有几年没用C++了,好些细节的地方都记不清了。现在需要用C++操作wxWidgets做一个系统软件。
想起C++的异常捕获和处理,与Java和C#有些不同的地方,C++中一般全部
用自己定义的异常类。
<span style="font-size:14px;">#include <iostream>
#include <sstream>
using namespace std;
class Exception {
private:
string opt_info;
const char * const err_info;
const char * const throw_file;
uint32_t throw_line;
const char * const throw_func;
public:
Exception(const char * const info = 0,const char * const throw_file = "",uint32_t throw_line = 0,const char * const throw_func = ""):err_info(info),throw_file(throw_file),throw_line(throw_line),throw_func(throw_func){}
string info(){
stringstream strStream;
strStream<<throw_line;
opt_info = string(err_info) + " File: " + throw_file + "; Line: " + strStream.str() + "; Function: " + throw_func;
return opt_info;
}
};
void test(){
//cout<<"Error: "<<__FILE__<<"\tLine: "<<__LINE__<<"\tFunc: "<<__FUNCTION__<<endl;
throw Exception("Custom Exception !",__FILE__,__LINE__,__FUNCTION__);
}
int main()
{
cout << "Test Exception !" << endl;
try{
cout<<"Do Exception !"<<endl;
test();
}catch(Exception exe1){
cerr<<"Catch Exception : "<<exe1.info()<<endl;
}
cout<<"Test Finish!"<<endl;
return 0;
}</span>

本文介绍了一种在 C++ 中实现自定义异常处理的方法,通过一个具体的代码示例展示了如何创建并使用自定义异常类来提高程序的健壮性和错误处理能力。
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