Download An Introduction to Design Patterns in C++ with Qt 4 (Bruce by Alan Ezust, Paul Ezust PDF

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By Alan Ezust, Paul Ezust

Study C++, styles, and Qt four Cross-Platform DevelopmentMaster C++ and layout styles jointly, utilizing the world's major open resource framework for cross-platform improvement: Qt four. An creation to layout styles in C++ with Qt four is an entire educational and reference that assumes no earlier wisdom of C, C++, items, or styles. you will stroll via each center proposal, one step at a time, studying via an intensive choice of Qt 4.1-tested examples and workouts. by the point you are performed, you will be growing multithreaded GUI purposes that entry databases and manage XML files--applications that run on structures together with home windows, Linux, Unix, and Mac OS X. better of all, you may be writing code that is effective, reusable, and stylish. research gadgets speedy: sessions, inheritance, polymorphism, and extra grasp robust layout styles observe effective high-level programming ideas utilizing libraries, generics, and packing containers construct graphical functions utilizing Qt widgets, versions, and perspectives examine complex ideas starting from multithreading to reflective programming Use Qt's integrated sessions for having access to MySQL information features a entire C++ language reference

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Extra info for An Introduction to Design Patterns in C++ with Qt 4 (Bruce Perens Open Source)

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Qxd 8/4/06 9:36 AM Page 16 CHAPTER 1: C++ INTRODUCTION 16 Iteration We used two of the three iteration structures provided by C++ in our example. 3. 3, the directive #include allowed us to make use of the predefined global input and output stream objects. They are 1. cin—standard input, the keyboard by default 2. cout—standard output, the console screen by default 3. 3, we made use of the global stream object (of the class ostream), called cout. We called one of its member functions, whose name is operator<<().

Cout << "z / j = " << z / j << endl ; C++ also provides a full set of boolean operators to compare numeric expressions. Each of these operators returns a bool value of either false or true. ) operator. 2. E X A M P L E 1 . cpp [ . . ] /* if() ... else approach */ if(x * j <= z) cout << x * j << " <= " << z << endl ; else cout << x * j << " > " << z << endl; /* conditional operator approach */ cout << x * k <<( (x * k < y * j) ? 12 makes use of the conditional-expression. The expression (boolExpr) ?

34 Pointers and Memory Access . . . . . 36 const* and *const . . . . . . . . . . 40 Reference Variables . . . . . . . . . ” It enhances C by adding several higher-level features such as strong typing, data abstraction, references, operator and function overloading, and considerable support for objectoriented programming. C++ retains the key features that have made C such a popular and successful language: speed, efficiency, and a wide range of expressiveness that allows programming at many levels, from the lowest (such as direct operating system calls or bitwise operations) to the highest level (manipulating large complex objects or graphs of objects).

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