Effective Modern C++: 42 Specific Ways to Improve Your Use - download pdf or read online

By Scott Meyers

ISBN-10: 1491903996

ISBN-13: 9781491903995

Coming to grips with C++11 and C++14 is greater than an issue of familiarizing your self with the positive aspects they introduce (e.g., car variety declarations, stream semantics, lambda expressions, and concurrency support). The problem is studying to take advantage of these beneficial properties effectively—so that your software program is true, effective, maintainable, and transportable. That’s the place this useful e-book is available in. It describes find out how to write really nice software program utilizing C++11 and C++14—i.e. utilizing sleek C++.

Topics include:

* the professionals and cons of braced initialization, noexcept requirements, excellent forwarding, and shrewdpermanent pointer make functions
* The relationships between std::move, std::forward, rvalue references, and common references
* ideas for writing transparent, right, powerful lambda expressions
* How std::atomic differs from risky, how every one will be used, and the way they relate to C++'s concurrency API
* How top practices in "old" C++ programming (i.e., C++98) require revision for software program improvement in sleek C++

Effective glossy C++ follows the confirmed guideline-based, example-driven layout of Scott Meyers' previous books, yet covers totally new material.


If you’re an skilled C++ programmer and are something like me, you at first approached C++11 considering, “Yes, definite, i am getting it. It’s C++, in simple terms extra so.” yet as you discovered extra, you have been shocked through the scope of the adjustments. automobile declarations, range-based for loops, lambda expressions, and rvalue references swap the face of C++, to assert not anything of the recent concurrency good points. after which there are the idiomatic alterations. zero and typedefs are out, nullptr and alias declarations are in. Enums should still now be scoped. clever tips at the moment are most excellent to integrated ones. relocating gadgets is generally larger than copying them.

There’s much to benefit approximately C++11, let alone C++14.

More importantly, there’s much to profit approximately making potent use of the recent functions. if you want easy information regarding “modern” C++ positive factors, assets abound, but when you’re searching for counsel on the way to hire the good points to create software program that’s right, effective, maintainable, and conveyable, the quest is tougher. That’s the place this booklet is available in. It’s committed to not describing the positive factors of C++11 and C++14, yet as an alternative to their powerful application.

The details within the e-book is damaged into directions known as goods. are looking to comprehend some of the kinds of kind deduction? Or comprehend while (and while no longer) to take advantage of vehicle declarations? Are you interested by why const member services may be thread secure, tips to enforce the Pimpl Idiom utilizing std::unique_ptr, why you have to stay away from default trap modes in lambda expressions, or the variations among std::atomic and unstable? The solutions are all right here. additionally, they’re platform-independent, Standards-conformant solutions. this can be a booklet approximately transportable C++.

The goods during this booklet are instructions, now not ideas, simply because guidance have exceptions. an important a part of each one merchandise isn't the suggestion it bargains, however the reason in the back of the recommendation. as soon as you’ve learn that, you’ll be able to be sure no matter if the conditions of your venture justify a contravention of the Item’s advice. the genuine objective of this booklet isn’t to inform you what to do or what to prevent doing, yet to express a deeper figuring out of ways issues paintings in C++11 and C++14.

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Extra resources for Effective Modern C++: 42 Specific Ways to Improve Your Use of C++11 and C++14

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22 1. Die Technik des Zeichnens Wir haben uns hier sehr eng an die Begriffsbestimmungen der ausgezeichneten Handbücher zu TURBO-PASCAL gehalten. über die großen Vorteile bei der Verwendung von Objekten ist schon so viel geschrieben worden, daß wir dieses Thema nicht auch noch einmal aufgreifen wollen. Es stellt sich nur noch die Frage, warum wir in der Entwicklung unseres Gesamtkonzeptes erst recht spät Objekte einsetzen. Wir hätten ja auch Punkte und Vektoren schon als Objekttypen einführen können.

Die letzten drei Methoden schauen wir uns nun etwas genauer an. Mit der Methode IntersectWithLine bringen wir die Kugel mit einer Geraden Ln zum Schnitt. 1) beschrieben werden kann. d ein, + t~ so erhält man eine quadratische 1. 3) für den Geradenparameter t mit den Koeffizienten a b = i:ii:ü . d - R2 . 3) keine reelle Lösung, so schneidet die Gerade Ln die Kugel nicht. 3) die Parameter der Schnittpunkte bezogen auf die Darstellung der Geraden Ln. Die Methode IntersectWithLine gibt zunächst die Anzahl NOS der Schnittpunkte aus.

Um hier den Unterschied zur Methode DrawCurve2D zu erkennen, schauen wir uns wieder einen Teil der Implementation an. DrawCurve3D: VAR ..... X: IF OnlyScreen THEN BEGIN L := 0: TToP (T, P); Project (P, PrRay,Dist,Q); Check (P,PrRay,Dist, Chk); ChkOl d := Chk; TransformationOS (0, PScr); IF Chk THEN HoveToPtScr (PScr); 1. Die Technik des Zeichnens 42 CASE (IP > 0) OF TRUE: BEGIN END; FALSE: BEGIN FOR L := 1 TO LL DO BEGIN T := T+Step; TIoP (T, P); Project (P, PrRay,Dist,O); Check (P,PrRay,Dist, Chk); DrawOS (WP,O,ChkOld,Chk,Col); ChkOld := Chk; END; END; END; END (*** OF OnlyScreen=TRUE ***) ELSE BEGIN END; END; Wie wir sehen, wird hier im Unterschied zur Methode DrawCurve2D nach der Berechnung des Kurvenpunktes P in TToP zunachst die Prozedur Project aufgerufen.

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Effective Modern C++: 42 Specific Ways to Improve Your Use of C++11 and C++14 by Scott Meyers

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