std::basic_..._view::front(3)

💖 NAME 💖

okay so this is the page for std::basic_string_view::front — literally the front-character accessor, bestie. it lives in the C++ Standard Libary manual (yes, that’s the spelling on the page, not me lol) and the page is std::basic_..._view::front(3). this is the function you call when you want the first character of a string view, and it’s giving main character energy. 💅

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🔥 Synopsis 🔥

constexpr const_reference front() const;  (since C++17)

Returns reference to the first character in the view. The behavior is undefined if empty() == true.

bestie, if empty() == true, it is undefined behavior — like, do not pass go, do not collect $200. that’s a hard no. 💀

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🎀 Parameters 🎀

(none) — she takes zero arguments, periodt. no params, no stress. ✨

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⚡ Return value ⚡

Reference to the first character, equivalent to operator[](0). literally the same character, bestie. 🫶

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💫 Complexity 💫

Constant. like, one and done, no cap. ⭐

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🌈 Example 🌈

// Run this code — go off, bestie:

        #include <iostream>
        #include <string_view>

        int main()
        {
            for (std::string_view str{"ABCDEF"}; !str.empty();
       str.remove_prefix(1))
                std::cout << str.front() << ' ' << str << '\n';
        }

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👑 Output 👑

A ABCDEF
B BCDEF
C CDEF
D DEF
E EF
F F

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🦋 See also 🦋

• back — accesses the last character (public member function)
• empty — checks whether the view is empty (public member function)
• front — accesses the first character (DR*) (public member function of std::basic_string<CharT,Traits,Allocator>)

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kbye, this iconic little page came from cppreference.com, dated 2024.06.10 — page std::basic_..._view::front(3). mwah 💋💖