c++标准程序库异常

案例1：
// out_of_range
#include “iostream”
using namespace std;
#include

class Teacher
{
public:
Teacher(int age) //构造函数, 通过异常机制 处理错误
{
if (age > 100)
{
throw out_of_range(“年龄太大”);
}
this->age = age;
}
protected:
private:
int age;
};

void mainxx()
{
try
{
Teacher t1(102);
}
catch (out_of_range e)
{
cout << e.what() << endl;
}
exception e;
system(“pause”);
}

案例2
class Dog
{
public:
Dog()
{
parr = new int[10241024100]; //4MB
}
private:
int *parr;
};

int main31()
{
Dog *pDog;
try{
for(int i=1; i<1024; i++) //40GB!
{
pDog = new Dog();
cout << i << “: new Dog 成功.” << endl;
}
}
catch(bad_alloc err)
{
cout << "new Dog 失败: " << err.what() << endl;
}
return 0;

}
案例3