deductionguidesforstdpair(3)

deductionguidesforstd::pair - deductionguidesforstd::pair

Synopsis

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

One deduction_guide is provided for std::pair to account for the edge cases missed by the implicit deduction guides. In particular, non-copyable arguments and array to pointer conversion

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 }