Write a version of the transaction-processing program from § 1.6 (p. 24) using the Sales_d...

Write a version of the transaction-processing program from § 1.6 (p. 24) using the Sales_data class you defined for the exercises in § 2.6.1 (p. 72).

§ 1.6 (p. 24)

Exercise 1.25

Using the Sales_item.h header from the Web site, compile and execute the bookstore program presented in this section.

§ 2.6.1 (p. 72)

Exercise 2.36

In the following code, determine the type of each variable and the value each variable has when the code finishes:

int a = 3, b = 4;decltype(a) c = a;decltype((b)) d = a;++c;++d;

Exercise 2.37

Assignment is an example of an expression that yields a reference type. The type is a reference to the type of the left-hand operand. That is, if i is an int, then the type of the expression i = x is int&. Using that knowledge, determine the type and value of each variable in this code:

int a = 3, b = 4;decltype(a) c = a;decltype(a = b) d = a;