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// Copyright 2014 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
#include <stdio.h>
#include <string>
#include <typeinfo>
#include <stdexcept>
using namespace std;
class MathError: public std::runtime_error {
public:
explicit MathError(const std::string& what) : std::runtime_error(what) { }
};
std::string _latest_err_msg;
int _result;
int cpp_adder(int a, int b)
{
if (a < b)
throw MathError ("a cannot be less than b.");
return a + b;
}
extern "C" {
const char* latest_err_msg() {
return _latest_err_msg.c_str();
}
int result() { return _result; }
int c_adder(int a, int b)
{
/*_1*/ try {
/*_2*/ try {
/*_3*/ try {
_result = cpp_adder(a, b);
/*+3a*/ } catch (MathError& e) {
if (string(e.what()).find("not-found-here") == string::npos)
throw MathError(string("Special exception caught: ") + typeid(e).name() + ": " + e.what());
else
throw;
/*+3b*/ } catch (exception& e) {
throw;
}
/*+2*/ } catch (exception& e) {
throw;
}
return 0;
/*+1*/ } catch (exception& e) {
_latest_err_msg = string(typeid(e).name()) + ": " + e.what();
return 1;
}
}
}
int main() {
int rc;
rc = c_adder(20, 35);
if (rc == 0)
printf("2nd call, result = %d\n", result());
else
printf("2nd call, sadface: %s\n", latest_err_msg());
return 0;
}
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