Multiple declaration for 'fd_set'

如果程序编译时报 [C++ Error] winsock2.h(109): E2238 Multiple declaration for 'fd_set' 这样的错误,可以尝试在,winsock2.h前面加入vcl.h 如下: #include <vcl.h>#include "youheader.h"#include "winsock2.h"…

[bcc32 Error] ws2def.h(231): E2238 Multiple declaration for 'sockaddr'

[bcc32 Error] ws2def.h(231): E2238 Multiple declaration for 'sockaddr' Full parser context ksrGetMac.cpp(14): #include d:\program files (x86)\embarcadero\studio\18.0\include\windows\vcl\Dialogs.hpp Dialogs.hpp(11): #include d:\program files (x…

Google C++ Style Guide

Background C++ is one of the main development languages used by many of Google's open-source projects. As every C++ programmer knows, the language has many powerful features, but this power brings with it complexity, which in turn can make code more…

linux内核升级图文攻略(转)

一.Linux内核概览Linux是一个一体化内核(monolithic kernel)系统.设备驱动程序可以完全访问硬件.Linux内的设备驱动程序可以方便地以模块化(modularize)的形式设置,并在系统运行期间可直接装载或卸载.1. linux内核linux操作系统是一个用来和硬件打交道并为用户程序提供一个有限服务集的低级支撑软件.一个计算机系统是一个硬件和软件的共生体,它们互相依赖,不可分割.计算机的硬件,含有外围设备.处理器.内存.硬盘和其他的电子设备组成计算机的发动机.但是没有软件…

C 和 C++的不同

转自: http://studytipsandtricks.blogspot.com/2012/05/15-most-important-differences-between-c.html Basic Introduce: C++ is derived from C Language. It is a Superset of C. Earlier C++ was known as C with classes. In C++, the major change was the addition…

linux内核升级图文攻略

Linux内核概览 Linux是一个一体化内核(monolithic kernel)系统. 设备驱动程序可以完全访问硬件. Linux内的设备驱动程序可以方便地以模块化(modularize)的形式设置,并在系统运行期间可直接装载或卸载. 1. linux内核 linux操作系统是一个用来和硬件打交道并为用户程序提供一个有限服务集的低级支撑软件. 一个计算机系统是一个硬件和软件的共生体,它们互相依赖,不可分割. 计算机的硬件,含有外围设备.处理器.内存.硬盘和其他的电子设备组成计算机的发动机.…

Google C++ 代码规范

Google C++ Style Guide Table of Contents Header Files Self-contained Headers The #define Guard Forward Declarations Inline Functions Names and Order of Includes Scoping Namespaces Unnamed Namespaces and Static Variables Nonmember, Static Member, an…

linux 内核升级2 转

linux内核升级一.Linux内核概览 Linux是一个一体化内核(monolithic kernel)系统. 设备驱动程序可以完全访问硬件. Linux内的设备驱动程序可以方便地以模块化(modularize)的形式设置,并在系统运行期间可直接装载或卸载. 1. linux内核 linux操作系统是一个用来和硬件打交道并为用户程序提供一个有限服务集的低级支撑软件. 一个计算机系统是一个硬件和软件的共生体,它们互相依赖,不可分割. 计算机的硬件,含有外围设备.处理器.内存.硬盘和其他的电子设…

redhat server 5.3内核升极2.6.18 升级到 3.5 装systemtap 原创

1. 在 LINUX 3.5源代码目录下执行 yum install ncurses-devel make menuconfig 2 打开内核跟踪事件,用于SYSTEMTAP跟踪 kernel hacking --->tracers(new)--->enable uprobes-based dynamic events 文件系统相关选项要打开即为 CONFIG_SYSFS_DEPRECATED_V2=y 不这样设为出错,安装内核重起后就会出现如下状况 mount: could n…

包含Winsock2.h出错问题

工程中添加 Winsock2.h 报错 1>c:\program files (x86)\windows kits\8.1\include\shared\ws2def.h(100): warning C4005: 'AF_IPX' : macro redefinition1> c:\program files (x86)\windows kits\8.1\include\um\winsock.h(452) : see previous definition of 'AF_IPX'1>c:…

