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.NET Forum / Languages / C# / September 2007strange compilation warning
The following code: enum Foo { one, two }; int Bar(Foo foo) { switch (foo) { case Foo.one: return 7; case Foo.two: return 4; } } gives a compilation warning "not all paths return a value" surely this is spurious though? - there is no path I can see that does not return a value Andy > there is no path I can see that does not return a value How about: Foo foo = (Foo) 17; // this works just fine Bar(foo); //boom Best option: add a default: throw new ArgumentException(); line... Marc >> there is no path I can see that does not return a value > How about: [quoted text clipped - 6 lines] > > Marc Ooh - I didn't know you could cast an int to an enum even if it was out of range Thanks Marc >>> there is no path I can see that does not return a value >> How about: [quoted text clipped - 7 lines] > Ooh - I didn't know you could cast an int to an enum even if it was out of > range C# enum is almost just an int. If I were to guess at why, then I would say that it is necesarry to support using multiple values in one variable (flags). Arne Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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