// fig07_11.cpp // sizeof operator used to determine standard data type sizes. #include #include int main() { constexpr char c{}; // variable of type char constexpr short s{}; // variable of type short constexpr int i{}; // variable of type int constexpr long l{}; // variable of type long constexpr long long ll{}; // variable of type long long constexpr float f{}; // variable of type float constexpr double d{}; // variable of type double constexpr long double ld{}; // variable of type long double constexpr int array[20]{}; // built-in array of int const int* const ptr{array}; // variable of type int* std::cout << fmt::format("sizeof c = {}\tsizeof(char) = {}\n", sizeof c, sizeof(char)); std::cout << fmt::format("sizeof s = {}\tsizeof(short) = {}\n", sizeof s, sizeof(short)); std::cout << fmt::format("sizeof i = {}\tsizeof(int) = {}\n", sizeof i, sizeof(int)); std::cout << fmt::format("sizeof l = {}\tsizeof(long) = {}\n", sizeof l, sizeof(long)); std::cout << fmt::format("sizeof ll = {}\tsizeof(long long) = {}\n", sizeof ll, sizeof(long long)); std::cout << fmt::format("sizeof f = {}\tsizeof(float) = {}\n", sizeof f, sizeof(float)); std::cout << fmt::format("sizeof d = {}\tsizeof(double) = {}\n", sizeof d, sizeof(double)); std::cout << fmt::format("sizeof ld = {}\tsizeof(long double) = {}\n", sizeof ld, sizeof(long double)); std::cout << fmt::format("sizeof array = {}\n", sizeof array); std::cout << fmt::format("sizeof ptr = {}\n", sizeof ptr); } /************************************************************************** * (C) Copyright 1992-2022 by Deitel & Associates, Inc. and * * Pearson Education, Inc. All Rights Reserved. * * * * DISCLAIMER: The authors and publisher of this book have used their * * best efforts in preparing the book. These efforts include the * * development, research, and testing of the theories and programs * * to determine their effectiveness. The authors and publisher make * * no warranty of any kind, expressed or implied, with regard to these * * programs or to the documentation contained in these books. The authors * * and publisher shall not be liable in any event for incidental or * * consequential damages in connection with, or arising out of, the * * furnishing, performance, or use of these programs. * **************************************************************************/