c++捕获空指针异常

/**********************************

//project -> Properties -> C/C++ -> Code Generation --> Enable C++ Exceptions

//选择 Yes with SEH Exceptions (/EHa) 这样的话C++的try catch 也可以捕获到空指针,内存越界,0除异常

//默认是选择Yes (/EHsc)

**********************************/

void TestIntType()

{

try

{

throw 1;

}

catch(...)

{

cout<< "在 try block 中, 准备抛出一个异常." << endl;

}

}

void TestDoubleType()

{

try

{

throw 0.5;

}

catch(...)

{

cout<< "在 try block 中, 准备抛出一个异常." << endl;

}

}

void TestEmptyPointType()

{

try

{

int* p = NULL;

*p = 3;

}

catch(...)

{

cout<< "非法地址操作异常" << endl;

}

}

void TestDivZeroType()

{

try

{

int b = 0;

int a = 3/b;

}

catch(...)

{

cout<< "0除异常" << endl;

}

}

void TestMemoryOutType()

{

int * a = new int[4];

try

{

for (int i = 0; i<245; i++)

{

a++;

}

*a = 3;

}

catch(...)

{

cout<< "内存越界异常" << endl;

}

}

捕获空指针异常实测(写C++动态库时测试)可用,其他两个未测试

转载。原文连接:https://blog.csdn.net/sundan308/article/details/42077291

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