// Determine sizes of types for a particular environment

// (C) 2002 Bill Lenhart

#include <iostream>
// #include <filename> inserts the contents of a header file

// iostream provides basic I/O services, including input and output streams
// cout is the "default" output stream; endl is the end-of-line value

int main(void) {

  cout << "Built-in types and their sizes." << endl;
  cout << "All values are multiples of the size of a char." << endl;
  cout << "So, e.g., a char has size 1 (presumably 1 byte)" << endl;
  cout << endl;

  cout << "Plain types" << endl;
  cout << "bool: " << sizeof(bool) << endl;
  cout << "char: " << sizeof(char) << endl;
  cout << "short: " << sizeof(short) << endl;
  cout << "int: " << sizeof(int) << endl;
  cout << "long: " << sizeof(long) << endl;
  cout << "float: " << sizeof(float) << endl;
  cout << "double: " << sizeof(double) << endl;
  cout << endl;
  cout << "void* is a generic pointer type...." << endl;
  cout << "void*: " << sizeof(void*) << endl;
  cout << endl;

  cout << "Unsigned types" << endl;
  cout << "unsigned char: " << sizeof(unsigned char) << endl;
  cout << "unsigned short: " << sizeof(unsigned short) << endl;
  cout << "unsigned int: " << sizeof(unsigned int) << endl;
  cout << "unsigned long: " << sizeof(unsigned long) << endl;
  cout << endl;

  cout << "There are also 'signed' types, but we don't care about them here."
       << endl;

  // Notice that the previous command spanned multiple lines in the file.
  // This (along with good indenting) helps maintain readability.

  // By popular demand
  return 0;
}