Border Fox

The code below should take a user entered floating point number and use functions SEPARATE (to break the number up into its individual parts) and PRINTOUT ( to display the individual parts ).
despite my best efforts i seem to be up against a brick wall due to my inexperience.

according to my compiler there are errors on:

num.cpp: In function `int main()':
num.cpp:29: error: syntax error before `(' token
num.cpp: In function `void separate(number)':
num.cpp:37: error: syntax error before `;' token
num.cpp:41: error: non-lvalue in assignment
num.cpp:42: error: non-lvalue in assignment

can anyone help me and sort out these errors? better still, could anyone find a better way of solving the above task because i dont think mine is ever guna work!
I think i needa use FLOOR & FABS in the separate funciton but i dont know how to.


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1 #include <iostream>
2
3 using std::cout;
4 using std::cin;
5 using std::endl;
6
7 #include <cmath>
8
9 struct number {
10 double initial;
11 char sign;
12 int mag;
13 double fract;
14 };
15
16 void separate ( struct number );
17
18 void printOut ( struct number );
19
20 int main ()
21 {
22 number value;
23
24 cout << "Input a real number (one with decimal point): " << endl;
25 cin >> value.initial;
26
27 separate ( value )
28
29 printOut ( value )
30
31 return 0;
32 }
33
34 void separate ( struct number value )
35 {
36 if ( value.initial > 0 )
37 value.sign = +;
38 else
39 value.sign = -;
40
41 floor ( value.initial ) = value.mag;
42 value.initial - value.mag = value.fract;
43
44 }
45
46 void printOut ( struct number value )
47 {
48 cout << "Number to be analysed: " << value.initial << endl;
49 cout << "Sign: " << value.sign << endl;
50 cout << "Whole number: " << value.mag << endl;
51 cout << "Fractional part: " << value.fract << endl;
52 }

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