vector<ZXJC_YXBW>::iterator itFind = std::unique(o_arYXBWRecords.begin(), o_arYXBWRecords.end());

这段代码使用了STL的unique函数，它的作用是去除o_arYXBWRecords中相邻的重复元素并返回一个指向新的逻辑结尾的迭代器，需要注意的是，unique函数只能去除相邻的重复元素，如果要去除所有重复元素，则需要先使用sort函数对o_arYXBWRecords进行排序。而这里的itFind则是指向去重后的新的逻辑结尾的迭代器，可以通过itFind和o_arYXBWRecords.begin()计算出去重后的元素个数。

相关问题

#3 0x000000000046ef07 in ~_Vector_base (this=0x6a4ead0, __in_chrg=<value optimized out>) at /usr/include/c++/4.4/bits/stl_vector.h:132 #4 0x000000000046dd2d in ~vector (this=0x6a4ead0, __in_chrg=<value optimized out>) at /usr/include/c++/4.4/bits/stl_vector.h:313 #5 0x000000000046b7c8 in ~ZXJC_LineCover (this=0x6a4ea30, __in_chrg=<value optimized out>) at ../../web/demonitordll/dbproc.h:236 #6 0x000000000046b7e2 in std::_Destroy<ZXJC_LineCover> (__pointer=0x6a4ea30) at /usr/include/c++/4.4/bits/stl_construct.h:83 #7 0x000000000046795a in std::_Destroy_aux<false>::__destroy<ZXJC_LineCover*> (__first=0x6a4ea30, __last=0x6a4ea18) at /usr/include/c++/4.4/bits/stl_construct.h:93 #8 0x000000000045bc7f in std::_Destroy<ZXJC_LineCover*> (__first=0x6a4e960, __last=0x6a4ea18) at /usr/include/c++/4.4/bits/stl_construct.h:116 #9 0x000000000044920f in std::_Destroy<ZXJC_LineCover*, ZXJC_LineCover> (__first=0x6a4e960, __last=0x6a4ea18) at /usr/include/c++/4.4/bits/stl_construct.h:142 #10 0x00007f3769464bde in std::vector<ZXJC_LineCover, std::allocator<ZXJC_LineCover> >::_M_insert_aux (this=0x7f374ee9aca0, __position=..., __x=...) at /usr/include/c++/4.4/bits/vector.tcc:359 #11 0x00007f376945c985 in std::vector<ZXJC_LineCover, std::allocator<ZXJC_LineCover> >::push_back (this=0x7f374ee9aca0, __x=...) at /usr/include/c++/4.4/bits/stl_vector.h:741 #12 0x00007f3769445ca0 in CDBProc::GetLineCoverageRate (this=0x7f3758003690, o_fStatistRate=@0x7f374ee9acdc, o_strErr=..., feederVec=...) at dbproc.cpp:3472

这个堆栈追踪显示了程序在执行`CDBProc::GetLineCoverageRate`函数时崩溃。具体来说，它是因为在执行这个函数的过程中，程序试图销毁一个`std::vector`对象时发生了异常。这个异常的原因很可能是因为这个`vector`对象的内存被损坏或者已经被释放，但是程序仍然试图访问它的内容。导致程序崩溃。

#0 *__GI___libc_free (mem=0xc8e4b1e4c5d2cae7) at malloc.c:3710 #1 0x000000000046f990 in __gnu_cxx::new_allocator<_sXLFG_RTUinfo>::deallocate (this=0x6a4ead0, __p=0xc8e4b1e4c5d2cae7) at /usr/include/c++/4.4/ext/new_allocator.h:95 #2 0x000000000046f61a in std::_Vector_base<_sXLFG_RTUinfo, std::allocator<_sXLFG_RTUinfo> >::_M_deallocate (this=0x6a4ead0, __p=0xc8e4b1e4c5d2cae7, __n=13304522399497014541) at /usr/include/c++/4.4/bits/stl_vector.h:146 #3 0x000000000046ef07 in ~_Vector_base (this=0x6a4ead0, __in_chrg=<value optimized out>) at /usr/include/c++/4.4/bits/stl_vector.h:132 #4 0x000000000046dd2d in ~vector (this=0x6a4ead0, __in_chrg=<value optimized out>) at /usr/include/c++/4.4/bits/stl_vector.h:313 #5 0x000000000046b7c8 in ~ZXJC_LineCover (this=0x6a4ea30, __in_chrg=<value optimized out>) at ../../web/demonitordll/dbproc.h:236分析一下这个堆栈

这个堆栈是一个程序崩溃时的调用栈信息，可以看出错误是在释放内存空间时发生的。具体来说，调用栈中最后一个函数是析构函数“~ZXJC_LineCover”，该函数在释放vector对象时发生了错误。在析构函数中，vector对象调用了其成员变量的析构函数，即它所包含的_sXLFG_RTUinfo类型对象的析构函数。但是在调用析构函数时，程序发现_sXLFG_RTUinfo对象的内存地址为0xc8e4b1e4c5d2cae7，这是一个不合法的内存地址，于是程序就崩溃了。这种错误通常是由于内存泄漏或内存越界等问题导致的，需要进一步分析代码才能找到具体的原因。