std::experi..._view::copy(3)

💅 std::experi..._view::copy(3) 🎀

okay so this page is from the C++ Standard Library manual, and it's literally all about std::experimental::basic_string_view::copy. yes bestie, that whole entire name, we're not shortening it, it's iconic and it's staying.

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✨ NAME ✨

std::experimental::basic_string_view::copy — like, that's the function, that's the whole name, no notes 🫶

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🌸 SYNOPSIS 🌸

size_type copy( CharT* dest,

                size_type count,           (library fundamentals TS)

                size_type pos = 0) const;

so the vibe here is: it copies the substring [pos, pos + rcount) over to the character string that dest is pointing at, and rcount is the smaller of count and size() - pos. that's the whole bit. lowkey elegant ngl 💜

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🦋 PARAMETERS 🦋

• dest — pointer to the destination character string, a.k.a. where the good stuff goes ✨
• pos — position of the first character, like where you're starting from in the story 🎀
• count — requested substring length, i.e. how much you're asking for 💫

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⭐ RETURN VALUE ⭐

number of characters copied. that's it, that's the answer, no drama 👑

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🔥 EXCEPTIONS 🔥

it throws std::out_of_range if pos > size(). so like, if you're trying to start past the end of the string, it WILL call you out and you will be perceived 😭

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🌈 COMPLEXITY 🌈

linear in rcount. so the more you copy, the longer it takes — math is mathing, no cap 💀

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🍓 SEE ALSO 🍓

• substr — returns a substring (public member function) — the little sibling energy is real, go check it out bestie 💖

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🧚 CATEGORY 🧚

• Noindexed pages (she's mysterious, she's not indexed, we respect it 🙈)

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heads up bestie: this whole thing is the library fundamentals TS version, so keep that in mind before you go copying it into your main character production code 💅

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sign-off time 🫶 this lil cutie lives over at http://cppreference.com, dated 2024.06.10, and that's the tea ☕ periodt ✨🎀💜