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gdb打印c++ std::vector元素内容 - C/C++ - 清泛网 - 专注C/C++及内核技术

gdb打印c++ std::vector元素内容gdb_vector_print使用GDB调试程序或coredump时,直接 p vec 打印的是vector内部成员的信息,不能直观输出元素的内容。通过打印内部元素地址内容的方式,查看vector元素内容,不限gcc版本:(gdb) 使用GDB调试程...
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浅析Linux段错误:SEGV_MAPERR、SEGV_ACCERR - C/C++ - 清泛网 - 专注C/C++及内核技术

浅析Linux段错误:SEGV_MAPERR、SEGV_ACCERRwhat-is-segv-maperr有两种常见的段错误,SIGSEGV 是段错误终止信号,通常是由无效内存访问导致的错误:访问了具有错误权限的页面。例如,它是只读的,但您的代码试图写入它。这将报告为SEGV_A...
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gcc编译警告:misleading-indentation - C/C++ - 清泛网 - 专注C/C++及内核技术

gcc编译警告:misleading-indentationgcc-misleading-indentationmisleading-indentation(不正确的缩进),一般都是Tab及空格的缩进问题导致。实例1:Tab、空格混用将:[空格] if(err)[空格] fprintf(stderr, "op faile misleading-indentation(不正确的缩...
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Undefined reference to symbol X509_free - C/C++ - 清泛网 - 专注C/C++及内核技术

Undefined reference to symbol X509_freeundefined-reference-to-symbol-x509-freeUndefined reference to symbol X509_free 编译错误的解决方法:链接库中增加 -lcrypto,而非 -lcrypt参考:https: stackoverflow com questions 33215936 undefined-reference-to-symbol-x509-freeUndefined refer...
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【解决】eclipse新建项目报错:overlaps the location of another project:...

【解决】eclipse新建项目报错:overlaps the location of another project: 'xxx'eclipse-error-overlaps-the-location-of-another-projectEclipse新建项目时报错:overlaps the location of another project: & 39;xxx& 39;,确保workspace下没有重复的工程,但之前曾经添加并删...
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gcc自带内存泄漏、内存越界检测工具 - asan - C/C++ - 清泛网 - 专注C/C++及内核技术

gcc自带内存泄漏、内存越界检测工具 - asangcc-asanasan内存异常检测工具,功能类似valgrind,不过是gcc自带的原生工具,使用起来非常简单,只需要链接时加上 -lasan 即可。(编译选项也可以加上 -fsanitize=address)测试代码如 asan内...
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eclipse cdt 运行程序时添加依赖库路径 - C/C++ - 清泛网 - 专注C/C++及内核技术

eclipse cdt 运行程序时添加依赖库路径eclipse-cdt-ld-library-path我们知道Linux即使依赖库和可执行文件在同一目录下,如果不使用 LD_LIBRARY_PATH 指定库路径(即当前目录)的话,仍然会报加载不到依赖库的错误。那么Eclipse CDT也是类似,...
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【解决】asan runtime does not come first in initial library list - C/C...

【解决】asan runtime does not come first in initial library listasan-issue-with-asan-library-loading报错信息:ASan runtime does not come first in initial library list; you should eitherlink runtime to your applicationor manually preload it with L 报错信息: ASan runtime does not com...
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【解决】munmap_chunk(): invalid pointer - C/C++ - 清泛网 - 专注C/C++及内核技术

【解决】munmap_chunk(): invalid pointermunmap_chunk-invalid-pointer原因:new malloc出来的指针被覆盖掉了,然后delete free就会报这个错误。例如:char* word = (char*)malloc(10);word = "abc"; 应使用 strcpy(word, "abc");free(word) 原因:new/malloc出来的指针被...
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【解决】double free or corruption (!prev) - C/C++ - 清泛网 - 专注C/C++及内核技术

【解决】double free or corruption (!prev)double-free-or-corruption-prev*** glibc detected *** cupd: double free or corruption (!prev): 0x093b1208 ***可能原因:1、多次释放同一内存区,需要检查代码,是否出现了对同一内存区释放两 *** glibc detected *** ./cupd:...