runtime_error未定义！怎么解决？

哈利_蜘蛛侠 2013-10-06 04:18:42

按照《C++ Primer》上面的例子，在VS 2008里进行编译，可是编译的时候提示错误，就是
runtime_error identifier not found
这个是什么情况？



//

#include <iostream>

#include <stdexcept>

using std::cin;

using std::cout;

using std::endl;

void keep_window_open();



int main()

{

	int dividend=1, divisor=1;

	cout<<"\nInput the dividend:\t";

	cin>>dividend;



	cout<<"\nInput the divisor:\t";

	cin>>divisor;

	if(divisor <=0)

		throw runtime_error("\nNo! The divisor must be a positive number!\n");



	keep_window_open();

}



void keep_window_open()

{

	cout << "\nPress any key to exit:";

	getchar();

}

难道是编译器的问题？不会这么坑吧？

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booirror 2013-10-07

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用std::runtime_error 替换runtime_error

哈利_蜘蛛侠 2013-10-07

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哈哈哈，终于搞定啦！确实如4楼所言哦！下面是我编的一个无聊的小程序：


//
#include <iostream>

using std::cin;
using std::cout;
using std::endl;
using std::runtime_error;

void keep_window_open();

int main()
{
	int dividend=1, divisor=1;
	int result=1;
	char decide1 = 'y', decide2 = 'y';
	
	while(decide1 == 'y')
	{
		cout<<"\nInput the dividend:\t";
		cin>>dividend;
		try
		{
			if(dividend<0)
			{
				throw runtime_error("For convenience, please make sure dividend is non-negative!\n");

			}
			decide1 = 'n';
		
			while(decide2 == 'y')
			{
				cout<<"\nInput the divisor:\t";
				cin>>divisor;
				try
				{
					if(divisor<=0)
						throw runtime_error("For convenience, divisor must be positive!\n");
					decide2 = 'n';
					result = dividend/divisor;
				}catch(runtime_error err)
				{
					cout << err.what()
						 << "\n Try Once More? Enter y or n "<<endl;
					cin >>decide2;
				}
			}
		}catch(runtime_error err)
			{
				cout << err.what()
					 << "\n Try Again? Enter y or n" << endl;
				cin >>decide1;
			}
	}

	cout <<"\nSo the quotient of "<<dividend<<" divided by "<<divisor<<" is:\t"<<result<<endl;

	keep_window_open();
}

void keep_window_open()
{
	cout << "\nPress any key to exit:";
	getchar();
}