optimized c proven techniques for heightened performance

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Optimized C

Author : Kurt Guntheroth
ISBN : 9781491922019
Genre : Computers
File Size : 49. 10 MB
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In today’s fast and competitive world, a program’s performance is just as important to customers as the features it provides. This practical guide teaches developers performance-tuning principles that enable optimization in C++. You’ll learn how to make code that already embodies best practices of C++ design run faster and consume fewer resources on any computer—whether it’s a watch, phone, workstation, supercomputer, or globe-spanning network of servers. Author Kurt Guntheroth provides several running examples that demonstrate how to apply these principles incrementally to improve existing code so it meets customer requirements for responsiveness and throughput. The advice in this book will prove itself the first time you hear a colleague exclaim, “Wow, that was fast. Who fixed something?” Locate performance hot spots using the profiler and software timers Learn to perform repeatable experiments to measure performance of code changes Optimize use of dynamically allocated variables Improve performance of hot loops and functions Speed up string handling functions Recognize efficient algorithms and optimization patterns Learn the strengths—and weaknesses—of C++ container classes View searching and sorting through an optimizer’s eye Make efficient use of C++ streaming I/O functions Use C++ thread-based concurrency features effectively

Efficient C

Author : Dov Bulka
ISBN : 0201379503
Genre : Computers
File Size : 48. 12 MB
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Far too many programmers and software designers consider efficient C++ to be an oxymoron. They regard C++ as inherently slow and inappropriate for performance-critical applications. Consequently, C++ has had little success penetrating domains such as networking, operating system kernels, device drivers, and others. "Efficient C++" explodes that myth. Written by two authors with first-hand experience wringing the last ounce of performance from commercial C++ applications, this book demonstrates the potential of C++ to produce highly efficient programs. The book reveals practical, everyday object-oriented design principles and C++ coding techniques that can yield large performance improvements. It points out common pitfalls in both design and code that generate hidden operating costs. This book focuses on combining C++'s power and flexibility with high performance and scalability, resulting in the best of both worlds. Specific topics include temporary objects, memory management, templates, inheritance, virtual functions, inlining, reference-counting, STL, and much more. With this book, you will have a valuable compendium of the best performance techniques at your fingertips. 0201379503B04062001

Advanced C Faqs

Author : Chandra Shekhar Kumar
Genre : Computers
File Size : 85. 44 MB
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This book is a combination of the following two books : Advanced C++ FAQs: Volume 1 : FundamentalsAdvanced C++ FAQs: Volume 2 : Generic Programming Advanced C++ FAQs: Volume 1 : Fundamentals This book is not an introduction to C++. It assumes that the reader is aware of the basics of C++98 and C++03 and is keen to expand her horizon to latest and greatest in the present and future of C++, including C++11 and C++1y(aka C++14). It contains selected fundamental problems with detailed solutions to all of these which will help the reader to hone her skills to solve a particular problem. Advanced C++ FAQs: Volume 2 : Generic Programming This book is sequel to the first volume Advanced C++ FAQs : Volume 1 : Fundamentals. It contains selected generic programming problems with detailed solutions. Algorithms 1.1 Efficient Insertion in Vector 1.2 reverse algorithm for forward iterators ... 1.4 swapping unequal sections 1.5 rotate algorithm ... 1.9 Avoid Raw Loops ... 1.13 better algorithm than std::rotate ... 1.16 reverse algorithm dispatch 1.17 Efficient Algorithm for reverse ... 1.21 is partitioned algorithm 1.22 Bisection Algorithm ... 1.25 advance and next 1.26 custom iota ... Utilities 2.1 std::move is rvalue cast 2.2 std::move if noexcept 2.3 std::forward ... 2.6 is same Templates 3.1 alias template 3.2 template parameter pack 3.3 override virtual and template ... ClassesNamespacesType SpecifiersConstant ExpressionC++14 ... 8.4 auto return type in function declaration ... 8.6 return type deduction for lambdas 8.7 decltype(auto) ... 8.9 explicit instantiation and auto 8.10 return type deduction and virtual ... 8.12 generalized lambda capture 8.13 generic lambda and product vector ... MiscellaneousMore C++14 10.1 variable templates ... 10.5 static data member template ... 10.7 default argument and specialization of variable template 10.8 lambda and variable template ... 10.15 auto variable template and generic lambda 10.16 constexpr member functions and implicit const 10.17 constexpr constructor and initialization ... 10.23 deprecated attribute 10.24 Member initializers and aggregate class ... 10.31 Type Transformation Aliases ... 10.33 make unique as perfect forwarding guy ... 10.37 make unique and default initialization 10.38 make unique and array T[n] ... 10.43 Extend make unique : T[N] 10.44 allocate unique 10.45 Compile-time integer sequences ... 10.47 std::index sequence 10.48 Custom Sequence : Addition ... 10.55 sfinae and represent type of function 10.56 metafunction : check presence of type member 10.57 std::common type and sfinae Foundation 11.1 private cast 11.2 Value Type Deduction Framework ... 11.5 Template Alias and Rebind Template 11.6 Template Alias and Non Deducible Context ... 11.8 Template Alias and Specialization ... 11.13 std::copy backward ... 11.18 iota n : iota for writing n items 11.19 Reverse iota ... 11.24 Preventing Name Hijacking ... 11.29 Move Constructor and unique pointer 11.30 Find First Null Pointer in a Container 11.31 Average of variable number of arguments .... 11.33 Exchange Utility 11.34 Addressing Tuple By Type 11.35 Quoted manipulators 11.36 Null Iterator

