fig08_05.cpp

// fig08_05.cpp
// Printing string characteristics.
#include <fmt/format.h> 
#include <iostream>
#include <string>

// display string statistics
void printStatistics(const std::string& s) {
   std::cout << fmt::format(
      "capacity: {}\nmax size: {}\nsize: {}\nempty: {}",
      s.capacity(), s.max_size(), s.size(), s.empty());
}

int main() {
   std::string string1; // empty string

   std::cout << "Statistics before input:\n";
   printStatistics(string1);

   std::cout << "\n\nEnter a string: ";
   std::cin >> string1; // delimited by whitespace
   std::cout << fmt::format("The string entered was: {}\n", string1);
   std::cout << "Statistics after input:\n";
   printStatistics(string1);

   std::cout << "\n\nEnter a string: ";
   std::cin >> string1; // delimited by whitespace
   std::cout << fmt::format("The string entered was: {}\n", string1);
   std::cout << "Statistics after input:\n";
   printStatistics(string1);

   // append 46 characters to string1
   string1 += "1234567890abcdefghijklmnopqrstuvwxyz1234567890";
   std::cout << fmt::format("\n\nstring1 is now: {}\n", string1);
   std::cout << "Statistics after concatenation:\n";
   printStatistics(string1);

   string1.resize(string1.size() + 10); // add 10 elements to string1
   std::cout << "\n\nStatistics after resizing to add 10 characters:\n";
   printStatistics(string1);
   std::cout << '\n';
}

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