deductiongu...forstd::pair(3)

okay bestie, you're looking at the deductiongu...forstd::pair(3) page from the C++ Standard Libary manual, and it's lowkey iconic ✨

🎀 NAME 🎀

deductionguidesforstd::pair — deductionguidesforstd::pair (yes, it's literally the same thing twice, that's the manpage vibe 💀)

🦋 Synopsis 🦋

Defined in header <utility> — don't forget that part, bestie 🫶

template<class T1, class T2>   (since C++17)
pair(T1, T2) -> pair<T1, T2>;

So there's exactly one deduction guide provided for std::pair, and it's there to account for the edge cases missed by the implicit deduction guides — in particular, non-copyable arguments and array to pointer conversion. periodt 💅

🌈 Example 🌈

// Run this code

#include <utility>

int main()
{
    int a[2], b[3];
    std::pair p{a, b}; // explicit deduction guide is used in this case
}

That's the whole flex: std::pair p{a, b}; and the explicit deduction guide is used in this case, fr fr 🦋

okay that's the page, bestie — mwah 💋 source/version: http://cppreference.com, date: 2024.06.10.