Gwennin / Exception

A simple C++ Exception class

Exception

A simple C++ Exception class.

Note: To add a fully support of theses exceptions add the '-rdynamic' option to you linker settings on your finnal project.

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Note 2: Only libc friends/compilers can build this project. 'backtace' & 'backtrace_symbols' functions are defined by libc.

##Using

#include <iostream>
#include <exception>
#include "Exception.h"

void bar(int i) {
    Exception * myE = new Exception("Your amazing message");
    throw e;
      // or
    throw new Exception("Your amazing message with priority", Warn);
      // or 
    throw new Exception("Your amazing message with an inner exception", e);
      // or
    throw new Exception("Your amazing message with an inner std exception", nex std::exception());
}

void foo() {
    bar(42);
}

int main(int argc, char** argv) {
    try {
       foo();
    }
    catch (Exception* e) {
        std::cout << "An Exception was throwed";
        
        if (e->getInnerException())
            std::cout << "with an inner exception:" << std::endl;
        else
            std::cout << ":" << std::endl;
        
        std::cout << e->getMessage() << std::endl << std::endl;
        
        for (int i = 0; i < e->getStackTrace().size(); i++)
            std::cout << "Stack Trace << i << ": " << e->getStackTrace[i] << std::endl;
        
        std::cout << std::endl;
        std::cout << "Thrower: " << e->getMethod() << std::endl;
        std::cout << "With criticity: " << e->getCriticity() << std::endl;
        
        // rethrow if needed
        if (e->getCriticity() > Warn)
            throw e;
    }

    return 0;
}

And to compile it: gcc -rdynamic prog.cpp -o prog

The criticity have 5 level :

• Unknown (0)
• Info (1)
• Warn (2)
• Alert (3)
• Critical (4)

The returned value of the 'Exception::getInnerException()' method have for type 'void*'. Use 'typeof' to check the real type, 'Exception' or 'std::exception'.