auto reflections

Article 2: Understanding Auto Automatic type DeductionIf you've read article 1 about template type deduction, you almost already know all about auto type deduction. As for why auto type deduction is the template type deduction there is only one place to be curious. What is that? That is, template type deduction includes templates, functions, and parameters, and

Attention: Also to learn a ↑↑↑↑ Such a box of fragments is not from the original book , but my own understanding.Item 2 Understand Auto Type deduction-AutoType deductionBefore C++11, theauto keyword has been used to declare variables for the automatic storage type, with virtually no practical role, status and export Keyword (used to export a template outside of the compilation unit, and is also canceled in c++11).In the c++11,

Original works, reprint please indicate: http://blog.csdn.net/Xiejingfa/article/details/50469045 As anyone familiar with the scripting language knows, many scripting languages introduce "type auto inference" techniques: For example Python, you can declare variables directly, and type check at runtime. With the release of the C++11 standard, the C + + language also introduces the function of type automatic inference, which is the

. It's not too late! Directly paste the Code: The CSS code is as follows: The Code is as follows: The JS Code is as follows: The Code is as follows: /*** Email auto-Prompt plug-in* @ Constructor EmailAutoComplete* @ Options {object} configurable items*/ Function EmailAutoComplete (options ){This. config = {TargetCls: '. inputElem', // target input elementParentCls: '. parentcls', // The parent class of the current input elementHiddenCls: '. hidd

Limitations of Innodb and Myisam storage engines on auto_crement: The auto-increment column in Innodb must be the index and the first column in the index. Otherwise, the following error will be reported: there can be only one column and it must be defined as a key; myISAM does not have this restriction. MyISAM adopts the table lock design, so you do not need to consider concurrency issues for self-growth; How auto_increment works in Innodb: A table co

Mysql auto-incrementing column leads to duplicate primary key issue analysis..., mysql primary key A few days ago, the development of shoes reported a problem of using the load data infile command to import data primary key conflicts. After analysis, it was determined that this problem may be a bug in mysql. I would like to share it with you here. In the future, it is difficult to sleep because of similar problems encountered by children's shoes. Haha

During this period of time, I suddenly became idle, and I was tossing and tossing Emacs. I always wanted to solve the auto-completion function because of the essential features of the modern development environment. Google, many of them use auto-complete and yasnippet, so they installed them on their own. First, check the installation documentation, and refer to other people's methods, various twists and t

string length, or to find a character in a string, and so on, which greatly facilitates the processing of strings. For example://defines a string variable that holds the user name entered by the userstringStrName =""; cout"Please enter user name:"Endl;//Gets the user input string and saves it to the strname variableCin>>StrName;//gets the length of the strname by the string type length () function//and determine if its length is less than 6 (less than 6 characters in a string)if(Strname.length

Programming often requires the value of an expression to be assigned to a variable, which requires that the type of expression be clearly known when declaring a variable. But it's not always easy to do this, and sometimes it's not even possible. To solve this problem, the C++11 standard introduces the auto type specifier, which allows the compiler to parse the type that the expression belongs to. Unlike the original descriptor, which corresponds to o

IOS6 Automatic layout Getting Started –auto layout (GO) Tags: gossip So far, even if your interface design is within reasonable complexity, you have to write a lot of code to adapt to the changing layout. Now I'm sure you'll be glad to hear that this will not happen-for iphone and ipad IOS6 has brought a very remarkable feature: automatic layout.The automatic layout not only gives your application a wide variety of scr

I will give you a detailed analysis and share with you the tutorial on customizing auto-focus settings for AI Servo of Canon 7D.Tutorial sharing:Types and features of auto focus modeChoosing the most suitable auto-focus mode based on the situation of the subject is the basis for auto-focus shooting. I hope you can unde

How does SQL Server modify the auto-increment column value and corresponding solutions? A special task encountered in today's work is to change the values of the two auto-incrementing columns.Since the SQL Server platform has previously migrated the SQL server database, it has tried to change its auto-increment value. However, it uses SQL statements to modify the

automatic layout!Springs and Struts problemsThere is no doubt that you may be more familiar with autosizing masks-this is the "springs and struts" pattern. Autosizing mask determines what happens to a view when its superview changes size. Does it have the flexibility and automatic repair of the page edge processing capability (the struts), and what will happen to its width and height (the springs)?For example, when the width of a view's superview is wider, its width is also flexibly widened, an

type deduction in C++11 is to redefine the Auto keyword, and another implementation is decltype.We can use the C++11 method to write the Python code just now.#include Here, the Auto keyword is used to require the compiler to automatically derive the type of the variable name. Here the compiler infers the type of name as char*, depending on the type of its initialization expression. In fact, the Atuo keywor

I have been searching for it online for a long time. Some people say that uuid is better, that is, it is easier to merge data into sub-databases and sub-tables, and some people say that auto-increment is better, when there is more data in the table, the performance is much better than the uuid. What is better? Are there any great gods in the real production environment to give a complete... I have been searching for it online for a long time. Some peo