inline

Why I can't define inline member function in another file?

由 拈花ヽ惹草 提交于 2019-12-23 07:49:39
问题 I have three files: 1. Joy.h class Joy { public: void test(); }; 2. Joy.cpp #include "Joy.h" inline void Joy::test() {} 3. main.cpp #include "Joy.h" int main() { Joy r; r.test(); return 0; } I try to compile them using: g++ cpp Joy.cpp g++ say: main.cpp:(.text+0x10): undefined reference to `Joy::test()' Who can tell me why... How to solve this problem if I don't want to define that test() function in the .h file and still want it to be an inline function? 回答1: when you define an inline member

ibatis inline parameter with # in order by clause

由 做~自己de王妃 提交于 2019-12-23 05:14:02
问题 below is my ibatis map configuration, <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd"> <sqlMap namespace="Contact"> <!--- Showing all data of table --> <select id="getAll" resultClass="com.nik.Contact"> select * from contact <dynamic prepend="where "> salary like '%' <isNotNull property="orderby" > order by #orderby#, #orderby2# </isNotNull> </dynamic> </select> </sqlMap> this is my pojo

jQuery UI Datepicker: Highlight 7 days

由 亡梦爱人 提交于 2019-12-23 05:10:59
问题 I am using the jQuery UI Datepicker. It is set to inline so it is displayed to the user all the time. The datepicker allows you to select one day however I want to be able to select a week (of seven days) So if the user clicks for example on Wednesday 2009/10/14 it should not only highlight the 2009/10/14 but highlight all days from 2009/10/14 to 2009/10/20. How can I realize that? 回答1: http://jquery-datepicker.googlecode.com/issues/attachment?aid=-4481469706841499120&name=jquery.datePicker

G++ and LTO: how to separate declaration and definition?

由 笑着哭i 提交于 2019-12-23 04:57:15
问题 Since LTO can resolve inline symbols from other object files, I tried to separate declaration and definition for inline functions. Here is the 3 files, dep.hpp , dep.cpp and main.cpp , where main.cpp and dep.cpp are linked together and dep.hpp is #include d in both: // dep.hpp, declaration #ifndef _DEP_HPP_ #define _DEP_HPP_ inline void sayHello(); #endif // dep.cpp, definition #include "dep.hpp" #include <iostream> inline void sayHello() { std::cout << "Hello World!" << std::endl; } // main

Filter results with Jquery

由 孤街醉人 提交于 2019-12-23 04:48:54
问题 I've created a search form for a script in php. Basicaly this form have some checkboxes and a submit button. Each checkbox is a category, if I check one or more checkboxes the result is filtered by thoose categories. Here is the html code: <?php if ($_POST['do_search'] == 'true') { $results = 'Do the query and store results in the $results var'; } ?> <form method="post" action="search.php" id="search"> <input type="checkbox" name="categories[]" id="categories[]" value="1">Category 1 <input

Kotlin-5-高阶函数+Unit+Inline

由 ☆樱花仙子☆ 提交于 2019-12-22 20:08:44
目录 1、定义： 2、Unit的定义 3、高阶函数的实现： 4、inline关键字 5、如何在AndroidStudio中查看kotlin编译后的class源码 1、定义： 高阶函数是指： 函数（Lambda）的参数是函数（Lambda） 2、Unit的定义 /** * Unit的定义：在kotlin中当一个函数没有返回值的时候，默认返回一个Unit类型。 * 我们大部分情况是可以省略这个Unit的，但是当参数是一个没有 * 返回值的Lambda匿名函数的话，就需要声明出来 */ 3、高阶函数的实现： 下面的gaoFun()函数的参数除了一个布尔类型的isSay以外，还有一个lambda函数作为了参数。这种函数我们就称之为高阶函数。 fun gaoFun(isSay: Boolean, lambda: () -> Unit) { if (isSay) { println("高阶函数的参数lambda()匿名函数传了进来") lambda() } } //main()函数的Unit就是省略的。（这里我特意加上了） fun main(): Unit { //这里我们将lambda匿名函数传给了gaoFun gaoFun(false, { println("我是高阶函数") }) //因为gaoFun函数的最后一个参数是Lambda，所以我们可以将lambda匿名函数放在小括号的后面

Which is better for left-to-right layout: float or display:inline?

由 给你一囗甜甜゛ 提交于 2019-12-22 16:32:13
问题 I have some icons inside divs and needed to lay them out with a left-to-right structure instead of the default top-to-bottom layout that seems to come with divs. It's probably not news to most people who know CSS but I figured out (with a little help) that I could cause the divs to layout left-to-right using either: float: left/right or display:inline. My question is - is one preferable over the other ? <div id="icons"> <div id="divtxt" class="divicon"> <img src="/icons/text.png" id="icontxt"

Which is better for left-to-right layout: float or display:inline?

由 僤鯓⒐⒋嵵緔 提交于 2019-12-22 16:32:04
问题 I have some icons inside divs and needed to lay them out with a left-to-right structure instead of the default top-to-bottom layout that seems to come with divs. It's probably not news to most people who know CSS but I figured out (with a little help) that I could cause the divs to layout left-to-right using either: float: left/right or display:inline. My question is - is one preferable over the other ? <div id="icons"> <div id="divtxt" class="divicon"> <img src="/icons/text.png" id="icontxt"

Can the implementation of a virtual function be put in the header file

由 给你一囗甜甜゛ 提交于 2019-12-22 12:42:21
问题 usually if we put an implementation of a non-virtual member function in the header file that function would be inlined. how about if we put the implementation of a virtual member function in the header file? I guess it would be the same as putting it in the cpp file because inlining and polymorphism do not work together. Am I right on this? 回答1: Putting the implementation of a method in the header file doesn't make it inline. Putting it in the class declaration does. I'll assume that's what

Inline member operators vs inline operators C++

由 别等时光非礼了梦想. 提交于 2019-12-22 10:37:34
问题 If I have two structs: struct A { float x, y; inline A operator*(A b) { A out; out.x = x * b.x; out.y = y * b.y; return out; } } And an equivalent struct struct B { float x, y; } inline B operator*(B a, B b) { B out; out.x = a.x * b.x; out.y = a.y * b.y; return out; } Would you know of any reason for B's operator* to compile any differently, or run any slower or faster than A's operator* (the actual actions that go on inside the functions should be irrelevant)? What I mean is... would
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