std::regex_...:regex_error(3)

💖 std::regex_...:regex_error(3) 💖

okay bestie, welcome to the C++ Standard Libary manual page for std::regex_error::regex_error — yes, that's the constructor for the regex error class, and it's lowkey the main character of this page. It literally has the same name twice because constructors love that for themselves. 💅

✨ NAME ✨

std::regex_error::regex_error — std::regex_error::regex_error

no cap, that's the whole name. it's giving “I am my own twin” but make it C++. 🫶

🦋 Synopsis 🦋

okay so it's defined in header <regex>, and both of these constructors have been here since C++11. here's the exact tea:

Defined in header <regex>
regex_error( std::regex_constants::error_type ecode ); (1) (since C++11)
regex_error( const regex_error& other );               (2) (since C++11)

1. Constructs a regex_error with a given ecode of type std::regex_constants::error_type. literally builds the error object from the code you pass in. 🔥
2. Copy constructor. Initializes the contents with those of other. and if *this and other both have dynamic type std::regex_error then std::strcmp(what(), other.what()) == 0 — yes, that exact check, character for character. 👑

🌸 Parameters 🌸

• ecode — error code indicating the error raised in regular expression parsing. it's the little sign that says what went wrong in regex land. 🍓
• other — another regex_error object to copy. your classic copy-paste bestie. 🎀

👑 See also 👑

• error_type — describes different types of matching errors (C++11) (typedef). iconic little typedef behavior, honestly. 💜

💖 and that's the page, bestie! source: http://cppreference.com, version/date: 2024.06.10, page: std::regex_...:regex_error(3). go forth and construct your regex errors responsibly 🫶✨