Question

I would like to have a function that modifies some variable list of parameters but they are all value types (int, string). There is a way to make the params keyword work with ref keyword or something close to that?

public void funcParams(params object[] list) {    /* Make something here to change 'a', 'b' and 'c' */ }  public void testParams() {     int a = 1, b = 2, c = 3;      funcParams(a, b, c); } 

The problem is, I’m trying to make my life easier making a method that modifies the object fields. I’m doing some dynamic code generation using Cecil and I’m trying to avoid writing too much IL generated code.

To simplify I would like to pass the list of fields by reference I need to change to a function that changes them instead of changing them by generating the respective IL. Some of the parameters are nullable and make the code generation a little more painful. Making some overload methods instead of params won’t be much useful in this case.

Answer 1

Yes. It is possible.

However, the resulting code is ‘unsafe’ which makes it unverifiable.

That may or may not be an issue depending on your requirements.

In any case, here is the code:

using System;  namespace unsafeTest {     class MainClass     {         public static void Main(string[] args)         {             Console.WriteLine('Hello World!');             unsafe              {                        int x = 0;                 int y = 0;                 int z = 0;                 bar(&x, &y, &z);                 Console.WriteLine(x);                 Console.WriteLine(y);                 Console.WriteLine(z);             }         }          unsafe static void bar(params int *[] pInts)         {             int i = 0;             foreach (var pInt in pInts)             {                 *pInt = i++;             }         }     } }