Use two out parameters : Parameters Passing « Language Basics « C# / C Sharp

Use two out parameters

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use two out parameters. 
 
using System; 
 
class Num { 
  /* Determine if x and v have a common denominator. 
     If so, return least and greatest common denominators in  
     the out parameters. */ 
  public bool isComDenom(int x, int y, 
                         out int least, out int greatest) { 
    int i; 
    int max = x < y ? x : y; 
    bool first = true; 
 
    least = 1; 
    greatest = 1;  
 
    // find least and treatest common denominators 
    for(i=2; i <= max/2 + 1; i++) { 
      if( ((y%i)==0) & ((x%i)==0) ) { 
        if(first) { 
          least = i; 
          first = false; 
        } 
        greatest = i; 
      } 
    } 
 
    if(least != 1) return true; 
    else return false; 
  } 
} 
  
public class DemoOut { 
  public static void Main() {   
    Num ob = new Num(); 
    int lcd, gcd; 
 
    if(ob.isComDenom(231, 105, out lcd, out gcd)) { 
      Console.WriteLine("Lcd of 231 and 105 is " + lcd); 
      Console.WriteLine("Gcd of 231 and 105 is " + gcd); 
    } 
    else 
      Console.WriteLine("No common denominator for 35 and 49."); 
 
    if(ob.isComDenom(35, 51, out lcd, out gcd)) { 
      Console.WriteLine("Lcd of 35 and 51 " + lcd); 
      Console.WriteLine("Gcd of 35 and 51 is " + gcd); 
    } 
    else 
      Console.WriteLine("No common denominator for 35 and 51."); 
 
  } 
}

1.	Parameter out and reference
2.	Passing Parameters By Value and By Ref
3.	Objects can be passed to methods
4.	Simple types are passed by value
5.	Objects are passed by reference
6.	Use ref to pass a value type by reference
7.	Swap two values
8.	Use out
9.	Swap two references
10.	Demonstrate params
11.	Use regular parameter with a params parameter
12.	Parameter demo
13.	Passing parameters by reference
14.	Passing parameters by value
15.	Illustrates the use of out parameters
16.	Pass value by reference
17.	Pass value by reference with read only value
18.	Ref and Out Parameters: compiling error
19.	C# Ref and Out Parameters
20.	Ref and Out Parameters 2

Use two out parameters : Parameters Passing « Language Basics « C# / C Sharp

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