我收到此错误:&“检测到glibc" [英] I get this error: "glibc detected"

问题描述

我刚刚编写了一段CPP代码，并在ubuntu中使用G ++对其进行了编译.当我运行我的代码时，一切都很好，代码可以很好地运行并提供输出，但没有退出，并且会出现此错误:

I just wrote a piece of CPP code and I compiled it using G++ in ubuntu. When I run my code everything is fine, the code runs well and gives output but doesn't exit and it gives this error:

 *** glibc detected *** ./a.out: free(): invalid next size (fast): 0x09f931f0 ***
======= Backtrace: =========
/lib/libc.so.6(+0x6c501)[0x3de501]
/lib/libc.so.6(+0x6dd70)[0x3dfd70]
/lib/libc.so.6(cfree+0x6d)[0x3e2e5d]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0x6e2441]
./a.out[0x8049ce6]
/lib/libc.so.6(+0x2f69e)[0x3a169e]
/lib/libc.so.6(+0x2f70f)[0x3a170f]
/lib/libc.so.6(__libc_start_main+0xef)[0x388cef]
./a.out[0x8048a61]
======= Memory map: ========
00219000-0021a000 r-xp 00000000 00:00 0          [vdso]
00354000-00370000 r-xp 00000000 08:01 8781845    /lib/ld-2.12.1.so
00370000-00371000 r--p 0001b000 08:01 8781845    /lib/ld-2.12.1.so
00371000-00372000 rw-p 0001c000 08:01 8781845    /lib/ld-2.12.1.so
00372000-004c9000 r-xp 00000000 08:01 8781869    /lib/libc-2.12.1.so
004c9000-004ca000 ---p 00157000 08:01 8781869    /lib/libc-2.12.1.so
004ca000-004cc000 r--p 00157000 08:01 8781869    /lib/libc-2.12.1.so
004cc000-004cd000 rw-p 00159000 08:01 8781869    /lib/libc-2.12.1.so
004cd000-004d0000 rw-p 00000000 00:00 0 
00638000-00717000 r-xp 00000000 08:01 3935829    /usr/lib/libstdc++.so.6.0.14
00717000-0071b000 r--p 000de000 08:01 3935829    /usr/lib/libstdc++.so.6.0.14
0071b000-0071c000 rw-p 000e2000 08:01 3935829    /usr/lib/libstdc++.so.6.0.14
0071c000-00723000 rw-p 00000000 00:00 0 
00909000-0092d000 r-xp 00000000 08:01 8781918    /lib/libm-2.12.1.so
0092d000-0092e000 r--p 00023000 08:01 8781918    /lib/libm-2.12.1.so
0092e000-0092f000 rw-p 00024000 08:01 8781918    /lib/libm-2.12.1.so
00fdb000-00ff5000 r-xp 00000000 08:01 8781903    /lib/libgcc_s.so.1
00ff5000-00ff6000 r--p 00019000 08:01 8781903    /lib/libgcc_s.so.1
00ff6000-00ff7000 rw-p 0001a000 08:01 8781903    /lib/libgcc_s.so.1
08048000-0804b000 r-xp 00000000 08:01 8652645    /home/akg/Desktop/contest/a.out
0804b000-0804c000 r--p 00002000 08:01 8652645    /home/akg/Desktop/contest/a.out
0804c000-0804d000 rw-p 00003000 08:01 8652645    /home/akg/Desktop/contest/a.out
09f93000-09fb4000 rw-p 00000000 00:00 0          [heap]
b7600000-b7621000 rw-p 00000000 00:00 0 
b7621000-b7700000 ---p 00000000 00:00 0 
b7765000-b7768000 rw-p 00000000 00:00 0 
b7775000-b7779000 rw-p 00000000 00:00 0 
bf9a7000-bf9c8000 rw-p 00000000 00:00 0          [stack]
Aborted

这是什么意思?我如何摆脱它?我不是在使用malloc或free，而是在使用vector！

What does this mean? How can i get rid of it? I'm not using malloc or free , I'm just using vector!

推荐答案

即使您不直接分配内存，它也会在 vector 代码的幕后发生，并且您很可能破坏了其中的一部分通过写你不应该去的地方来记忆.我能想到的最可能的原因是:

Even if you're not allocating memory directly, it happens under the hood in vector code and you most likely corrupted some portion of memory by writing where you are not supposed to. The most likely reasons I can think of are:

1. 写到超出范围的元素
2. 使用指向不再有效的元素的指针/引用-请注意，插入更多元素可能会使先前的引用无效

当然，除非您发布一些相关代码，否则我不能肯定地说.或者尝试使用 valgrind 查找问题的根源.

Of course, I can't say for sure unless you post some relevant code. Or try using valgrind to find the source of the problem.

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