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C++ protobuf使用入门实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ protobuf使用入门实例cpp_protobuf_demoprotobuf 是结构化数据的系列化 反序列化解决方案,类似XML JSON,但他的运行效率及压缩率均较后者高一个数量级,且完全的跨平台。使用步骤如下:1、定义一个 proto数据结构文件 protobuf 是结...
‘std::tr1’ does not name a template type - C/C++ - 清泛网 - 专注C/C++及内核技术
‘std::tr1’ does not name a template typestd-tr1-does-not-name-a-template-type解决方法:添加头文件 if !defined(_MSC_VER) include <tr1 memory> endifC++ Technical Report 1 (TR1)是ISO IEC TR 19768, C++ Library Extensions(函式库扩充)的 解决方法:添加头文件
#if !def...
namespace “std” has no member “clamp” - C/C++ - 清泛网 - 专注C/C++及内核技术
namespace “std” has no member “clamp”namespace-std-has-no-member-clamperror: ‘clamp’ is not a member of ‘std’namespace std has no member clampC++17特性,加编译选项 -std=c++17error: ‘clamp’ is not a member of ‘std’
namespace “std” h...
【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...
【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...
【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:...
【解决】C、C++混合编译link失败问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
【解决】C、C++混合编译link失败问题c_cpp_mixed_compileC、C++混合编译时,C头文件不加 extern "C",函数按照C++编译会改变函数名称,导致link时报undefined reference to `xxx` 的 错误。加 extern "C" 解决,但是直接加的话 C、C++混合编译时,C...
【解决】This is allowed only when policy CMP0079 is set to NEW. - C/C++ - 清泛网 - 专注IT技能提升
【解决】This is allowed only when policy CMP0079 is set to NEW.This-is-allowed-only-when-policy-CMP0079-is-set-to-NEWcmake最低版本设置为3 13以上,可解决。cmake_minimum_required(VERSION 3 13) can fix the first problem 参考:https: gitlab kitware com cmake cmake - issues 19693cma...
CPU指令集avx程序无法运行,运行崩溃 - C/C++ - 清泛网 - 专注C/C++及内核技术
CPU指令集avx程序无法运行,运行崩溃cpu_avx_run原因就是CPU不支持相应的指令集导致的。Linux上使用 lscpu 命令查看CPU指令集,看是否支持。比如_mm256_cmpeq_epi64 这个函数需要avx2指令集,但是CPU不支持,就导致程序崩溃起不来。原因...
[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1....
[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1.5eclipse-Missing-Constraint原因:eclipse版本太老了,java版本太新了不匹配导致。解决:安装最新的eclipse,地址:https: www eclipse org downloads 参考:https: www eclipse org forums index php t 1...