Function - Revision history

Albinopapa at 22:40, 30 August 2016

2016-08-30T22:40:15Z

Chili: /* Function Calls */

2016-08-01T04:35:11Z

‎Function Calls

Chili at 04:30, 1 August 2016

2016-08-01T04:30:06Z

Chili: /* See Also */

2016-08-01T04:10:28Z

‎See Also

Chili: /* See Also */

2016-08-01T04:10:17Z

‎See Also

Chili: /* What's really goin on here tho */

2016-08-01T04:09:57Z

‎What's really goin on here tho

Chili: /* What's really goin on here tho */

2016-08-01T04:09:27Z

‎What's really goin on here tho

Chili at 04:08, 1 August 2016

2016-08-01T04:08:30Z

Chili: Created page with "A function is a grouping of code that you can invoke or 'call' from one or more points in your program. You can even call a function from itself (motherfucking funception)! =..."

2016-08-01T03:59:38Z

Created page with "A function is a grouping of code that you can invoke or 'call' from one or more points in your program. You can even call a function from itself (motherfucking funception)! =..."

New page

A function is a grouping of code that you can invoke or 'call' from one or more points in your program. You can even call a function from itself (motherfucking funception)!

== Function Calls ==
A function call in C++ generally looks something like this <code>obj.MyFunction( param1,param2 )</code>. It consists of the function name (<code>Myfunction</code> in the example above) followed parentheses () which surround parameters separated by commas (,). To call a member function of an object, you first type the object name, then a period '.', and then the function name (e.g. <code>obj.</code>).

The function parameters are used to control the behavior of the function. A function can have zero or more of these. A function can also return a value, which can be used in other operations. If a function does not return a value, its return type is <code>void</code>.

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 == Declaring and Defining Functions ==
-Cumming soon ;)
+Declaring a function is pretty straight forward as described above.  You have the three parts; the return type, the name, the parameter list.  Functions can be declared as global functions or member functions.  Global functions are functions that do not belong to a class or struct, which would be called member functions.  You can declare a global function in the header file (.h) or in the source file (.cpp).
 == What's really goin on here tho ==

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 == What's really goin on here tho ==
 What actually happens when a function is called is: the values to be passed to the function are placed somewhere where the function code can access them (called the stack, or in some calling conventions the parameters are put into CPU registers), then the current execution address is saved and the CPU jumps to the function address and begins executing the function instructions. At the end of the function, the result (if any) is placed in a predetermined location (typically a register), and the CPU jumps back to the address that it had previously saved and continues on its merry way.
 == See Also ==
 http://www.cplusplus.com/doc/tutorial/functions/

← Older revision		Revision as of 04:10, 1 August 2016
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	== See Also ==		== See Also ==
−	[http://www.cplusplus.com/doc/tutorial/functions/]	+	http://www.cplusplus.com/doc/tutorial/functions/

← Older revision		Revision as of 04:10, 1 August 2016
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	== See Also ==		== See Also ==
−	[http://www.cplusplus.com/doc/tutorial/functions//	+	[http://www.cplusplus.com/doc/tutorial/functions/]

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 == What's really goin on here tho ==
-What actually happens when a function is called is: the values to be passed to the function are placed somewhere where the function code can access them (called the stack, or in some calling conventions the parameters are put into CPU registers), then the current execution address is saved and the CPU jumps to the function address and begins executing the function instructions. At the end of the function, the result (if any) is placed in a predetermined location (typically a register), and the CPU jumps back to the address that it had previously saved.
+What actually happens when a function is called is: the values to be passed to the function are placed somewhere where the function code can access them (called the stack, or in some calling conventions the parameters are put into CPU registers), then the current execution address is saved and the CPU jumps to the function address and begins executing the function instructions. At the end of the function, the result (if any) is placed in a predetermined location (typically a register), and the CPU jumps back to the address that it had previously saved and continues on its merry way.
 == See Also ==
 [http://www.cplusplus.com/doc/tutorial/functions//

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 == Function Calls ==
-A function call in C++ generally looks something like this <code>obj.MyFunction( param1,param2 )</code>. It consists of the function name (<code>Myfunction</code> in the example above) followed parentheses () which surround parameters separated by commas (,). To call a member function of an object, you first type the object name, then a period '.', and then the function name (e.g. <code>obj.</code>).
+A function call in C++ generally looks something like this <code>obj.MyFunction( param1,param2 )</code>. It consists of the function name (<code>Myfunction</code> in the example above) followed by parentheses () which surround parameters separated by commas (,). To call a member function of an object, you first type the object name, then a period '.', and then the function name (e.g. <code>obj.</code>).
 The function parameters are used to control the behavior of the function. A function can have zero or more of these. A function can also return a value, which can be used in other operations. If a function does not return a value, its return type is <code>void</code>.

← Older revision		Revision as of 04:08, 1 August 2016
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	The function parameters are used to control the behavior of the function. A function can have zero or more of these. A function can also return a value, which can be used in other operations. If a function does not return a value, its return type is <code>void</code>.		The function parameters are used to control the behavior of the function. A function can have zero or more of these. A function can also return a value, which can be used in other operations. If a function does not return a value, its return type is <code>void</code>.
		+
		+	== Declaring and Defining Functions ==
		+	Cumming soon ;)
		+
		+	== What's really goin on here tho ==
		+	What actually happens when a function is called is: the values to be passed to the function are placed somewhere where the function code can access them (called the stack, or in some calling conventions the parameters are put into CPU registers), then the current execution address saved and the CPU jumps to the function address and begins executing the function instructions. At the end of the function, the result (if any) is placed in a predetermined location (typically a register), and the CPU jumps back to the address that it had previously saved.
		+
		+	== See Also ==
		+	[http://www.cplusplus.com/doc/tutorial/functions//