Begining Programmer: Need help with understanding functions

[delliott080]

Anyone have any suggestions on a good online tutorial or video that explains functions. I am taking an online course in C programing and the chapter of functions confused me. I understand that functions are very important to programming. I know there are a ton of resources out there so I am asking for anyones input on what some of the better ones are. Thank you all in advance.

[anduril462]

You can start here: Functions in C - Cprogramming.com.

c function tutorial - Google Search turned up dozens or hundreds more. At a quick glance, the first 5 or so links look decent for intro level stuff.

[delliott080]

Thank you I will try it out.

[quzah]

A function is a tool, given a name, that executes its section of code. Functions need a return type, a name, an argument list, and the body (the lines that do the actual task):

returntype functionname( arguments )
{
    /* function body */
}

Functions are used (called) by using their name with their arguments:

foo();

Here the function foo is used, with no arguments. Its return value is being ignored, possibly because it doesn't return anything:

void foo( void )
{
    printf( "hello world\n" );
}

Quzah.