Editing Entry point (section)

===C#===
When executing a program written in [[C Sharp (programming language)|C#]], the [[Common Language Runtime|CLR]] searches for a static method marked with the <code>.entrypoint</code> IL directive, which takes either no arguments, or a single argument of type <code>string[]</code>, and has a return type of <code>void</code> or <code>int</code>, and executes it.<ref>{{cite web |url=http://msdn.microsoft.com/msdnmag/issues/04/02/NETConsoleApps/ |title=Console Applications in .NET, or Teaching a New Dog Old Tricks |publisher=Msdn.microsoft.com |date=2003-06-12 |access-date=2013-08-19 |archive-url=https://web.archive.org/web/20080204223443/http://msdn.microsoft.com/msdnmag/issues/04/02/NETConsoleApps/ |archive-date=2008-02-04 |url-status=dead }}</ref>

<syntaxhighlight lang="csharp">
static void Main();
static void Main(string[] args);
static int Main();
static int Main(string[] args);
</syntaxhighlight>

Command-line arguments are passed in <code>args</code>, similar to how it is done in Java. For versions of <code>Main()</code> returning an integer, similar to both C and C++, it is passed back to the environment as the exit status of the process.

Since C#7.1 there are four more possible [[function signature|signatures]] of the entry point, which allow asynchronous execution in the <code>Main()</code> Method.<ref>{{cite web|url=https://github.com/dotnet/csharplang/blob/master/proposals/csharp-7.1/async-main.md|title=The official repo for the design of the C# programming language: Dotnet/Csharplang|website=[[GitHub]] |date=2019-08-26}}</ref>

<syntaxhighlight lang="csharp">
static async Task Main()
static async Task<int> Main()
static async Task Main(string[])
static async Task<int> Main(string[])
</syntaxhighlight>

The <code>Task</code> and <code>Task&lt;int&gt;</code> types are the asynchronous equivalents of <code>void</code> and <code>int</code>. <code>async</code> is required to allow the use of asynchrony (the <code>await</code> keyword) inside the method.