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 strings


The example will read in emails as a text file and processed. An email in Internet message format will be in two parts: the header and message body. This is simple processing, so no attempt is carried out to process MIME email body formatting (although this code can be used as a starting point for that). The email body will start after the first blank line, and Internet standards say that lines should be no longer than 78 characters. If they are longer they must not be longer than 998 characters. This means that newlines (carriage return, linefeed pairs) are used to maintain this rule, and that an end of paragraph is indicated by a blank line.

Headers are more complicated. In their simplest form, a header is on a single line and is in the form name:value. The header name is separated from the header value by a colon. A header may be split over more than one line using a format called folded white space, where the newline splitting a header is placed before whitespace (space...