Explore the full potential of C++ by mastering the standard library.

Become a C++ Programmer

The C++ standard library is a collection of all the tools and utilities available in C++. It received its latest update in 2017, known as C++17. The update introduces many new features that further optimize our code. This module will help us fully grasp C++ and use it to its full potential.

C++ Standard Library

C++ offers many methods to create strings from C or C++ strings. Under the hood, there is always a C string involved for creating a C++string. That changes with C++14, because the new C++ standard supports C++ string literals: `std::string str{"string"s}`. With the suffix s,the C string literal `"string literal"` becomes a C++string literal:`"string literal"s`.
 
The table gives us an overview of the methods to create and delete a C++string.

| **Methods** | **Example** |
|-|-|
| Default | `std::string str` |
| Copies from a C++ string | `std::string str(oth)` |
| Moves from a C++ string | `std::string str(std::move(oth))` |
| From the range of a C++ string | `std::string(oth.begin(), oth.end())` |
| From a substring of a C++ string | `std::string(oth, otherIndex)` |
| From a substring of a C++ string | `std::string(oth, otherIndex, strlen)` |
| From a C string | `std::string str("c-string")` |
| From a C array| `std::string str("c-array", len)` |
| From characters | `std::string str(num, 'c')` |
| From a initializer list | `std::string str({'a', 'b', 'c', 'd'})` |
| From a substring | `str= other.substring(3, 10)` |
| Destructor | `str.~string()` |
<p> <strong> Methods to create and delete a string </strong> </p>


Let's start things off by learning how to create and destroy strings.

Create and Delete