Optimizing C

Author : Steve Heller
ISBN : UCSD:31822009042961
Genre : Computers
File Size : 35. 90 MB
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The programmer-friendly guide to maximizing C++ application performance! Getting a program to work is just the beginning: it must work efficiently, making the most of limited time, memory, and disk space. Now, legendary programmer Steve Heller --author of the best-seller "Who's Afraid of C++?"-- introduces a collection of power house algorithms that can supercharge virtually any C++ program. From streamlining random access to variable-length records to speeding large database sorts, you'll find it here-along with practical, "nothing-left-out" explanations. Coverage includes: Advanced dynamic hashing and caching algorithms. Bitmaps and other data compression techniques. Fast-sorting algorithms that use memory efficiently. Based on the new ANSI C++ standard, this "programmer-friendly" book includes extensive real-life examples and code samples - all personally typeset by the author to minimize the chance of error. If you want to squeeze every last drop of performance out of your C++ code, Optimizing C++ is the book you've been waiting for! The accompanying CD-ROM includes a complete collection of Steve Heller's Optimizing C++ algorithms, plus an industrial-strength C++ compiler.

Direct Methods For Sparse Linear Systems

Author : Timothy A. Davis
ISBN : 9780898716139
Genre : Computers
File Size : 35. 45 MB
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The sparse backslash book. Everything you wanted to know but never dared to ask about modern direct linear solvers. Chen Greif, Assistant Professor, Department of Computer Science, University of British Columbia.Overall, the book is magnificent. It fills a long-felt need for an accessible textbook on modern sparse direct methods. Its choice of scope is excellent John Gilbert, Professor, Department of Computer Science, University of California, Santa Barbara.Computational scientists often encounter problems requiring the solution of sparse systems of linear equations. Attacking these problems efficiently requires an in-depth knowledge of the underlying theory, algorithms, and data structures found in sparse matrix software libraries. Here, Davis presents the fundamentals of sparse matrix algorithms to provide the requisite background. The book includes CSparse, a concise downloadable sparse matrix package that illustrates the algorithms and theorems presented in the book and equips readers with the tools necessary to understand larger and more complex software packages.With a strong emphasis on MATLAB and the C programming language, Direct Methods for Sparse Linear Systems equips readers with the working knowledge required to use sparse solver packages and write code to interface applications to those packages. The book also explains how MATLAB performs its sparse matrix computations.Audience This invaluable book is essential to computational scientists and software developers who want to understand the theory and algorithms behind modern techniques used to solve large sparse linear systems. The book also serves as an excellent practical resource for students with an interest in combinatorial scientific computing.Preface; Chapter 1: Introduction; Chapter 2: Basic algorithms; Chapter 3: Solving triangular systems; Chapter 4: Cholesky factorization; Chapter 5: Orthogonal methods; Chapter 6: LU factorization; Chapter 7: Fill-reducing orderings; Chapter 8: Solving sparse linear systems; Chapter 9: CSparse; Chapter 10: Sparse matrices in MATLAB; Appendix: Basics of the C programming language; Bibliography; Index.

Api Design For C

Author : Martin Reddy
ISBN : 0123850045
Genre : Computers
File Size : 31. 25 MB
Format : PDF
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API Design for C++ provides a comprehensive discussion of Application Programming Interface (API) development, from initial design through implementation, testing, documentation, release, versioning, maintenance, and deprecation. It is the only book that teaches the strategies of C++ API development, including interface design, versioning, scripting, and plug-in extensibility. Drawing from the author's experience on large scale, collaborative software projects, the text offers practical techniques of API design that produce robust code for the long term. It presents patterns and practices that provide real value to individual developers as well as organizations. API Design for C++ explores often overlooked issues, both technical and non-technical, contributing to successful design decisions that product high quality, robust, and long-lived APIs. It focuses on various API styles and patterns that will allow you to produce elegant and durable libraries. A discussion on testing strategies concentrates on automated API testing techniques rather than attempting to include end-user application testing techniques such as GUI testing, system testing, or manual testing. Each concept is illustrated with extensive C++ code examples, and fully functional examples and working source code for experimentation are available online. This book will be helpful to new programmers who understand the fundamentals of C++ and who want to advance their design skills, as well as to senior engineers and software architects seeking to gain new expertise to complement their existing talents. Three specific groups of readers are targeted: practicing software engineers and architects, technical managers, and students and educators. The only book that teaches the strategies of C++ API development, including design, versioning, documentation, testing, scripting, and extensibility. Extensive code examples illustrate each concept, with fully functional examples and working source code for experimentation available online. Covers various API styles and patterns with a focus on practical and efficient designs for large-scale long-term projects.

