3.cpp

查看各种数据在计算机的二进制存储形式

#include<iomanip.h>
#include<stdlib.h>
template<class t>void exchange(t &n)
{
	int k=sizeof(t);
	bool *p=(bool*)&n; 
	char *b=new char [8];
	for(int i=k-1;i>=0;i--)
	{
		itoa((int)*(p+i),b,2);   
		cout<<setw(8)<<setfill('0')<<b<<" "; 
	}
	cout<<endl;
}
int main()
{
	float m;
	int n;
	cout<<"int :";
	cin>>n;
	exchange(n);
	cout<<endl;
	cout<<"float :";
	cin>>m;
	exchange(m);
	return 1;
}