C++ Quick Syntax Reference
Mikael Olsson
Language: English
Pages: 124
ISBN: 143026277X
Format: PDF / Kindle (mobi) / ePub
The C++ Quick Syntax Reference is a condensed code and syntax reference to the C++ programming language. It presents the essential C++ syntax in a well-organized format that can be used as a handy reference.
You won’t find any technical jargon, bloated samples, drawn out history lessons, or witty stories in this book. What you will find is a language reference that is concise, to the point and highly accessible. The book is packed with useful information and is a must-have for any C++ programmer.
In the C++ Quick Syntax Reference, you will find:
- A concise reference to the C++ language syntax.
- Short, simple, and focused code examples.
- A well laid out table of contents and a comprehensive index allowing easy review.
method is not part of any instance it cannot use instance members. Methods should therefore only be declared static if they perform a generic function that is independent of any instance variables. Instance methods on the other hand, in contrast to static methods, can use both static and instance members. class MyCircle { public: double r; // instance variable (one per object) static double pi; // static variable (only one copy) double getArea() { return pi * r * r; } static
qualified namespace is assigned. namespace myAlias = furniture::wood; // namespace alias This alias can then be used instead of the namespace qualifier that it represents. myAlias::Table fTable; Note that both the namespace member imports and the namespace aliases may be declared both globally and locally. Type alias Aliases can also be created for types. A type alias is defined using the typedef keyword followed by the type and the alias. typedef my::name::MyClass MyType; The alias
preprocessor directives that are included in the source files. The directives are easily distinguished from normal programming code in that they all start with a hash sign (#). They must always appear as the first non-whitespace character on a line. Below is a table of the preprocessor directives available in C++ and their function.Directive Description #include File include #define Macro definition #undef Macro undefine #ifdef If macro defined #ifndef If macro not defined #if If
click the Add button. An empty cpp file will now be added to your project and also opened for you. Hello world The first thing to add to the source file is the main function. This is the entry point of the program, and the code inside of the curly brackets is what will be executed when the program runs. The brackets, along with their content, is referred to as a code block, or just a block. int main() {} The first application will simply output the text “Hello World” to the screen. Before
World will close as soon as the main function is finished. To prevent this you can add a call to the cin ::get function at the end of main. This function, belonging to the console input stream, will read input from the keyboard until the return key is pressed. #include