Visual C++ Help!!

This is a discussion on Visual C++ Help!! within the C++ Programming forums, part of the General Programming Boards category; For some reason everytime I try to compile a program that has a function in it, I get the following ...

  1. #1
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    Visual C++ Help!!

    For some reason everytime I try to compile a program that has a function in it, I get the following error:

    "error C2601: 'larger' : local function definitions are illegal
    Error executing cl.exe."

    In that particular case the function was named larger. Does anyone know what I might be doing wrong? I've followed code from my text books, and also tried to create my own functions to no avail.

  2. #2
    twm
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    Can you post some code? The error looks like you're trying to nest functions (which is illegal in C/C++).
    The information given in this message is known to work on FreeBSD 4.8 STABLE.
    *The above statement is false if I was too lazy to test it.*
    Please take note that I am not a technical writer, nor do I care to become one.
    If someone finds a mistake, gleaming error or typo, do me a favor...bite me.
    Don't assume that I'm ever entirely serious or entirely joking.

  3. #3
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    Here's a very simple function that I tried.

    Code:
    	double larger(double x, double y)
    		{
    			if (x >= y)
    				return x;
    			else 
    				return y;		
    
    		}

  4. #4
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    hey sorry im anewb but maybe

    maybe you need to prototype it maybe? sorry if im wrong but im just guessing but im a newb. Something this?

    Code:
    double larger(double x, double y);
    
    double larger(double x, double y)
    	{
    		if (x >= y)
    			return x;
    		else 
    			return y;		
    	}

    Like i said i know barely nothing so maybe someone else might know something better. good luck

  5. #5
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    Here's my entire program:

    Code:
    #include<iostream>
    using namespace std;
    
    double larger(double, double);
    
    void main()
    {
    	double one, two;
    	
    	cout<<"Enter two numbers: ";
    	cin>>one>>two;
    	cout<<endl;
    
    	cout<<"Ther larger number is:  "<<larger(one, two);
    
    	
    	
    	
    	
    	//Function Definition
    	double larger(double x, double y)
    		{
    			if (x >= y)
    				return x;
    			else 
    				return y;		
    
    		}
    
    }
    As you can see the prototype is before the main function.

  6. #6
    twm
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    What did I tell you before? Functions inside functions are illegal.
    The information given in this message is known to work on FreeBSD 4.8 STABLE.
    *The above statement is false if I was too lazy to test it.*
    Please take note that I am not a technical writer, nor do I care to become one.
    If someone finds a mistake, gleaming error or typo, do me a favor...bite me.
    Don't assume that I'm ever entirely serious or entirely joking.

  7. #7
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    In case you don't understand twm, main is a function. Therefore you need to cut your function definition and paste it after the close brace of main.

  8. #8
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    Thanks a lot twm! I wasn't thinking straight. I didn't see main as a function. That helps a whole bunch.

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