* throw.cpp * * Created on: 2013-9-30 * Author: Administrator */ #include<iostream.h> #if 0 void fun(int c) { try { if(c==0) throw c;//抛出整型 if(c==1) throw 'y';//抛出字符 if(c==2) throw 5.4321;//抛出浮点型 } catch (int n) { cout << "捕获到整形异常n=" <...
编译器编译上面 C++ 代码时会输出: prog.cpp: In function ‘int main()’: prog.cpp:20:5: warning: exception of type ‘Derived’ will be caught catch (Derived d) { ^ prog.cpp:17:5: warning: by earlier handler for ‘Base’ catch (Base b) { 运行时会输出: 捕捉到 Base 异常 如果将上...
还有个app.cpp生成可执行文件: #include"lib.h"#include<typeinfo>#include<iostream>intmain(){try{Throw();}catch(constError&e){std::cerr<<"Error:"<<e.what()<<'\n';}catch(conststd::exception&e){std::cerr<<"stdex:"<<e.what()<<'\n';}} 再来两行代码分别编译动态库和可执行文件: ...
// exception_specification.cpp// compile with: /EHs#include<stdio.h>voidhandler(){ printf_s("in handler\n"); }voidf1(void)throw(int){ printf_s("About to throw 1\n");if(1)throw1; }voidf5(void)throw(){try{ f1(); }catch(...) { handler(); } }// invalid, doesn't handle ...
// exception_specification.cpp// compile with: /EHs#include<stdio.h>voidhandler(){ printf_s("in handler\n"); }voidf1(void)throw(int){ printf_s("About to throw 1\n");if(1)throw1; }voidf5(void)throw(){try{ f1(); }catch(...) { handler(); } }// invalid, doesn't handle ...
参考https://www.tutorialspoint.com/cplusplus/cpp_exceptions_handling.htm C++ Standard Exceptions C++ provides a list of standard exceptions defined in <exception> which we can use in our programs. These are arranged in a parent-child class hierarchy shown below − ...
1.http://www.learncpp.com/cpp-tutorial/153-exceptions-functions-and-stack-unwinding/ 2.http://www.gotw.ca/publications/mill22.htm 3.http://stackoverflow.com/questions/88573/should-i-use-an-exception-specifier-in-c/88905#88905 4.http://stackoverflow.com/questions/10787766/when-should-i-real...
参考https://www.tutorialspoint.com/cplusplus/cpp_exceptions_handling.htm C++ Standard Exceptions C++ provides a list of standard exceptions defined in <exception> which we can use in our programs. These are arranged in a parent-child class hierarchy shown below − ...
```cpp void divide(int a, int b) { if (b == 0) { throw "Divide by zero exception"; } //其他操作... } ``` 在上述代码中,如果b为零,则会抛出一个字符串类型的异常“Divide by zero exception”。该异常可以被上层调用者的catch块捕获并处理。 2.自定义异常类 我们也可以自定义一个派生自...
若要在 C++ 中實作例外狀況處理,請使用 try、 throw 和catch 運算式。首先,使用 try 區塊來封入一或多個可能會擲回例外狀況的語句。運算式 throw 表示例外狀況通常是在區塊中 try 發生錯誤。 您可以使用任何類型的 物件作為運算式的操作 throw 數。 這個物件通常用來傳達與錯誤有關的資訊。 在大部分情況下,...