undeclared identifier

Transferred from: http://blog.csdn.net/keyeagle/article/details/6708077Google has nearly three pages of the C language of static content, found that the available information is very little, either long-winded or in the key point of a few words, for

C + + typename usage Directory common usage of TypeName For typename this keyword, if you are familiar with C + + templates, you will know that it has one of the most common uses (code is excerpted from C + + Primer): Implement Strcmp-like

can refer to the online manual download CMake source package for installation, http://www.cmake.org/download/Run sudo after decompression./bootstrap && sudo make && sudo make installHowever, when executing./bootstrap, the following error is reported:

Cc1:warnings being treated as errorssrc/event/ngx_event_openssl.c:in function ' Ngx_ssl_init ':Src/event/ngx_event_openssl.c:112:error: ' Openssl_config ' is deprecated (declared at/usr/local/src/nginx/

Distributed memcached Server Proxy magent installation configuration (CentOS6.6)Reference: http://blog.snsgou.com/post-800.htmlFour servers: 192.168.1.246~249Magent Proxy Server: 192.168.1.246Memcache Backup Server 1:192.168.1.249Memcache Storage

Linux 3.10 busybox InitramfsBuildQemuDebugMy environment is a CentOS 7 64-bit system run by VM Ware virtual machine1: InstallationQemuFirst install SDL, responsible for QEMU running only after the VNC server running on ':: 1:5900 ', and does not

Install GCC with " local Yum source installation gcc " first.HP laptop installed CentOS6.3, did not install the wireless card driver, install the driver, Google found a lot of information, finally solved the problem. Make some records here and hope

I. Linux kernel overviewLinux is an integrated kernel (monolithic kernel) system.The device driver has full access to the hardware.Device drivers within Linux can be conveniently set up in a modular (modularize) format and can be mounted or unloaded

Note: This article reproduces the Linux root file system built from http://blog.sina.com.cn/u/2478597014 with BusyBox (2015-07-05 14:25:02)  VMS: Virtual Box4.2.6 and VMware Workstation6.5.2 (both virtual machines have been successfully implemented)

Since MySQL is compiled from version 5.5 after the source code is installed with CMake, make, made install installed, not./configure,make,make install installation, so to see if the system is not cmake this command, Red Hat Enterprise 5 is not

A tricky question:If the serial port is not plugged into the PC, the Petalinux system will not start. Then want to disable the serial port, disable off, re-petalinux-config--get-hw-description-p. /And then Petalinux-build, there was an

Fatal error C1003:error count exceeds number; Stopping compilation(compilation error) Too many errors, stop compilingAnalysis: Modify the previous error, compile again Fatal error c1004:unexpected end of file found(compilation error) file not

1. Declaring external variables Modern compilers are generally compiled by file, so at compile time, the global variables defined in each file are Transparent to each other, that is, at compile time, the visible domain of the global variable is

Submitted by Felix on 2007, November, 11:51 AM. The technology of Swine This article is a comprehensive reference to several articles written in this, thanks to several authors, the following is the reference to a few of the original

MPlayer supports only 16BPP graphics display and does not support 8BPP graphics display, so when the MPlayer program runs on the Development Board with an LCD configured as STN, only sound can be played, graphics cannot be displayed, and when the

When you invoke a micro-interface, if you encounter a nickname or message that contains an expression, you will see an error similar to incorrect string value: ' \xf0\x8f ' for column ' XXX ' when you write the data to MySQL. The reason is that the

Coreseek installation is troublesome, the Official handbook is not very good support for this. Coreseek is a Chinese word segmentation and Full-text search software based on Sphinx. This article is to install and debug Coreseek under the Mac OS x

Grunt-contib-imagemin is a nodejs based plug-in for lossless image compression. The entire grunt-contib-imagemin is made up of a number of widgets, such as Java jar packages, the following four plug-ins are its core components (Linux Toolkit,

The first is to install the CMake environment. Because Bo main test machine is Ubuntu, so directly with Apt-get install CMake command to install, Yum believe should also be the same. Alternatively, you can compile the installation in the following

Enumerationenumerations are user-defined types that contain a set of named integer constants called enumerators.Grammar unscoped enum: enum [identifier] [: Type] {enum-list}; scoped enum: enum [class|struct] [identifier] [: Type]