c++的一个程序 不知道错在哪里？请大哥指导下，在线等答案。。。。

[huanmietd]

源程序如下：
#include<iostream>
using namespace std;

int main()
{
float f=19.2F;
unsigned int* pa = reinterpret_cast<int*>(&f);
for(int i=31;i>=0;i--)
{
cout<<(*pa>>i & 1)<<(i==31||i==23 ? "-":" ");
}
cout<<endl;
return 0;
}

编译错误信息：
D:\Microsoft Visual Studio\MyProjects\test\test.cpp(7) : error C2440: 'initializing' : cannot convert from 'int *' to 'unsigned int *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
执行 cl.exe 时出错.

test.obj - 1 error(s), 0 warning(s)

[「已注销」]

reinterpret_cast <int*>(&f); 改成：reinterpret_cast <unsigned int*>(&f);

[「已注销」]

#include <iostream>
using namespace std;

int main()
{
    float f = 19.2F;
    unsigned int* pa = reinterpret_cast <unsigned int*>(&f);
    for (int i = 31;i >= 0;i--)
    {
        cout << (*pa >> i & 1) << (i == 31 || i == 23 ? "-" : " ");
    }
    cout << endl;
    return 0;
}

[jackyjkchen]

无法从“int *”转换为“unsigned int *”

unsigned int* pa = reinterpret_cast <int*>(&f);

修改下类型

[WaistCoat20]

#include <iostream>
using namespace std;

int main()
{
	float f=19.2F;
	unsigned int* pa = reinterpret_cast <unsigned int*>(&f);
	for(int i=31;i>=0;i--)
	{
		cout < <(*pa>>i & 1) < <(i==31||i==23 ? "-":" ");
	}
	cout <<endl;

	return 0;
}

[猫已经找不回了]

int main() 
{ 
float f=19.2F; 
unsigned int* pa = reinterpret_cast <unsigned int*>(&f);    //楼主你就不会改一下啊，现在可以了 
for(int i=31;i>=0;i--) 
{ 
cout <<(*pa>>i & 1) <<(i==31||i==23 ? "-":" "); 
} 
cout <<endl; 
return 0; 
} 

[huanmietd]

谢谢各位的帮助。。。。谢谢。。。

[deltamaster]

reinterpret_cast还是比较危险的。
能不用还是尽量不用的好。