4, argv=0x7fff1c90b4f8) at main.cc:153
- #11 0x0000000000406ee3 in main (argc=4, argv=0x7fff1c90b4f8) at main.cc:72
复制代码 求指教,多谢 |
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