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Functions terms
I'm little confuse about these three terms:
1.interface to functions
2. function declarations
3. implementation of the functions
An example with comments pointing to these terms will be very helpful. Thanks in advance
1.interface to functions
2. function declarations
3. implementation of the functions
An example with comments pointing to these terms will be very helpful. Thanks in advance
http://www.cplusplus.com/doc/tutorial/functions/
2. I declare that there is a function with name "foo" that takes one int parameter and returns a float. Now I can write code that uses foo.
3. This is what the foo actually does.
1. A class has interface. Functions don't.
2. I declare that there is a function with name "foo" that takes one int parameter and returns a float. Now I can write code that uses foo.
3. This is what the foo actually does.
1. A class has interface. Functions don't.
I'm sorry, I'm still confuse about that. More explanation please or an example will be helpful!
1. As @keskiverto said, no such thing. You could say that the parameters its takes sort of behaves as one, though.
2. Declaring:
3. Implementing:
2. Declaring:
float foo(int a);3. Implementing:
float foo(int a) { return a * 1.5f; }
Last edited on
The link I gave has a section titled "declaring functions". Was that part of the explanation too short? (It has example code too.)
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