Book Image

Data Structures and Algorithms with the C++ STL

By : John Farrier
5 (2)
Book Image

Data Structures and Algorithms with the C++ STL

5 (2)
By: John Farrier

Overview of this book

While the Standard Template Library (STL) offers a rich set of tools for data structures and algorithms, navigating its intricacies can be daunting for intermediate C++ developers without expert guidance. This book offers a thorough exploration of the STL’s components, covering fundamental data structures, advanced algorithms, and concurrency features. Starting with an in-depth analysis of the std::vector, this book highlights its pivotal role in the STL, progressing toward building your proficiency in utilizing vectors, managing memory, and leveraging iterators. The book then advances to STL’s data structures, including sequence containers, associative containers, and unordered containers, simplifying the concepts of container adaptors and views to enhance your knowledge of modern STL programming. Shifting the focus to STL algorithms, you’ll get to grips with sorting, searching, and transformations and develop the skills to implement and modify algorithms with best practices. Advanced sections cover extending the STL with custom types and algorithms, as well as concurrency features, exception safety, and parallel algorithms. By the end of this book, you’ll have transformed into a proficient STL practitioner ready to tackle real-world challenges and build efficient and scalable C++ applications.
Table of Contents (30 chapters)
Free Chapter
1
Part 1: Mastering std::vector
7
Part 2: Understanding STL Data Structures
13
Part 3: Mastering STL Algorithms
19
Part 4: Creating STL-Compatible Types and Algorithms
23
Part 5: STL Data Structures and Algorithms: Under the Hood

Ranges for searching algorithms

When delving into the domain of algorithmic searching within the STL, it’s evident that the advent of ranges heralds an era of simplified and expressive code. To appreciate this evolution, looking back at the traditional search methods in the STL is essential.

The classic way of searching within a container involved using functions such as std::find or std::find_if, wherein you’d provide iterators marking the search range:

std::vector<int> nums = {1, 2, 3, 4, 5};
auto it = std::find(nums.begin(), nums.end(), 3);

Effective? Yes. Optimal in terms of expressiveness and adaptability? Perhaps not.

Finding elegance – range-based searching

The transition to more readable and concise code is evident using the range-based approach. With ranges, searching operations become inherently more declarative, as shown in the following code:

std::vector<int> nums = {1, 2, 3, 4, 5};
auto it = std::ranges::find(nums, 3);
...