C++ Tutorial Java 1.5 Based Download full book in PDF By ( Peter A. Buhr )
C++ is a modern programming language that is used extensively in the C++ implementation of the popular Rust programming language. A C++ programmer can use C++ in combination with Rust to write highly efficient and memory-efficient code. C++ is a modern programming language that is used heavily in software development because of its constancy, safety, and expressiveness. C++ has many similarities with C, including standard library, function templates, and other aspects of the C family of languages. In addition, C++ has some important unique features, such as: compile-time safety, compile-time diagnostics, memory safety, and user-defined functions.
The C++ Tutorial begins with an overview of C++ and the advantages of using it over C. The next section, Using const qualified and most keywords, teaches you how to use C++ to define const member functions and operators. The next section covers using the const keyword to define a variable and assignment operators. Subsequent chapters cover using function templates and function expressions to create complex program elements. The final chapter focuses on using pointer arithmetic, pointers, and memory management.
One of the best ways to understand how C++ works is to use an example. In this C++ Tutorial, you will follow an example of a simple C++ program to show how simple the language is. To begin, download and save the C++ example file that you will use as your C++ example file. You can also use the example files of the Visual C++ and Linux C++ programs.
In C++ example file, begin by writing a class and a template. Next, write a main function and put in the necessary template arguments. Finally, write the program using the const keyword, as in the const int main (int argc, char const *argv); in C++. A const keyword enables the compiler to optimize your program when it runs the C++ example. Compiler optimizers can sometimes eliminate unused variables or functions.
A const member function is a function whose definition does not include any reference to any other functions or variables. const member is used to indicate whether the function will be static or dynamic. A const member is written as const static const char const* instead of const char*const char const* in C++. A const member function has no effect on the visibility of any other variables or functions. It does not prevent you from using any other const functions or keywords in the program, as they are written const char* instead of const char* in C++.
Now let’s move on to the C++ example. Write a class and a template for the class. Add a main function for the program. Add a const member function for the main function. Since the template is only used as a place holder for an object, the const member is not visible to other uses of the program. This will prevent you from accidentally redefining a const member and having your program to do something completely different.
Now compile and run the program. You should see the following message: const char* x = [email protected] The compiler found a constant expression for the value of the pointer, which can be read by x. So the code does not require a memory save when using const member. The use of const statements allow you to avoid some memory allocation errors, which is a part of the C++ memory model. Also note that if you accidentally redefine a const member, the behavior will be undefined, and the program may crash. However, this example illustrates the advantage of using const member instead of assuming that a const will always result in the desired behavior.