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    <p>The most pernicious concept I've seen is that it should be treated as C with some addons. In fact, with modern C++ systems, it should be treated as a different language, and most of the C++-bashing I see is based on the "C with add-ons" model.</p> <p>To mention some issues:</p> <p>While you probably need to know the difference between <code>delete</code> and <code>delete[]</code>, you should normally be writing neither. Use smart pointers and <code>std::vector&lt;&gt;</code>.</p> <p>In fact, you should be using a <code>*</code> only rarely. Use std::string for strings. (Yes, it's badly designed. Use it anyway.)</p> <p>RAII means you don't generally have to write clean-up code. Clean-up code is bad style, and destroys conceptual locality. As a bonus, using RAII (including smart pointers) gives you a lot of basic exception safety for free. Overall, it's much better than garbage collection in some ways.</p> <p>In general, class data members shouldn't be directly visible, either by being <code>public</code> or by having getters and setters. There are exceptions (such as x and y in a point class), but they are exceptions, and should be considered as such.</p> <p>And the big one: there is no such language as C/C++. It is possible to write programs that can compile properly under either language, but such programs are not good C++ and are not normally good C. The languages have been diverging since Stroustrup started working on "C with Classes", and are less similar now than ever. Using "C/C++" as a language name is prima facie evidence that the user doesn't know what he or she is talking about. C++, properly used, is no more like C than Java or C# are.</p>
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    1. POWhat are the often misunderstood concepts in C++?
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    1. USDavid Thornley
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    1. COA C program that compiles as C++ is not normally good C? Nearly all C programs compile as C++, in my experience.
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    2. CODepends on what it does. "int * a = (int *)malloc(...)" isn't really good C, and "int * a = malloc(...)" doesn't compile under C++. Wherever there's compromises, the C++ side is usually not as good C as the C side.
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    3. CO`std::string` isn't badly designed -- it just doesn't have most of it's functionality as part of it's signature. Use STL style algorithms on it instead. Too many C++ programmers look at `std::string` as a crappy version of a Java or C# string, rather than as a full fledged STL container.
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      1. USBilly ONeal
 

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