C++编译错误：multiple types in one declaration

这是在使用QT的时候看到的.这种情况往往是结构体或者是class最后少加了一个分好,加上即可,这个bug找了我好久,mark一下.…

[LeetCode] Read N Characters Given Read4 II - Call multiple times 用Read4来读取N个字符之二 - 多次调用

The API: int read4(char *buf) reads 4 characters at a time from a file. The return value is the actual number of characters read. For example, it returns 3 if there is only 3 characters left in the file. By using the read4 API, implement the function…

c a header file realize of multiple .c file

//I write a few variables declaration,then include this head-file in multiple realization-c-file,then appear "multiple definition of 'var1 ' " error resolution: exists-file:myhead.h,realize1.c,realize2.c,main.c add:myhead.c 1.move the defintion-…

Natural language style method declaration and usages in programming languages

More descriptive way to declare and use a method in programming languages At present, in most programming language, a method is declared in few parts: keyword, method name, method parameters and return type etc. E.g. function int add(int a, int b) \\…

xml bug之cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration...

1.今天重装了一下MyEclipse7.5,打开原来的Flex项目,又报了以下两个错误,之前解决过,但不想又出现,于是把它的解决方法贴出来,做个备忘! 错误信息为错误信息写道 cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'flex:message-broker'. cvc-complex-type.2.4.c: The matching…

Multiple markers at this line @Override的解决方法

Multiple markers at this line - implements java.awt.event.ActionListener.actionPerformed - The method actionPerformed(ActionEvent) of type DimmingGlassPane.Animator must override a superclass method - Javadoc: Missing comment for private declaration…

Multiple bindings were found on the class path(转)

Multiple bindings were found on the class path SLF4J API is designed to bind with one and only one underlying logging framework at a time. If more than one binding is present on the class path, SLF4J will emit a warning, listing the location of those…

cvc-elt.1: Cannot find the declaration of element 'beans'Failed to read schema document 'http://www.springframework.org/schema/beans/spring- beans-3.0.xsd'

Multiple annotations found at this line: - cvc-elt.1: Cannot find the declaration of element 'beans'. - schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/beans/spring- beans-3.0.xsd', because 1) could not find…

The dis/advantage of forward declaration

In our projects, in C++ head file, if reference to some classes (reference or pointer), instead of include header file directly, we recommend to use forward declaration. Obviously, it can take some advantage to you. Reduce the compile time Avoid name…

《Spring实战》-- 'cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element' 错误的解决办法

在Eclipse中新建了一个maven项目学习Spring,在 service.xml 中配置 Spring,想要学习'面向切面的Spring',service.xml 内容如下: <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://w…

cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration的解决

导入了一个工程,编译什么的都还好,但是报了一个XML的错误. cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'dubbo:application'. 具体错误如下: Multiple annotations found at this line: - cvc-complex-type.2.4.c: The matching wildc…

Declaration Merging with TypeScript

原文:https://blog.oio.de/2014/03/21/declaration-merging-typescript/ Why might you need this? There can be several scenarios where this might be required. One of the most common ones is when you want to extend an existing JavaScript library that comes w…

but no declaration can be found for element 'aop:aspectj-autoproxy'.

1.错误描写叙述 Multiple annotations found at this line: - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'aop:aspectj-autoproxy'. - schema_reference.4: Failed to read schema document 'http://www.springf…

Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define ...

Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define ... 这个错误是因为有两个相同的jar包,删除其中一个就可以正常运行了.…

POJ 2356. Find a multiple 抽屉原理 / 鸽巢原理

Find a multiple Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7192 Accepted: 3138 Special Judge Description The input contains N natural (i.e. positive integer) numbers ( N <= 10000 ). Each of that numbers is not greater than 15000…

cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'mvc:annotation-driven'.

spring 配置文件报错报错信息:cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'mvc:annotation-driven'. spring-web.xml /soaweb/src/main/resources line 14 XML Problem解决办法:schemal中增加tx支持<?xml version=…