第五章C++Primer表达式

C++基本数据类型大小

millymolly

于 2015-10-12 19:48:46 发布

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本文展示了一个使用C++程序来打印各种基本数据类型的大小，包括整型、浮点型等，有助于理解不同数据类型在内存中占用的空间。

#include "stdafx.h"

#include<iostream>

using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{

cout << "type\t\t\t" << "size" << endl
  << "bool\t\t\t" << sizeof(bool) << endl
  << "char\t\t\t" << sizeof(char) << endl
  << "signed char\t\t" << sizeof(signed char) << endl
  << "unsigned char\t\t" << sizeof(unsigned char) << endl
  << "wchar_t\t\t\t" << sizeof(wchar_t) << endl
  << "short\t\t\t" << sizeof(short) << endl
  << "signed short\t\t" << sizeof(signed short) << endl
  << "unsigned short\t\t" << sizeof(unsigned short) << endl
  << "int\t\t\t" << sizeof(int) << endl
  << "signed int\t\t" << sizeof(signed int) << endl
  << "unsigned int\t\t" << sizeof(unsigned int) << endl
  << "long\t\t\t" << sizeof(long) << endl
  << "unsigned long\t\t" << sizeof(unsigned long) << endl
  << "signed long\t\t" << sizeof(signed long) << endl
  << "float\t\t\t" << sizeof(float) << endl
  << "double\t\t\t" << sizeof(double) << endl
  << "long double\t\t" << sizeof(long double) << endl;

system("pause");
return 0;