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lect6 - Yin Lou CS 2026 Spring 2010 First assignment due...

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Yin Lou CS 2026, Spring 2010
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First assignment due today Second assignment will be released due in one week
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Function parameters: ref, out, params Iterators Advanced C# topics: Nullable types Partial Classes Generics
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Delegates Anonymous methods Events
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Treat functions as “first - class” objects Pass functions to other functions OCaml C/C++ Java No equivalent way to get function pointers use inner classes (or interfaces) that contain methods map (fun x -> x*x) [1; 2; 3] ;; typedef int (*fptr) (int); int apply(fptr f, int var) { return f(var); } int F(int var) { .. } fptr f = F; apply(f,10); //same as F(10)
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An objectified function Is a type that references a method behaves like C/C++ style function pointer inherits from System.Delegate sealed implicitly eg. delegate int Func(int x) defines a new type Func: takes int, returns int declared like a function with an extra keyword Contrast C syntax: typedef int (*fptr)(int); stores a list of methods to call
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