#include <iostream>

 #include <string>

 #define LEMON_ASSERT_ABORT 0

 #include <error.h>

 using namespace std;

 void parse_line() {

   throw lemon::DataFormatError("Syntax error");

 }

 void parse_file(string fn) {

   try {

     parse_line();

   }

   catch(lemon::DataFormatError &e) {

     e.set_file(fn);

     e.set_line(5);

     throw;

   }

 }

 void fail_assert();

 int main() {

   try {

     parse_file("input.txt");

   }

   catch(exception &e) {

     cerr << "Exception caught: " << endl;

     cerr << e.what() << endl;

   }

   try {

     fail_assert();

   }

   catch(exception &e) {

     cerr << "Exception caught: " << endl;

     cerr << e.what() << endl;

   }

   // assert(1==0);

   LEMON_ASSERT(1==0, "Ellentmondas");

   LEMON_FIXME("Nincs kesz");

 }

 #undef LEMON_ASSERT_HANDLER

 #define LEMON_ASSERT_HANDLER ::lemon::assert_fail_throw

 #include <error.h>

 void fail_assert() {

   LEMON_ASSERT(2*2==5, "Marson vagyunk");

 }