58 lines
2.4 KiB
C++
58 lines
2.4 KiB
C++
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// fig13_02.cpp
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// Standard library vector class template.
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#include <fmt/format.h> // C++20: This will be #include <format>
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#include <iostream>
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#include <ranges>
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#include <vector> // vector class-template definition
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// display value appended to vector and updated vector size and capacity
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void showResult(int value, size_t size, size_t capacity) {
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std::cout << fmt::format("appended: {}; size: {}; capacity: {}\n",
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value, size, capacity);
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}
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int main() {
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std::vector<int> integers{}; // create vector of ints
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std::cout << "Size of integers: " << integers.size()
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<< "\nCapacity of integers: " << integers.capacity() << "\n\n";
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// append 1-10 to integers and display updated size and capacity
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for (int i : std::views::iota(1, 11)) {
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integers.push_back(i); // push_back is in vector, deque and list
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showResult(i, integers.size(), integers.capacity());
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}
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std::cout << "\nOutput integers using iterators: ";
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for (auto constIterator{integers.cbegin()};
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constIterator != integers.cend(); ++constIterator) {
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std::cout << *constIterator << ' ';
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}
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std::cout << "\nOutput integers in reverse using iterators: ";
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// display vector in reverse order using const_reverse_iterator
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for (auto reverseIterator{integers.crbegin()};
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reverseIterator != integers.crend(); ++reverseIterator) {
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std::cout << *reverseIterator << ' ';
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}
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std::cout << "\n";
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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**************************************************************************/
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