scott meyers c

Appendix B. Item ing between the second and third editions By Scott Meyers Translator: fatalerror99 (itepub's nirvana) Release: http://blog.csdn.net/fatalerror99/ Valid C ++The third version is different from the second version in many ways. The most striking thing is that it contains a lot of new information. However, most of the content in the second version is retained in the third version, although it often changes the form and position. In the ta

Item 18: Making interfaces (Interface) Easy to use correctly and difficult to use incorrectly By Scott Meyers Translator: fatalerror99 (itepub's nirvana) Release: http://blog.csdn.net/fatalerror99/ C ++ is drowned in interfaces (interface. Function interfaces, class interfaces, and template interfaces ). Every interface is a way for customers to interact with your code. If you are dealing with reasonable people, those customers also want to do a good

Other technical links Msdn http://msdn.microsoft.com. Att Labs Research-software tools http://www.research.att.com/sw/tools/ Various file format http://www.wotsit.org Dot space http://www.dotspace.idv.tw Wxwindows (the open source, cross-platform native UI framework)Http://www.wxWindows.org 　Chinese mainland technical website China Software csdn http://www.csdn.net(User/coder/Programmer/Engineer/DeveloperLarge portal website) UML planter http://www.umlchina.comPersonal Homepage Kai-fu

way to Xiamen, finally, change the mobile phone number ...... This is the power of knowledge! : B The same is true for compilers! Think of Scott Meyers, one of the world's top C ++ development authorities) compared with a compiler that has read these two books, compiler C ++ and more powerful C ++. This is all nonsense. Open code: blocks (using the Chinese Language Pack Interface), choose "Settings"> "compiler and Debugger" from the main menu, and

in this project. It is hard to imagine that even better people can work together, and their enthusiasm and collaboration have completely achieved the goal I expected. In addition, many experts who have reviewed this book are worthy of thanks and praise. They put forward profound insights and sharp criticism on many of the contents of this book without reservation, and these insights and criticisms are so insightful. It is precisely because of their efforts that the book in your hand is more com

, which consists of a 2D coordinate of a point and a member. Now we want to define a 3D coordinate p3d, which can be implemented as follows: void main () { Point P (1, 2); // first define a 2D coordinate point3d p3d (p, 3); p3d. Print (); } From the point3d implementation body, we can see that we assign values to m_p, which not only calls copy constructor to generate temporary objects, but also assigns values to m_p. If you use the member initialization list, we can do this: void main () { Point

appendFormat:@"?%@=%@",key,escapedString]; [escapedString release]; }else{ escapedString =(NSString*)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)[parameters valueForKey:key], NULL, CFSTR(":/?#[]@!$’()*+,;="), kCFStringEncodingUTF8); [urlString appendFormat:@"%@=%@",key,escapedString]; [escapedString release]; } keyIndex++; } return [NSURL URLWithString:urlString]; }@end

needs to be prefixed with an if (keyIndex = 0) {escapedString = (NSString *) values (kCFAllocatorDefault, (CFStringRef) [parameters valueForKey: key], NULL, CFSTR (":/? # [] @! $ '() * +,; = "), KCFStringEncodingUTF8); [urlString appendFormat :@"? % = % @ ", Key, escapedString]; [escapedString release];} else {escapedString = (NSString *) values (kCFAllocatorDefault, (CFStringRef) [parameters valueForKey: key], NULL, CFSTR (":/? # [] @! $ '() * +,; = "), KCFStringEncodingUTF8); [urlString ap

: C Primer Plus, C programming language, C programming language: modern methods, C traps and defects, kenig, brilliant programming, Steve Maguire, The C programming language C ++ (recommendation blog): Problem Solving with C ++ Phase 1 C ++ Primer This book provides a comprehensive and authoritative explanation of the basic concepts, technologies, and modern C ++ programming styles of C ++. It is the best guide for beginners of C ++; this book helps you write practical programs without having to

