tvos 11 features

number of the original arrayFor_each (Iv.begin (). Iv.end (), [] (int x) {Cout//output is 9 6 One more example:std::vectorint>V;v.push_back (1); V.push_back (2); V.push_back (3); Std::for_each (Std::begin (v), Std::end (v), [] (intN) {std::cout Std::endl;}); //Output is 1 2 3 auto is_odd= [](intN) {returnn%2==1;}; //define a function is_odd, return 1 (not be able to be 2 integers) or 0 (can be 2 integers)Auto pos=std::find_if (Std::begin (v), Std::end (v), is_odd); //find_if The data for the F

New Features of C ++ 11, Using std: chrono to streamline the traditional method of getting system time, stdchronoI. Traditional methods for obtaining system time The traditional method for obtaining time in C ++ needs to be defined by platform. I believe there are also a lot of Baidu code. I wrote it myself, as shown below. const std::string getCurrentSystemTime(){if (PLATFORM_ANDROID || PLATFORM_IOS){stru

This article references: http://www.ibm.com/developerworks/cn/aix/library/1212_lufang_c11new/#ibm-pconTwo new features of the C++11 standard: defaulted and deleted functions. For the defaulted function, the compiler automatically generates a default function definition body for it, which results in higher code execution efficiency, and eliminates the programmer's effort to manually define the function. For

New Features of iOS 11 application: iosapplication1.-(void) applicationWillResignActive :( UIApplication *) application Description: When an application is about to be executed in an inactive state, during which the application does not receive messages or events, for example, the call 2,-(void) applicationDidBecomeActive :( UIApplication *) application Description: when the application enters the activity

New Features of C ++ 11 (6) range-based for Loop In C ++ 11, a Range-based for loop is added, which saves much of our code. From Wikipedia: http://zh.wikipedia.org/wiki/C++0x#.E5.80.99.E9.81.B8.E8. AE .8A.E6.9B.B4 Boost C ++ defines many concepts of "range. The range is like a list, which holds two points in the container. An ordered container is a superset of th

Auto and Decltype differences and linkages in c++11 new features A. Introduction to Auto When programming, it is often necessary to pay the value of an expression to a variable, and it is necessary to know clearly what the variable is when declaring the variable. It's not that easy (especially in templates) to do that, but sometimes it doesn't. To solve this problem, the c++

can save us a lot of time and effort. Set up the output directory and go to the directory: mkdir GCC-BUILD-4.8.2;CD gcc-build-4.8.2; .. /configure–enable-checking=release–enable-languages=c,c++–disable-multilib. –enable-languages says you want your GCC to support those languages, –disable-multilib does not generate a cross-compiler that compiles executable code to other platforms. The compiler generated by –disable-checking does not perform additional checks during compilation, or it can us

pointer type, or it can be implicitly converted to type bool (with a value of false). However, there is no implicit type conversion to shaping. int* P1 = null;int* P2 = nullptr;if (P1 = p2) {cout To re-execute the results:Range-based for loopTo support the "foreach" usage when traversing a container, c++11 extends the syntax for the FOR statement. With this new notation, you can traverse arrays of type C, initialization lists, and any type of begin (

because this place Baidu for a while to understand, another point is if the declaration is an info array, Then it is obvious that the instance object of info is initialized, so the string is also enclosed in curly braces to form an info instance object.Here's the full code:#include The above is initialized directly with a const pointer, and if I already have a two-dimensional array of strings like this: char s[maxn][maxn] = {"1", "2", "3", "4"}, how do you assign a value? It is obvious that the

C ++ 11 new features-Make your program more efficient (right-value reference avoids deep copy) For more information, see in-depth application of C ++ 11 code optimization and engineering-level application. Today, review the right value. Using the right value makes our C ++ program more efficient. We can simply regard the right value as a temporary variable. Previ

