C# compiler allowing unassigned local variable in .NET Standard 2.0 class library





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Consider the following code:



public static void foo(System.Reflection.Emit.ILGenerator il)

{

    System.Reflection.Emit.Label label;

    il.MarkLabel(label);

}


In a .Net framework class library or Console App, the code will cause a compiler error:




Error CS0165 Use of unassigned local variable 'label'




However, when I create a .Net Standard 2.0 class library in Visual Studio 2017, (Add nuget package System.Reflection.Emit.ILGeneration 4.3.0), the above code compiles without any errors. What's going on here?






c# visual-studio-2017 .net-standard .net-standard-2.0







share|improve this question























  • Related issue?

    – Damien_The_Unbeliever
    Jan 3 at 9:42


















0















Consider the following code:



public static void foo(System.Reflection.Emit.ILGenerator il)

{

    System.Reflection.Emit.Label label;

    il.MarkLabel(label);

}


In a .Net framework class library or Console App, the code will cause a compiler error:




Error CS0165 Use of unassigned local variable 'label'




However, when I create a .Net Standard 2.0 class library in Visual Studio 2017, (Add nuget package System.Reflection.Emit.ILGeneration 4.3.0), the above code compiles without any errors. What's going on here?






c# visual-studio-2017 .net-standard .net-standard-2.0







share|improve this question























  • Related issue?

    – Damien_The_Unbeliever
    Jan 3 at 9:42














0












0








0


1






Consider the following code:



public static void foo(System.Reflection.Emit.ILGenerator il)

{

    System.Reflection.Emit.Label label;

    il.MarkLabel(label);

}


In a .Net framework class library or Console App, the code will cause a compiler error:




Error CS0165 Use of unassigned local variable 'label'




However, when I create a .Net Standard 2.0 class library in Visual Studio 2017, (Add nuget package System.Reflection.Emit.ILGeneration 4.3.0), the above code compiles without any errors. What's going on here?






c# visual-studio-2017 .net-standard .net-standard-2.0







share|improve this question














Consider the following code:



public static void foo(System.Reflection.Emit.ILGenerator il)

{

    System.Reflection.Emit.Label label;

    il.MarkLabel(label);

}


In a .Net framework class library or Console App, the code will cause a compiler error:




Error CS0165 Use of unassigned local variable 'label'




However, when I create a .Net Standard 2.0 class library in Visual Studio 2017, (Add nuget package System.Reflection.Emit.ILGeneration 4.3.0), the above code compiles without any errors. What's going on here?






c# visual-studio-2017 .net-standard .net-standard-2.0




c# visual-studio-2017 .net-standard .net-standard-2.0






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 3 at 7:12









Mr AndersonMr Anderson

1,425619




1,425619













  • Related issue?

    – Damien_The_Unbeliever
    Jan 3 at 9:42



















  • Related issue?

    – Damien_The_Unbeliever
    Jan 3 at 9:42

















Related issue?

– Damien_The_Unbeliever
Jan 3 at 9:42





Related issue?

– Damien_The_Unbeliever
Jan 3 at 9:42












0






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