［why inline functions must be put in header files?］ 编译中有2个过程:compile.link.先进行compile,compile中把源代码编译成目标代码(.obj),然后是link,把目标代码(obj)中的外部符号替换为真实的地址. inline函数的作用是减少函数调用而直接使用函数内部内容,显示是发生在compile阶段.所以如果把inline函数放在cc文件中,则compile过程中无法实现inline效果,连接器将给出 “unreso…

Problems: (Page 372) There are two problems with the use of proprocessor macros in C++. The first is also with C: a macro looks like a function call, but does not act like one. This can bury difficult-to-find bugs. The second problem is specific to C…

4.5 Inline Functions 以下是Point class 的一个加法运算符的可能实现内容: class Point { friend Point operator+(const Point&, const Point&); }; Point operator+(const Point &lhs, const Point &rhs) { Point new_pt; new_pt._x = lhs._x + rhs._x; new_pt._y = lhs._y +…

按照下面的步骤能成功,亲测.转帖,做笔记 编译php-5.5-6的mysql支持,出现Cannot find MySQL header files under /usr/include/mysql. Note that the MySQL client library is not bundled anymore!错误!解决方法如下: [root@localhost php-5.5.6]# ./configure --prefix=/usr/local/php --with-config-fil…

TN035: Using Multiple Resource Files and Header Files with Visual C++ This note describes how the Visual C++ resource editor supports multiple resource files and header files shared in a single project or shared across multiple projects and how you c…

VC中Source Files, Header Files, Resource Files,External Dependencies的区别 区别: Source Files 放源文件(.c..cpp)程序的实现代码全放在这里: Header Files 放头文件(.h)声明放在这里: Resource Files 资源文件(.rc)放图标.图片.菜单.文字之类的,主要用来做界面的东东一般都放这里: External Dependencies 除上三种以外的,程序编译时用到的文件全放这里. 头文…

编译php-5.5-6的mysql支持,出现Cannot find MySQL header files under /usr/include/mysql. Note that the MySQL client library is not bundled anymore!错误!解决方法如下: [root@localhost php-5.5.6]# ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php…

问题: 解决方法: sudo apt-get install ncurses-dev 参考:Unable to find the ncurses libraries or the required header files解决…

php的配置文件中有一行--with-mysql=/usr/local/mysql ,安装的时候提示:configure: error: Cannot find MySQL header files under yes.Note that the MySQL client library is not bundled anymore. 这是由于安装mysql时没有安装mysql头文件,或者是路径指定不正确,php找不到mysql的头文件引起的错误提示. 解决方法.1. 查看你的系统有没有安装my…

原文地址:C header files matching your running kernel were not found.作者:[Opser]小默 c header files matching your running kernel were not found 2011年12月08日 星期四 18:42 vmware 6.5.5 for linux 版本 ,安装完成后执行时报错 "c header files matching your running kernel were not…

checking for specified location of the MySQL UNIX socket... no checking for MySQL UNIX socket location... /tmp/mysql.sock configure: error: Cannot find MySQL header files under yes. Note that the MySQL client library is not bundled anymore. 解法: 如果不知道…

C header files matching your running kernel were not found. Refer to your distribution's documentation for installation instructions - NoH4cker - 博客园 http://www.cnblogs.com/NoH4cker/p/4840571.html centos6 安装wmwaretools找不到kernel header - jiejnan - 博客园…

linux下安装php报错configure: error: Cannot find MySQL header files under /usr/include/mysql. 2013-03-04 15:34wdjhz | 分类:服务器软件 | 浏览5318次 configure: error: Cannot find MySQL header files under /usr/include/mysql.Note that the MySQL client library is not bun…

Please install the Linux kernel "header" files matching the current kernel 当我启动minilkube时遇到如下错误消息: Minikube setup with driver virtualbox Starting local Kubernetes v1.10.0 cluster... Starting VM... E1010 03:57:24.565157 9896 start.go:174] Error s…

问题: *** Unable to find the ncurses libraries or the *** required header files. *** 'make menuconfig' requires the ncurses libraries. ***  *** Install ncurses (ncurses-devel) and try again. *** make[1]: *** [scripts/kconfig/dochecklxdialog] Error 1 解决…

