我使用带有选项的 GCC 编译了所有源文件-O0 -g3，然后在 GDB 中运行了相应的二进制文件。收到 SIGABRT 后，我执行了回溯。
这是 GDB 中运行的“崩溃”输出：
terminate called recursively
terminate called recursively
terminate called after throwing an instance of 'std::out_of_range'
what(): vector::_M_range_check
terminate called recursively
Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffff5baf700 (LWP 6434)]
0x00007ffff6be9037 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
这是 GDB 回溯（紧跟上面显示的输出）：
(gdb) bt
#0 0x00007ffff6be9037 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007ffff6bec698 in __GI_abort () at abort.c:90
#2 0x00007ffff7921e8d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3 0x00007ffff791ff76 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4 0x00007ffff791f089 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5 0x00007ffff791fbc1 in __gxx_personality_v0 () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#6 0x00007ffff71a615b in ?? () from /lib/x86_64-linux-gnu/libgcc_s.so.1
#7 0x00007ffff71a65b8 in _Unwind_Resume () from /lib/x86_64-linux-gnu/libgcc_s.so.1
#8 0x0000000000445b5d in simulate4_NEJMdisutilities (P=..., NNSmode=true, NNScontrol=false) at ../simulation4.cpp:1846
#9 0x0000000000420f97 in Policy::evaluate (this=0x8ad368) at ../globals.cpp:686
#10 0x000000000041201b in OCBA_SC(std::vector<Policy, std::allocator<Policy> >&, double, int, int, int, double) [clone ._omp_fn.1] () at ../OCBA.cpp:616
#11 0x00007ffff73b586a in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#12 0x00007ffff6f81f8e in start_thread (arg=0x7ffff5baf700) at pthread_create.c:311
#13 0x00007ffff6cabe1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
(gdb)
从第 8 帧开始，GDB 似乎声称问题是从 source file 的第 1846 行引起的simulation4.cpp。
但是，这是第 1846 行（和周围的行）：
1835 if(NORMAL && VALIDATION) {
1836 P.hist_PSAtest.print();
1837 P.hist_biopsy.print();
1838 P.hist_treatment.print();
1839 P.hist_getCancer.print();
1840 P.hist_getMetastasis.print();
1841 P.hist_death.print();
1842 P.hist_deathOther.print();
1843 P.hist_deathPCa.print();
1844
1845 prevalence.print();
1846 }
1847
1848 /* ------------ TESTING ------------ */
1849 #if SIMULATION4_DEBUG > 1
1850 cout << "After single execution of simulate4_NEJMdisutilities(Policy&,bool,bool):\n";
1851 cout << " Policy::QALY::sum() = " << P.QALYs.sum() << "\n";
1852 cout << " Policy::Year::sum() = " << P.Years.sum() << "\n";
1853 cout << "\n";
1854 #endif
1855 /* --------------------------------- */
1856
1857
1858 } //simulate4_NEJMdisutilities()
什么可以解释行号之间的差异？
作为背景，我应该注意我使用的是std::vector::at()调用simulation4.cpp而不是[]操作员，特别是因为我怀疑某处可能存在内存损坏。在切换到该at()方法之前，我收到了一个段错误。
我还应该注意，VALIDATION=false在我的运行中，没有执行第 1836--1845 行的代码。