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C and C++ / Functions and Classes Tutorial for understanding the C++ functions. It shows you two functions that return the same result but are coded differently. Site: www.geekpedia.com
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C and C++ / Functions and Classes A function is an assignment or a task that must be performed to complement the other part of a program. There are two kinds of functions: those supplied to you and those you will be writing. The functions that are supplied to you are usually in three categories: those built-in the operating system, those written in C++ and those supplied with your programming environment. The use of these functions is the same regardless of the means you get them; you should know what a function looks like, how to create one, what functions are already available, where they are located, and what a particular function does, how and when to use it. Site: www.functionx.com
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C and C++ / Functions and Classes Before getting into this section, it is recommended that you have a proper understanding of pointers and class inheritance. Site: www.cplusplus.com
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C and C++ / Functions and Classes Until now, in all the functions we have seen, the arguments passed to the functions have been passed by value. This means that when calling a function with parameters, what we have passed to the function were copies of their values but never the variables themselves. Site: www.cplusplus.com
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C and C++ / Functions and Classes Functions are bits of code that the program jumps to in order to do certain tasks. The main function holds the main code (the code that is executed first) and where the other functions are called from. Variables can be passed into and returned from a function. Site: www.olate.co.uk
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C and C++ / Grapics The simple fact that OpenGL is only a graphics API means that any user interaction, or things like screen and window issues needs to be handled by the operating system. Most operating systems come with a set of extensions that tie OpenGL together with user interaction and window management. This tends to make our lives a little bit easier, but only if we know how to take advantage of this option. In Windows this set of functions are called the wiggle functions. Each of these functions is prefixed with wgl. Site: www.cprogramming.com
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C and C++ / Functions and Classes Using functions we can structure our programs in a more modular way, accessing all the potential that structured programming can offer to us in C++. Site: www.cplusplus.com
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C and C++ / Functions and Classes In general, functions are blocks of code that perform a number of pre-defined commands to accomplish something productive. Site: www.cprogramming.com
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C and C++ / Functions and Classes Inline functions are not very important, but it is good to understand them. The basic idea is to save time at a cost in space. Inline functions are a lot like a placeholder. Once you define an inline function, using the 'inline' keyword, whenever you call that function the compiler will replace the function call with the actual code from the function. Site: www.cprogramming.com
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C and C++ / Functions and Classes Learn: Reviewing Functions, Declaring a Pointer to Function, Using a Pointer to Function, A Pointer to a Function as Argument, Passing a Function as Argument, An Array of (Pointers to) Functions, Using an Array of Functions and more. Site: www.functionx.com
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C and C++ / Functions and Classes In an inheritance scenario, a parent class is configured to provide its child with the basic foundation the child needs. Although a child can implement a new behavior not available on the parent object, sometimes a child object will need a customized implementation of a behavior that has already been configured with its parent. That is what happens for example when inheriting a sphere from a circle class. Both have a characteristic called Area but the area is calculated differently on each shape. Site: www.functionx.com
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C and C++ / Pointers and References Pointers to Member Functions are one of C++'s more rarely used features, and are often not well understood even by experienced developers. This is understandable, as their syntax is necessarily rather clumsy and obscure. While they do not have wide applicability, sometimes member function pointers are useful to solve certain problems, and when they do apply they are often the perfect choice, both for improved performance and to make the code sensible. Site: www.codebeach.com
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C and C++ / Pointers and References Learn: Relating a Pointer to an Array, A Pointer as Argument, Passing Pointers as Arguments, Passing Reference Pointers to Functions, Pointers and Multi-Dimensional Arrays, Dynamic Arrays Dynamic Multi-Dimensional Arrays, Pointers and Arrays With Functions, Single Dimensional Arrays and Functions and more. Site: www.functionx.com
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C and C++ / Functions and Classes Explains the need of inline functions, when to / not to use them and how to use them. Site: www.geekpedia.com
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C and C++ / Functions and Classes Learn the following: Declaring and Initializing an Array of Characters, Streaming an Array of Characters, Multidimensional Arrays of Characters, Declaring a Pointer to Characters, Declaring and Initializing an Array of Characters, Requesting an Array of Characters, Arrays of Characters and Pointers, Dynamic Arrays of Characters, Passing an Array of Characters, Returning an array of Characters, Multidimensional Arrays of Characters, Double-Dimensional Arrays Declaration, Two-Dimensional Arrays of Characters and Functions, Introduction to Strings, Defining a String, String Manipulation Functions, Copying One String Into Another, Comparing Strings Functions, Working With Individual Characters, Working With Sub-Strings, Working With Character Cases, Formatting Strings. Site: www.functionx.com
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