auto-decltype.md

auto vs decltype

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int x;
const int& crx = x;

typedef decltype(x) type_x;
// Type is int
type_x a1 = 10;
// Type is int
auto a2 = x;

typedef decltype(crx) type_crx;
// Type is const int&
type_crx b1 = 10;
// Type is int
auto b2 = crx

Reference

• auto and decltype