Exercise 4.34

Given the variable definitions in this section, explain what conversions take place in the following expressions:

(a) if (fval)
(b) dval = fval + ival;
(c) dval + ival * cval;

Solution

(a) fval is converted to bool.
(b) ival is converted to float; the sum of fval and ival is promoted to double.
(c) cval is promoted to int; the product of ival and cval is converted to double.