By Ben Albahari, Joseph Albahari
When you're programming C# 4.0 and wish a bit aid, this tightly centred and sensible ebook tells you precisely what you want to understand -- with no lengthy introductions or bloated examples. It's perfect as a succinct fast reference or as a consultant to get you swiftly up to the mark when you already recognize Java, C++, or an past model of C#.
Written through the authors of the acclaimed C# 4.0 in a Nutshell (O’Reilly), this e-book covers the total C# 4.0 language -- with out skimping at the info -- together with:
<UL> * gains new to C# 4.0, equivalent to dynamic binding, non-compulsory and named parameters, and sort parameter variance
* All of C#'s basics
* complex themes, together with operator overloading, customized conversions, style constraints, covariance and contravariance, lambda expressions and closures, iterators, nullable varieties, and operator lifting
* LINQ, beginning with sequences, lazy execution, and traditional question operators; completing with a whole connection with question expressions
* dangerous code and tips, customized attributes, preprocessor directives, and XML documentation
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Extra resources for C# 4.0 Pocket Reference
Of the real number types, float and double are called floatingpoint types and are typically used for scientific calculations. The decimal type is typically used for financial calculations, where Numeric Types | 19 Download from Library of Wow! com> base-10-accurate arithmetic and high precision are required. ) Numeric Literals Integral literals can use decimal or hexadecimal notation; hexadecimal is denoted with the 0x prefix (for example, 0x7f is equivalent to 127). Real literals may use decimal or exponential notation, such as 1E06.
In practice, this means that outside of an unsafe context, it’s impossible to access uninitialized memory. Definite assignment has three implications: • Local variables must be assigned a value before they can be read. 0)” on page 40). 0 Pocket Reference Download from Library of Wow! com> • All other variables (such as fields and array elements) are automatically initialized by the runtime. WriteLine (x); } // Compile-time error However, if x were instead a field of the containing class, this would be legal and would print 0.
While the C# specification is agnostic as to the result of an overflow, the CLR always causes wraparound behavior. 0 Pocket Reference Download from Library of Wow! com> The checked and unchecked operators The checked operator tells the runtime to generate an Over flowException rather than failing silently when an integral expression or statement exceeds the arithmetic limits of that type. The checked operator affects expressions with the ++, −−, (unary) −, +, −, *, /, and explicit conversion operators between integral types.