Book Image

Modern C++: Efficient and Scalable Application Development

By : Richard Grimes, Marius Bancila
Book Image

Modern C++: Efficient and Scalable Application Development

By: Richard Grimes, Marius Bancila

Overview of this book

C++ is one of the most widely used programming languages. It is fast, flexible, and used to solve many programming problems. This Learning Path gives you an in-depth and hands-on experience of working with C++, using the latest recipes and understanding most recent developments. You will explore C++ programming constructs by learning about language structures, functions, and classes, which will help you identify the execution flow through code. You will also understand the importance of the C++ standard library as well as memory allocation for writing better and faster programs. Modern C++: Efficient and Scalable Application Development deals with the challenges faced with advanced C++ programming. You will work through advanced topics such as multithreading, networking, concurrency, lambda expressions, and many more recipes. By the end of this Learning Path, you will have all the skills to become a master C++ programmer. This Learning Path includes content from the following Packt products: • Beginning C++ Programming by Richard Grimes • Modern C++ Programming Cookbook by Marius Bancila • The Modern C++ Challenge by Marius Bancila
Table of Contents (24 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
12
Math Problems
13
Language Features
14
Strings and Regular Expressions
15
Streams and Filesystems
16
Date and Time
17
Algorithms and Data Structures
Index

Using the numeric libraries


The Standard Library has several libraries of classes to perform numeric manipulations. In this section we will cover two: compile-time arithmetic, using <ratio>, and complex numbers, using <complex>.

Compile time arithmetic

Fractions are a problem because there are some for which there are not enough significant figures to accurately represent them, resulting in losing accuracy when you use them in further arithmetic. Furthermore, computers are binary and merely converting decimal fractional parts to binary will lose accuracy. The <ratio> library provides classes that allow you to represent fractional numbers as objects that are ratios of integers, and perform fraction calculations as ratios. Only once you have performed all the fractional arithmetic will you convert the number to decimal, and this means that the potential loss of accuracy is minimized. The calculations performed by the classes in the <ratio> library are carried out at compile...