By Ian Griffiths
With this electronic Early free up variation of Programming C# 5.0, you get the whole e-book package in its earliest shape - the author's uncooked and unedited content material - so that you can benefit from this content material lengthy ahead of the book's legitimate liberate. you will additionally obtain updates while major alterations are made, in addition to the ultimate book model. With its help for dynamic programming, C# 5.0 keeps to conform as a flexible language by itself. but if C# is used with .NET Framework 4.5, the mix is very robust. This bestselling educational indicates you the way to construct net, computing device, Metro and wealthy web purposes utilizing C# 5.0 with .NET's database services, UI framework (WPF), wide verbal exchange providers (WCF), and extra.
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Additional resources for Programming C# 5.0: Building Windows 8 Metro, Web, and Desktop Applications for the .NET 4.5 Framework
Example 2-19 shows some valid examples. Sqrt function is a pure function, in the sense that it does nothing other than returning a value based entirely on its inputs. So invoking it and then doing nothing with the result doesn’t really do anything at all—it’s no more of an action than the expression 2 + 2. But as far as the C# compiler is concerned, any method call is allowed as an expression statement. Example 2-19. Sqrt. Both attempt to perform a calculation and then discard the result? Wouldn’t it be more consistent if C# only allowed calls to methods that return nothing to be used for expression statements?
NET strings are immutable.
But when casting between integer types, the binary representation is simply reinterpreted. If the two types are of different sizes, the binary will be either truncated or padded to make it the right size for the target type, and then the bits are just treated as if they are of the target type. This is occasionally useful, but can more often produce surprising results, so you can choose an alternative behavior for any out-of-range cast by making it a checked conversion. info O’Reilly Media, Inc.