Reuse define statement from .h file in C# code

Question

I have C++ project (VS2005) which includes header file with version number in #define directive. Now I need to include exactly the same number in twin C# project. What is th

Answer 1

Building on gbjbaanb's solution, I created a .tt file that finds all .h files in a specific directory and rolls them into a .cs file with multiple classes.

Differences

• I added support for doubles
• Switched from try-catch to TryParse
• Reads multiple .h files
• Uses 'readonly' instead of 'const'
• Trims #define lines that end in ;
• Namespace is set based on .tt location in project

---

<#@ template language="C#" hostspecific="True" debug="True" #>
<#@ output extension="cs" #>
<#@ assembly name="System.Core.dll" #>
<#@ import namespace="System" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ import namespace="System.IO" #>
<#
string hPath = Host.ResolveAssemblyReference("$(ProjectDir)") + "ProgramData\\DeltaTau\\";  
string[] hFiles = System.IO.Directory.GetFiles(hPath, "*.h", System.IO.SearchOption.AllDirectories);
var namespaceName = System.Runtime.Remoting.Messaging.CallContext.LogicalGetData("NamespaceHint");
#>
//------------------------------------------------------------------------------
//     This code was generated by template for T4
//     Generated at <#=DateTime.Now#>
//------------------------------------------------------------------------------

namespace <#=namespaceName#>
{
<#foreach (string input_file in hFiles)
{
StreamReader defines = new StreamReader(input_file);
#>
    public class <#=System.IO.Path.GetFileNameWithoutExtension(input_file)#>
    {
<#    // constants definitions

    while (defines.Peek() >= 0)
    {
        string def = defines.ReadLine();
        string[] parts;
        if (def.Length > 3 && def.StartsWith("#define"))
        {
            def = def.TrimEnd(';');
            parts = def.Split(null as char[], StringSplitOptions.RemoveEmptyEntries);
            Int32 intVal;
            double dblVal;
            if (Int32.TryParse(parts[2], out intVal))
            {
            #>
        public static readonly int <#=parts[1]#> = <#=parts[2]#>;           
<#
            }
            else if (Double.TryParse(parts[2], out dblVal))
            {
            #>
        public static readonly double <#=parts[1]#> = <#=parts[2]#>;            
<#
            }
            else
            {
            #>
        public static readonly string <#=parts[1]#> = "<#=parts[2]#>";
<#          
            }
        }
    } #>
    }
<#}#>     
}