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  1.     class Program
  2.     {
  3.         static void Main(string[] args)
  4.         {
  5.             double doub = 15.7;
  6.             Foo a = doub; //error
  7.         }
  8.     }
  9.  
  10.     struct Foo
  11.     {
  12.         public int value;
  13.         public static implicit operator Foo(int val)
  14.         {
  15.             return new Foo { value = val };
  16.         }
  17.     }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cs(6,21): error CS0266: Cannot implicitly convert type `double' to `Foo'. An explicit conversion exists (are you missing a cast?)
Compilation failed: 1 error(s), 0 warnings
stdout
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Standard output is empty
https://ideone.com/ttBLLX
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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