2.36.txt

int a = 3, b = 4;
decltype(a) c = a;		// c is an int
decltype((b)) d = a;	// d is an int& (decltype used with a variable in parentheses always returns a reference type, whereas decltype with a variable without
						// 				parentheses return a reference if the variable is a reference itself)
++c;
++d;

// values after code finishes:
// a = 4; b = 4; c = 4;		d is bound to a