staticarray.cpp

ThinkingC++中文版

//: C10:StaticArray.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
// Initializing static arrays in classes
#include <iostream>
using namespace std;

class Values {
  // static consts are initialized in-place:
  static const int scSize;
  static const long scLong;
  // Automatic counting works with static arrays.
  // Arrays, Non-integral and non-const statics 
  // must be initialized externally:
  static const int scInts[];
  static const long scLongs[];
  static const float scTable[];
  static const char scLetters[];
  static int size;
  static const float scFloat;
  static float table[];
  static char letters[]; 
public:
  void print()
  {
	  cout<<"Values::scSize="<<scSize;
  }
};


const int Values::scSize=100;
const long Values::scLong=100;

int Values::size = 100;
const float Values::scFloat = (float)1.1;

const int Values::scInts[] = {
  99, 47, 33, 11, 7
};

const long Values::scLongs[] = {
  99, 47, 33, 11, 7
};

const float Values::scTable[] = {
  (float)1.1, (float)2.2, float(3.3), float(4.4)
};

const char Values::scLetters[] = {
  'a', 'b', 'c', 'd', 'e',
  'f', 'g', 'h', 'i', 'j'
};

float Values::table[4] = {
  float(1.1), float(2.2), float(3.3), float(4.4)
};

char Values::letters[10] = {
  'a', 'b', 'c', 'd', 'e',
  'f', 'g', 'h', 'i', 'j'
};

void main() 
{ 
	Values v; 
	v.print();
} ///:~