By Scott Meyers

ISBN-10: 0201924889

ISBN-13: 9780201924886

The 1st variation of powerful C++ offered approximately 100,000 copies and was once translated into 4 languages. it is simple to appreciate why. Scott Meyers' useful method of C++ defined the principles of thumb hired through the experts-the issues they more often than not do or quite often stay away from doing-to produce transparent, right, effective code. every one of this book's 50 instructions summarizes the way to write higher C++, and the accompanying discussions are subsidized by way of particular examples. For this new version, Meyers remodeled each instruction within the booklet. the result's unprecedented adherence to C++'s Draft foreign regular, present compiler know-how, and the most recent insights into using C++ for real-world purposes

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Furthermore, compilers take care of figuring out which versions of the operators to call for different variables, so you needn't worry about specifying that the first object to be read or written is an int and the second is a Rational. In addition, objects to be read are passed using the same syntactic form as are those to be written, so you don't have to remember silly rules like you do for scanf, where if you don't already have a pointer, you have to be sure to take an address, but if you've already got a pointer, you have to be sure not to take an address.

Why, we wonder, wasn't a reference to a pointer used instead? C is a fairly simple language. All it really offers is macros, pointers, structs, arrays, and functions. No matter what the problem is, the solution will always boil down to macros, pointers, structs, arrays, and functions. Not so in C++. The macros, pointers, structs, arrays and functions are still there, of course, but so are private and protected members, function overloading, default parameters, constructors and destructors, user-defined operators, inline functions, references, friends, templates, exceptions, namespaces, and more.

As a result, chances are that you omit such handling from time to time. Like always, perhaps. Item 7 26 Memory Management Still, you must harbor a lurking sense of gUilt. I mean, what if new really does yield an exception? , to use the preprocessor. For example, a common C idiom is to define a type-independent macro to allocate memory and then check to make sure the allocation succeeded. For C++, such a macro might look something like this: #define NEW (PTR, TYPE) \ try { (PTR) = new TYPE; } \ catch (std: :bad_alloc&) { assert(O); } ("Wait!

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