C++ How to Program, 10/e

Answers to Self-Review Exercises

1. E.1

   1. #.

   2. #elif, #else.

   3. #define.

   4. whitespace.

   5. #undef.

   6. #ifdef, #ifndef.

   7. Conditional compilation.

   8. assert.

   9. #include.

   10. ##.

   11. #.

   12. \.

2. E.2 (See below.)

   
    1  // exE_02.cpp
    2  // Self-Review Exercise E.2 solution.
    3  #include <iostream>
    4  using namespace std;
    5
    6  int main() {
    7     cout << "__LINE__ = " << __LINE__ << endl
    8          << "__FILE__ = " << __FILE__ << endl
    9          << "__DATE__ = " << __DATE__ << endl
   10          << "__TIME__ = " << __TIME__ << endl
   11          << "__cplusplus = " << __cplusplus << endl;
   12  }  // end main
   

   
   __LINE__ = 9
   __FILE__ = c:\cpp4e\ch19\ex19_02.CPP
   __DATE__ = Jul 17 2002
   __TIME__ = 09:55:58
   __cplusplus = 199711L
   

3. E.3

   1. #define YES 1

   2. #define NO 0

   3. #include "common.h"

   4.  

      
      #if defined(TRUE)
         #undef TRUE
         #define TRUE 1
      #endif
      

   5.