Jdk6 features 11: simpler, more powerful JAX-WS History of JAX-WS2.0 --------------------------------------------------------------------------------JAX-WS (JSR-224) is the abbreviation of Java architecture for XML Web Services, simply put, is a framework for developing web services applications with Java and XML, the current version is 2.0, it is a later version of JAX-RPC 1.1, J2EE 1.4 carries a JAX-RPC1

then waiting for validation. Introduce Xctwaiter to specify the expectations of asynchronous behavior in a way that is displayed.//Test Case Waits implicitlyWaitforexpectations (timeout:Ten)//Test case waits explicitlyWait for: [Documentexpectation], timeout:Ten)//Waiter instance delegates to testXctwaiter (Delegate: self). Wait ( for: [Documentexpectation], timeout:Ten)//Waiter class returns resultLet result = xctwaiter.wait ( for: [Documentexpectation], timeout:Ten) ifresult = =. timedout {//

Today stroll cplusplus.com found that C + + is really a lot of easy to use features, first understand some of the most commonly usedInitialize List vectorint> tmp ({1,2,3,4}); Vectorintint> > tmp_pair ( { {12 }, {34} } );or direct initialization, very much like the normal array initialization. vectorint> tmp = {1234}; Vectorintint> > tmp_pair ={ 12 }, {34} };For Iteration

"); M_dialogcancel->retain (); M_dialogcancel->setposition (Point (80,-100)); m_ Dialogcancel->setvisible (False);D ialog->addchild (m_dialogcancel);} Load dialog box void Momoscene::loaddialog (std::string msg,std::functionIt is worth mentioning that all variables beginning with m_ are member variables of the class, and the definitions of these variables are given below, with several variables initialized in the constructor of the class and givenFlag variable public:bool m_isneedexit;//ui vari

inherited by the lower entity set, so the properties of the high-level entity set apply to the lower entity set, but vice versa.iii. constraints of generalizationA) condition-definedIn a low-level entity set defined by a condition, membership is determined based on whether the entity satisfies a particular condition. For example, through the student.student_type=granduate/undergranted to the regional molecular entity is an undergraduate or graduate students.b) User-definedUser-defined low-level

.}11. Use await in catch (await in catch) Await can be used directly in the catch block, and in C # 5 you need to work with it. Await can now is used in the catch clause. C # 5 required a workaround. In C # 5bool hasError = false;string errorMessage = null;try{ //etc.} catch (MyException ex){ hasError = true; errorMessage = ex.Message;} if (hasError){ await new MessageDialog().ShowAsync(errorMessage);}In C # 6try{ //etc

New features in C ++ 11: default and delete specifiers C ++ 11 is about introduced. Today we will introduce two keywords default and delete! DefaultFirst, we know that if we provide constructors of any form, the compiler will not generate a default constructor. This is a universal principle. But everything is dual-sided. Let's take a look at the Code: class A{pub

certainty (the Using keyword of C # will be indented in the case of a nested resource request release, rather than scale), and with On_scope_exit, it is very convenient to apply for releasing resources in C + +.Acquire Resource1on_scope_exit ([] {/* release Resource1 */}) acquire Resource2on_scope_exit ([] {/* release R ESOURCE2 */}) ...The benefit of doing this is not only that the code does not appear needlessly indented, but that the resource request and the freed code are visually adjacent

1. General wording for the For loop:int arr[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9,};for (int i = 0; i The for-Traversal container class is as follows:Std::vector2, C++11 introduced this method is also based on the scope of for (range-based-for), with a range-based for rewriting the above two examples:Std::vectorYou can see that the use of the rewrite after a lot of simple, the readability of the code to improve a grade, but note that the above to the conta

, whose value is set by the function to position of the next character in s TR after the numerical value. This parameter can also was a null pointer, in which case it's not used. The base///third parameter represents the representation of a number in a string, usually binary, decimal (default), 16, and so on. numerical Base (radix) that determines the valid characters and their interpretation. If This is 0, the base used are determined by th