Exercise 9.39

Explain what the following program fragment does:

vector<string> svec;
svec.reserve(1024);
string word;
while (cin >> word)
    svec.push_back(word);
svec.resize(svec.size()+svec.size()/2);

Solution

The program allocates memory for 1024 elements, adds elements until cin returns zero, and then increases the vector by 150%.