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Assessment – C++

Assessment – C++. Jim Fawcett CSE687 – Object Oriented Design Spring 2004. C++ - Strengths. Is very powerful Can program at very low level or very high level of abstraction Has direct access to memory User defined objects are first class citizens

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Assessment – C++

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  1. Assessment – C++ Jim Fawcett CSE687 – Object Oriented Design Spring 2004

  2. C++ - Strengths • Is very powerful • Can program at very low level or very high level of abstraction • Has direct access to memory • User defined objects are first class citizens • Supports structured design, object oriented design, and generic design • Has a flexible memory model – static, stack, and heap • Language emphasizes performance • You don’t pay for features you don’t use • Almost no runtime checking • Is platform agnostic • Language and standard library apply to all platfroms • Easy to isolate platform dependencies in small modules. • Has a governing standard

  3. C++ Strengths • C++ is widely used • There are a lot of resources available: • Stroustrup’s Site • Herb Sutter's Site • CodeProject • Chris Sell's Site • Boost C++ Library • C++ at Microsoft

  4. C++ - Weaknesses! • C++ is a complex language • Context dependent • The keyword static has four distinctly different meanings, depending on the context of its use. • Has a lot of rules that are not enforced by the compiler • Use virtual destructors • Use initializers in constructors • Don’t return references to temporaries • Most rules have exceptions • Compiler will automatically generate constructors: • All constructors? No. Which ones? That depends. • In fact, the language implies many implicit operations. • The good news is that C++ does lots of things for you! • The bad news is that C++ does lots of things for you!

  5. C++ Weaknesses? • Safety is not automatic • No bounds checking • Direct access to memory • Can break the type system with casts • Thrown exceptions can leave program in undefined state. • However, you are in control! • You want bounds checking – then build it into your class – it’s not hard. • You can create smart, safe pointers if you want – we’ll see examples later. • You can safely cast and write exception safe code. You just have to know how! • That’s why, among other reasons, that you are here.

  6. C++ - Weaknesses • Things not supported by the language • Threads and synchronization • Directory services • Graphical User Interfaces • Network programming • Internet programming • Database operations • You can provide all those things. • That’s what we used to do in CSE681 – SW Modeling & Analysis

  7. C# - Strengths

  8. Ok, That’s a joke! I like C# too.

  9. Resources To Help You • Class Texts • Reference in SciTech Library – Carnagie Hall, south east corner • Friday morning help sessions: • 9:00 – 12:00 in CST 2-120 • Teaching Assistants: • Office Hours • Help Sessions • One or two sessions covering Visual Studio IDE • Computer Lab, CST 3-201, scheduled as needed

  10. End of Assessment

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