simple Forward Declaration (Forward Declaration) can be used.. //A.hClassX;ClassY;ClassZ;ClassA {Public: X getx (); y Gety (); Z Getz ();..Private: X*God; y*Damn; Z*It ;}; In this way, when X, Y, or Z changes, the caller (main. cpp) of A does not need to re-compile, which can effectively prevent cascading dependencies. In the previous method, if X is changed, all source files containing a. h need to be re-compiled. Note: When declaring a function, you do not need to define the corresponding

from one implementation system to another (for example, changing from bbwindow to lswindow, A one-time loading method is required to implement various object creation methods in the system, so the abstract factory will play a role: Create a factory object Load a specific factory class object into an abstract factory class Object (reference, pointer) Create an abstract block class with an abstract factory class Object Uses the abstract method to construct the block class. It is d

pixel-based method to a region-based method that fuses the neighbor information. In addition, the combined use of low-level segmentation and advanced tracking information will greatly improve our work results. 6. Thank you I would like to thank Dr. Chen Xilin and Dr. Shi Guang for their helpful discussions with the author. Funding for the study is sponsored by the China Natural Science Foundation, the training program of the Chinese Emy of Sciences for hundreds of talents, and Shanghai yinc

;} Execution result: The object pointer is declared and new, which indicates allocating a memory space to the object pointer. Of course, this will call the constructor. This is strange, why didn't I automatically call the Destructor? It means that C ++ lacks this mechanism internally and C ++ politely says to you: "You remind me to allocate space for an object, you have to remind me to release it (delete ). So there are: int main(){myclass * mc;mc = new myclass();delete mc;return 0;} Execution

be sure that you have read all the places (ah, ah, ah !!!). When you see the C ++I = J * 5You have to be blessed, brother. This reduces the ability of the program code to identify problems. Of course, theoretically, this should be okay. When you do some reloadOperator *When it comes to smart things, you only need to provide a beautiful and secure abstraction. Oh, my God, actuallyJIt is a unicode string type. A Unicode string is multiplied by an integer.ApparentlyIs it a good abstract practice t

;class Z;class A{public: X getX(); Y getY(); Z getZ(); ..private: X* god; Y* damn; Z* it;}; In this way, when X, Y, or Z changes, the caller (main. cpp) of A does not need to re-compile, which can effectively prevent cascading dependencies. In the previous method, if X is changed, all source files containing a. h need to be re-compiled. Note: When declaring a function, you do not need to define the corresponding class even if the parameter or return value of the function has been copied. (

seen most of the explanations about the decorative pattern in terms of the application appearance, so there is an "Object chain ", this implementation is to concatenate the specific decoration objects concretedecorator, and they all act on the specific objects of concretecomponent at the same time. However, there is another application that can "Parallel" the specific decoration objects such as concretedecorator. The specific decoration is called only when a function is required to act on the s

Meyers introduced a useful technique to solve this problem in article 2nd of Objective C ++. It is recommended that you isolate the class interface from the class implementation and include a pointer in the class declaration to point the pointer to the class implementation, but it cannot contain any other implementation details. // Hides the class implementation details. Class employee {public :... employee (...)); fullname getname () const; address

equivalence detection, but it takes much more to call interval _range than to call lower_bound .) It is easy to choose from Count, find, binary_search, lower_bound, upper_bound, and pai_range. When you call it, selecting an algorithm or a member function can give you the behavior and performance you need, and it is the least effort. Follow this advice (or refer to the table) and you will not be confused. [1] Scott Meyers, valid tive STL: 50 specific

the same time, if you are studying C ++ (currently, C ++ is still the most widely used programming language in China), it is certainly not enough to look at your teaching materials, in addition toIn addition to C ++ programming language and other books (it is enough to pick a book), we should also look at Scott Meyers, author of Objective C ++. Next, I suggest you do not study MFC. It is outdated and really not very useful. I think about the situatio

programming language, C programming language: modern methods, C traps and defects, kenig, brilliant programming, Steve Maguire, the C Programming Language C ++ (recommendation blog): Problem Solving with C ++ Phase 1 C ++ Primer This book provides a comprehensive and authoritative explanation of the basic concepts, technologies, and modern c ++ programming styles of C ++. It is the best guide for beginners of C ++; this book helps you write practical programs without having to master the detail