安装VMWare Tools出现提示:Enter the path to the kernel header files for the 3.18.0-kali1-686-pae kerne? 2015年02月15日 渗透测试 评论 1 条 阅读 4,421 次   由于缺少头文件导致的,只要安装linux header即可: 1.先更新软件源: 先备份软件源sources.list文件,然后修改sources.list文件,在终端输入: leafpad /etc/apt/sources.lis…

在编译安装php服务时报错: configure: error: Cannot find MySQL header files under /application/mysql. Note that the MySQL client library is not bundled anymore! 前边搭建lnmp环境时,是把mysql和php安装在了同一台机器上,编译php的时候,需要通过参数 --with-mysql来指定mysql的安装路径,但在生产环境中,通常php和mysql是不在同一台…

影响性能的一个重要因素是内联技巧.内联函数也可称为内嵌函数. 在C++中,函数调用需要建立栈环境,进行参数复制,保护调用现场,返回时,还要进行返回值复制,恢复调用现场.这些工作都是与完成特定任务的操作无关的额外开销.程序效率由于该项工作而受到影响. 可以将函数声明为内联函数.对函数的内联声明必须在调用之前.因为内联函数的代码在程序运行时是直接嵌在调用执行处,它不影响链接,只在编译时确定运行代码.因此编译时,在调用之前看到内联函数声明就十分重要. 内联函数体应该尽可能小,且结构要简单,不能含有复杂…

https://stackoverflow.com/questions/30045871/sorting-the-view-based-on-frequency-in-sql-server Just like in sub queries, you can't use ORDER BY in a view definition in sql server unless you also use TOP. The reason for this is that Views are acted up…

在本模块导出头文件时,可以使用如下方式: LOCAL_EXPORT_C_INCLUDE_DIRS := $(MY_DIRECTORY_PATH) LOCAL_EXPORT_C_INCLUDES := $(PATH) 模块编译版本 LOCAL_MODULE_TAGS :=user eng tests optional user: 指该模块只在user版本下才编译 eng: 指该模块只在eng版本下才编译 tests: 指该模块只在tests版本下才编译 optional:指该模块在所有版本下都编译…

1.使用ctrl+z停止安装vmtools安装 2.然后yum升级kernel-devel yum -y install kernel-devel…

$ sudo apt-get install build-essential linux-headers-$(uname -r) cd /lib/modules/$(uname -r)/build/include cp generated/uapi/linux/version.h linux/version.h…

#yum install gcc gcc-c++ libxml2 libxml2-devel libjpeg-devel libpng-devel freetype-devel openssl-devel libcurl-devel libmcrypt-devel 安装php依赖的包​​ 由于是yum安装不需要写-with-mysql=**** 这是我编译成功的内容 ./configure --prefix=/usr/local/php56 --with-config-file-path=/us…

<Item29> Strive for exception-safe code. 1.如下面的代码 class PrettyMenu { public: ... void changeBackground(std::istream& imgSrc); // change background ... // image private: Mutex mutex; // mutex for this object Image *bgImage; // current background…

https://github.com/PacktPublishing/Game-Development-Patterns-and-Best-Practices https://github.com/mattCasanova/Mach5 1. Introduction to Design Patterns (已看) 2. One Instance to Rule Them All - Singletons (已看) 3. Creating Flexibility with the Componen…

from:http://lazyfoo.net/tutorials/SDL/01_hello_SDL/index.php Last Updated 6/11/19 So you learned the basics of C++, but you're sick of making little text based programs. In order to use things like graphics, sound, keyboards, joysticks, etc you need…

About why inline member function should defined in the header file. It is legal to specify inline on both the declaration and the definition. But the keyword inline must be placed with the function definition body to make the function inline. Just pu…

前言 先看一段代码 #ifndef _INLINE_H #define _INLINE_H template<typename T> static inline T my_max(T a, T b) { a *= 2; b /= 3; return (a>b) ? a : b; //找出最大值 } #endif 代码本身逻辑很简单,无外乎简单的找出两个T类型变量中大者. 这里有几个关键字的用法很值得深究,特此记录下感想. inline 简单的理解inline就是,他只有带参宏的优点,没有…

转自:https://gcc.gnu.org/onlinedocs/gcc-4.0.0/gcc/Function-Attributes.html 5.24 Declaring Attributes of Functions In GNU C, you declare certain things about functions called in your program which help the compiler optimize function calls and check your…

Functions Functions allow to structure programs in segments of code to perform individual tasks. In C++, a function is a group of statements that is given a name, and which can be called from some point of the program. The most common syntax to defin…