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iOS Objective-C Basics (Retired) Functional Programming in C Functions

I can't resolve this code, can someone help me?

I have troubles to understand the functions in objective C, so can any body help me with this challenge? This is the challenge: Implement a function named "addTwo" that returns the sum of two floats. The function will accept two float numbers as arguments. It should add the two arguments together, and return the result. (No need to write the main function. Just write out the implementation for the addTwo function.)

1 Answer

Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

Hi Ljiljana,

The function in your challenge should look like this.

float addTwo( float x, float y) {
    return x + y;

There are two decision points when it comes to functions:

Will the function return anything? - If the function will return something you will need to specify the type of data that it will be returned. In this case a float number. You specify this by writing the type of data in front of the function name. float addTwo.

Will the function receive anything? - The data that the function receives is(are) called parameter(s). These parameters are also of certain types ( int, float... ) and they are specified after the function name inside parentheses.