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  1. C++ provides a robust std::string class in the <string> library, which includes numerous functions for string manipulation. Below is a detailed overview of commonly used string functions and their applications, along with examples.

    Commonly Used String Functions

    1. Length of a String

    • Function: length() or size()

    • Use: Returns the number of characters in the string.

    • Example:

    std::string text = "Hello, World!";
    int len = text.length(); // or text.size();
    std::cout << "Length: " << len << std::endl; // Output: 13
    Cóipeáilte!

    2. Accessing Characters

    • Function: at(index) or []

    • Use: Accesses a character at a specific index.

    • Example:

    std::string str = "C++";
    char ch = str.at(1); // or str[1];
    std::cout << "Character: " << ch << std::endl; // Output: +
    Cóipeáilte!

    3. Concatenating Strings

    • Function: + operator or append()

    • Use: Combines two strings.

    • Example:

    Aiseolas
    Go raibh maith agat!Inis tuilleadh dúinn
  2. C++ string Library Reference (string functions) - W3Schools

    The <string> library has many functions that allow you to perform tasks on strings. A list of all string functions can be found in the table below. Learn more about strings in our C++ Strings Tutorial.

  3. Returning a C string from a function - Stack Overflow

    In C++ use 'helper classes' (for example, std::string) to handle the longevity of data (which requires changing the function's return value), or pass a buffer to the function that gets filled in with information.

    • Athbhreithnithe: 14
    • string - C++ Users

      Learn how to use the string class to represent and manipulate sequences of characters in C++. The web page provides the definition, member types, member functions, and non-member function overloads …

    • C++ Strings (With Examples) - Programiz

      In this tutorial, you'll learn to handle strings in C++. You'll learn to declare them, initialize them and use them for various input/output operations.

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