C Coding Standards

Author : Herb Sutter
ISBN : 0132654423
Genre : Computers
File Size : 53. 67 MB
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Consistent, high-quality coding standards improve software quality, reduce time-to-market, promote teamwork, eliminate time wasted on inconsequential matters, and simplify maintenance. Now, two of the world's most respected C++ experts distill the rich collective experience of the global C++ community into a set of coding standards that every developer and development team can understand and use as a basis for their own coding standards. The authors cover virtually every facet of C++ programming: design and coding style, functions, operators, class design, inheritance, construction/destruction, copying, assignment, namespaces, modules, templates, genericity, exceptions, STL containers and algorithms, and more. Each standard is described concisely, with practical examples. From type definition to error handling, this book presents C++ best practices, including some that have only recently been identified and standardized-techniques you may not know even if you've used C++ for years. Along the way, you'll find answers to questions like What's worth standardizing--and what isn't? What are the best ways to code for scalability? What are the elements of a rational error handling policy? How (and why) do you avoid unnecessary initialization, cyclic, and definitional dependencies? When (and how) should you use static and dynamic polymorphism together? How do you practice "safe" overriding? When should you provide a no-fail swap? Why and how should you prevent exceptions from propagating across module boundaries? Why shouldn't you write namespace declarations or directives in a header file? Why should you use STL vector and string instead of arrays? How do you choose the right STL search or sort algorithm? What rules should you follow to ensure type-safe code? Whether you're working alone or with others, C++ Coding Standards will help you write cleaner code--and write it faster, with fewer hassles and less frustration.

Large Scale C Software Development

Author : John Lakos
ISBN : 0201717069
Genre : Computers
File Size : 87. 53 MB
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Designing scalable software in C++ requires more than just a sound understanding of the logical design issues covered in most C++ programming books. To succeed, senior developers, architects, and project leaders need a grasp of high-level physical design concepts with which even expert software developers have little or no experience. This concise, approachable guide takes a practitioner's view of large-scale software development, while providing all the information you need to quickly apply architectural-level physical design concepts in your everyday work. All content is presented in self-contained modules that make it easy to find what you need -- and use it. John Lakos presents crucial new material on runtime dependencies and other architectural issues, as well as realistic small examples that add value by illuminating broad and deep issues in large-scale C++ application design.

How To Use Objects

Author : Holger Gast
ISBN : 0321995546
Genre : Object-oriented programming (Computer science)
File Size : 40. 77 MB
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While most developers today use object-oriented languages, the full power of objects is available only to those with a deep understanding of the object paradigm. How to Use Objects will help you gain that understanding, so you can write code that works exceptionally well in the real world. Author Holger Gast focuses on the concepts that have repeatedly proven most valuable and shows how to render those concepts in concrete code. Rather than settling for minimal examples, he explores crucial intricacies, clarifies easily misunderstood ideas, and helps you avoid subtle errors that could have disastrous consequences. Gast addresses the technical aspects of working with languages, libraries, and frameworks, as well as the strategic decisions associated with patterns, contracts, design, and system architecture. He explains the roles of individual objects in a complete application, how they react to events and fulfill service requests, and how to transform excellent designs into excellent code. Using practical examples based on Eclipse, he also shows how tools can help you work more efficiently, save you time, and sometimes even write high-quality code for you. Gast writes for developers who have at least basic experience: those who've finished an introductory programming course, a university computer science curriculum, or a first or second job assignment. Coverage includes * Understanding what a professionally designed object really looks like * Writing code that reflects your true intentions--and testing to make sure it does * Applying language idioms and connotations to write more readable and maintainable code * Using design-by-contract to write code that consistently does what it's supposed to do * Coding and architecting effective event-driven software * Separating model and view, and avoiding common mistakes * Mastering strategies and patterns for efficient, flexible design * Ensuring predictable object collaboration via responsibility-driven design Register your product at informit.com/register for convenient access to downloads, updates, and corrections as they become available.

Commodity Algorithms And Data Structures In C

Author : Dmytro Kedyk
ISBN : 1519572646
Genre : C++ (Computer program language)
File Size : 46. 43 MB
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Dmytro's study of software engineering, particularly software economics and developer productivity, influenced this book's emphasis on simplicity and preference for solution methods applicable to a variety of problems.--back cover

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