C++ Primer Plus, Fourth Edition

Review Questions

1:	Consider the following two code fragments for counting spaces and newlines: // Version 1 while (cin.get(ch)) // quit on eof { if (ch == ' ') spaces++; if (ch == '\n') newlines++; } // Version 2 while (cin.get(ch)) // quit on eof { if (ch == ' ') spaces++; else if (ch == '\n') newlines++; } What advantages, if any, does the second form have over the first?
2:	In Listing 6.2, what is the effect of replacing ++ch with ch+1?
3:	Consider carefully the following program: #include <iostream> using namespace std; int main() { char ch; int ct1, ct2; ct1 = ct2 = 0; while ((ch = cin.get()) != '$') { cout << ch; ct1++; if (ch = '$') ct2++; cout << ch; } cout <<"ct1 = " << ct1 << ", ct2 = " << ct2 << "\n"; return 0; } Suppose we provide ...