effective modern c

#define aspect_ratio=1.1Const Double aspectratio=1.11. Using a macro causes the preprocessor to unconditionally replace the Aspect_ratio in the program code with 1.1, the compiler has never seen Aspect_ratio, debug compilation can be difficult to track, and the const constant resolves the problem.2. The scope of the macro definition is the subsequent compilation process until it is #undef, so the macro definition cannot be used as an exclusive constant for the class, for example, we want to defi

GIS solution for modern enterprise electronic map, Modern Enterprise gisSince the 1990s s, [url = http://www.forbst.com] electronic map application [/url] has received people's attention, but due to the limitations of the times and the immature development of market economy. The application of geographic information system has not been well utilized. Only a few national institutions and military systems can

1. Get the latest version of modern UI for WPF 2. Open Vs and create a new WPF ApplicationProgramName: muitest 3. Add firstfloor. modernui. dll 4. Define modernwindow to inherit from mainwindow Open mainwindows. XAML, add the xmlns namespace of modernui and use Mui to replace the window tag, as shown below: " Muitest. mainwindow " Xmlns = " Http://schemas.microsoft.com/winfx/2006/xaml/presentation " Xmlns: x = " Http://schemas.microsof

Modern deep copy writing and modern deep copy writing The modern method of deep copy is simpler than the traditional method. That is, an intermediate object tmp is created. Its _ str Pointer Points to s. _ str, exchange tmp. after _ str and _ str, _ str points to s. _ str: if the copy is out of the scope, tmp will automatically call its destructor, releasing the

Create a modern UI app using the project template Before doing this, make sure that the modern UI for WPF templates extension for Visual Studio 2012 is installed. Download and install the vsix extension fromVisual Studio Gallery Or In Visual Studio 2012, open the Extension Manager (Tools>Extensions and updates) SelectOnline>Visual Studio GalleryAnd search'Modern UI' SelectModer

Two modern methods of cross-subdomain ajax request, ajax cross-subdomain modern Because of the nature of the Internet, most of our company's systems are developed and deployed in the form of multi-subdomains to achieve the goal of loose coupling and distribution. Therefore, interaction between subsystems is inevitable. Although the rpc framework in the background solves most of the interaction problems, in

In the field of art and design, due to the influx and infiltration of various foreign new thoughts, we have shaken our intrinsic values and aesthetic standards. Make our works more and more away from the national character and lose their own right to speak, the same, the traditional not to discard the tracing also led to the stagnation of national technological development. Therefore, how to understand the relationship between the traditional plastic arts and

Reference programme I: 1, the use of desktop version of IE10/IE11 access: res://ieframe.dll/defaultbrowser.htm, according to the prompts, will ie10/ie11 set as the default browser, restart the system, run the modern version of IE application. Reference Programme II: Enter modern computer settings "search and Application" Default application, choose the Default Web browser for Internet Explore

Introduction to modern Batch and computational-intensive programming models Brief introduction A batch process is a traditional and indispensable component of any enterprise IT domain. The current batch development trend is to apply internal Java skills to online programs and batch programs to ensure that: Maximize the reuse of implementations. Easier development and maintenance because the same toolset is used. Consistency in the implementation

This chapter talk about the modern front-end framework of the cognition, there is a certain reference value, the need for friends can refer to, I hope to help you. So why do people need to choose various frameworks now? In fact, we need to choose a framework now, essentially because the demands we face are changing. We all know that if we only write a page that displays information purely, there is no interactive function of the page, in fact, even n

In the win8/win8.1 new operating system, Microsoft added a modern lock screen function. In the modern lock screen interface can provide users with time, network connectivity status, batteries and other information. Users who transition from Windows XP or Win7 systems to win8/win8.1 systems may not favor the modern lock screen, and each need to slide

The evolution of JavaScript is gradual and steady. Over the course of the past decade, JavaScript has evolved from a simple plaything of language to a much-admired programming language that has been used by companies and developers all over the world to construct incredible applications. The modern JavaScript programming language has always been reliable, robust, and incredibly powerful. Many of the things I've discussed in this book will reveal what

and SEO industry, in various industries is a very new industry, but now also has a decade of development. Today, SEO industry is no longer the user's heart mysterious maze of forest, but who can set foot in a common field. For users, the providers of SEO services are just workers, and they are "God". It can be said that in these more than 10 years, the SEO industry has achieved a dominant position from the webmaster to the user's conversion. But SEO skills in these years did not appear a very bi

"copyright notice: respect for the original, reproduced please retain the source: blog.csdn.net/shallnet, the article only for learning Exchange, do not use for commercial purposes"The modern computer computation process is usually the high-level language program which the user writes and feeds into the computer, translates the machine to recognize the language program, and then the machine automatically runs the language program to calculate the res

entries, also found the physical address, you can actually access the data.But in the modern kernel, there are many differences in memory management.First, the linear address space does not change, and the 32-bit CPU can address 4G linear space. This is the only one.But how does each process have its own independent 4G virtual space? In fact, each process gives it its own page directory, so that each process can have 4G of virtual space (logical spac

The Win8 modern UI, formerly known as the Metro UI, is a new, personalized interface designed specifically for the WIN8 system. But many users are not very accustomed to using this modern UI interface, do not want the application function, but do not know how to cancel it. Because this interface does not turn off the function, then how to do? In general, we will use Task Manager or through the application s

The current password must be tested by countless people, proving that there is no trap. If you are not public, no one believes in the security of your algorithm.Many algorithms are later proven to be unsafe. Simply put, the three main foundations of modern cryptography are:1, the introduction of large prime numbers;3, the irreversible nature of the algorithm;2, based on computer operation rather than hand calculation.Based on these three points, in

Spy = function(firstName, lastName, age){ this.firstName = firstName; this.lastName = lastName; this.age = age;};Spy.prototype = new Person();Spy.prototype.spy = function(){alert(this.fullName() + " is spying.");}var mySpy = new Spy("Mr.", "Spy", 50);mySpy.spy(); As you can see, we've created a constructor that 's very similar to person, but its prototype is an instance of person. Now we have added some methods that allow the spy instance to invoke the person's method, as well as dir

The ins and outs of the problem: When you try to select the IE10 browser tile in the Windows 8 start screen, the traditional mode IE10 browser is turned on instead of the IE10 browser in the expected modern mode. The cause of the problem: Installing other vendors ' browsers in your Windows 8 system, such as Chrome, Firefox, and so on, and you do not set IE browser as your default browser, in which case you will not be able to use the

1. OverviewThere are more than dozens of different business systems in the construction of modern airport informationization, different business systems are often developed by different companies adopting different standards and different interfaces, there is a large amount of data exchange between these business systems, and it is necessary to use EAI technology to deal with the data exchange between different business systems. Under the current SOA