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ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网 - 专注C++内核技术

ATL CComPtr和CComQIPtr详解ATL-CComPtr-CComQIPtrCComPtr和CComQIPtr的不同的地方:CComPtr只能创建固定的特定的接口指针实例。而CComQIPtr不但实现了CComPtr的所有的功能,而且当我们把一个不同类型的接口指针赋值给CComQIPtr的时候,CComQIPtr会自...
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MFC Telnet Application(mfc telnet 端口,代码实现、不调用telnet.exe) ...

MFC Telnet Application(mfc telnet 端口,代码实现、不调用telnet.exe)MFC-Telnet-Applicationmfc程序telnet ip:端口,代码原生实现、不调用telnet.exe。程序源码工程升级后,可能出现编译不过的情况,请将stdafx.h中0x0410全部改为0x0501即可。The artic...
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char类型移动跨平台踩过的坑 - C/C++ - 清泛网 - 专注C++内核技术

char类型移动跨平台踩过的坑CFLAG-fsigned-charchar强转int时,发现在x86平台下是按照有符号处理的,但是在ARM32下被当成了无符号导致问题,ARM64正常有符号。经调查,在PC上,char类型默认为signed-char,但是在一些嵌入式设备 char强转...
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Reference to \' \' is ambiguous:符号定义重复 - C/C++ - 清泛网 - 专注C++内核技术

Reference to ' ' is ambiguous:符号定义重复Reference-to-is-ambiguousReference to & 39; & 39; is ambiguous 编译错误:从字面上看就是引用某个符号(变量、类名、函数等)的定义不明确,重复。以下为可能的原因及解决方法:1、自定义的变量名 ...
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[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...
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【解决】Missing FindPython3.cmake - C/C++ - 清泛网 - 专注C++内核技术

【解决】Missing FindPython3.cmakeMissing-FindPython3-cmake编译llvm时,报错:CMake Error at CMakeLists txt:729 (find_package): By not providing "FindPython3 cmake" in CMAKE_MODULE_PATH this project has asked 编译llvm时,报错: CMake Error at CMakeLists.txt:729 (find_package):...
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【解决】This is allowed only when policy CMP0079 is set to NEW. - C/C+...

【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...
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An operation on a socket could not be performed because the system lac...

An operation on a socket could not be performed because the system lacked sufficient buffer space(由于系统缓冲区空间不足,或者因为队列已满,不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务...
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Linux升级OpenSSL的方法 - 操作系统(内核) - 清泛网 - 专注C++内核技术

Linux升级OpenSSL的方法Linux_OpenSSL_upgrade1、先查看openssl版本:openssl version 通用命令,加 -a 参数显示更详细yum info openssl redhat系列的可以用dpkg-query -l & 39;openssl& 39; ubuntu 和debian可 1、先查看openssl版本: openssl version #通用命令...
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解决xrdp登陆不上的问题:xrdp session: Login failed for display 0 - 操...

解决xrdp登陆不上的问题:xrdp session: Login failed for display 0xrdp_Login_failed_for_display_0Xrdp登陆不上报错如下:原因及解决方法:1、网上大部分内容说是用户名密码不对导致,的确密码不对会报这个错误,但是有些时候当你确认用户名...