C++ Gems: Programming Pearls from The C++ Report (SIGS by Stanley B. Lippman PDF

By Stanley B. Lippman

ISBN-10: 0135705819

ISBN-13: 9780135705810

Stan Lippman, former C++ document Editor (and best-selling author), brings you pearls of knowledge for purchasing the main out of C++. This rigorously chosen assortment covers the 1st seven years of the C++ record, from January 1989 via December 1995. It offers the head of writing on C++ via popular specialists within the box, and is a must-read for state-of-the-art C++ programmer. It comprises information, methods, confirmed options, easy-to-follow strategies, and usable resource code.

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Additional resources for C++ Gems: Programming Pearls from The C++ Report (SIGS Reference Library)

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In addition to pseudo-templates, libg++ contains other designs and code that are almost anachronistic design assumptions that no longer hold. H++ HAS ITS ROOTS IN THE DATA Analysis and Interactive Modeling Software (DAIMS) project at the University of Washington. The objective of the project was to develop reusable mathematical modeling tools for use in fluid dynamics. Bruce Eckel and I evaluated a lot of languages and, in 1987, settled on C++, then in its infancy. We wrote a set of foundation classes that later diverged into two distinct libraries.

There was neither the time nor the space to build a complete network of symbol objects for any but the smallest programs. The correction was straightforward: keep the abstraction, but change the implementation. A critical observation is that most debugging sessions need only a handful of symbols. There is no need to build the complete network. The second implementation used a "lazy" strategy, in which a symbol object was created only when another part of the debugger needed it. For example, until the user scrolls a source text window to display a function, there is no need to create the statement objects from within that function.

Programmers themselves are in a much better position to know when to make copies and when to use references. Hiding these matters often leads to less efficient and predictable behavior, especially for classes like Strings. In many applications, tricks like copy-on-write add more overhead than they save. In many others, explicit use by programmers of pointers to shared Strings only when desirable and possible is more effective than any automated policy. Thus, except in a few cases where copy-prevention strategies are transparent and algorithmically superior, libg++ classes maintain the convention that a copy-constructor actually makes a copy.

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C++ Gems: Programming Pearls from The C++ Report (SIGS Reference Library) by Stanley B. Lippman

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