exceptions
http://www2.research.att.com/~bs/bs_faq2.html#resume http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2106.html http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2061.html
http://stackoverflow.com/questions/1569726/difference-stdruntime-error-vs-stdexception http://www.deitel.com/articles/cplusplus_tutorials/20060325/cplusplustutorial_DivideByZero_Page2.html http://www.linuxtopia.org/online_books/programming_books/c++_practical_programming/c++_practical_programming_029.html http://www.fredosaurus.com/notes-cpp/exceptions/exception-test.html http://www.java2s.com/Tutorial/Cpp/0120__Exceptions/Throwyourownexceptionclassbasedonruntimeerror.htm http://stackoverflow.com/questions/577270/creating-new-exception-in-c http://stackoverflow.com/questions/9267674/how-can-i-modify-the-what-string-of-a-c-runtime-error http://stackoverflow.com/questions/7491877/c-catch-runtime-error http://stackoverflow.com/questions/2924058/confused-about-stdruntime-error-vs-stdlogic-error http://stackoverflow.com/questions/8112216/runtime-error-expecting-a http://zhidao.baidu.com/question/313519780.html http://stackoverflow.com/questions/6864011/how-can-stdruntime-errorruntime-errorconst-stdstring-meet-stdexceptio