8.5 Answers to Chapter Questions

Answer 8-1: The problem lies with the semicolon (;) at the end of the for statement. The body of the for statement is between the closing parentheses and the semicolon. In this case it is nothing. Even though the std::cout statement is indented, it is not part of the for statement. The indentation is misleading. The C++ compiler does not look at indentation. The program does nothing until the expression celsius <= 100 becomes false (celsius == 101). Then the std::cout is executed.

Answer 8-2: The problem is that we read the number into data[1] through data[5]. In C++ the range of legal array indices is 0 to <array size>-1, or in this case 0 to 4. data[5] is illegal. When we use it strange things happen; in this case the variable three_count is changed. The solution is to use only data[0] through data[4].