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// Copyright Antony Polukhin, 2016-2023.
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/config.hpp>
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//[getting_started_class_traced
#include <boost/stacktrace.hpp>
#include <boost/exception/all.hpp>
typedef boost::error_info<struct tag_stacktrace, boost::stacktrace::stacktrace> traced;
//]
//[getting_started_class_with_trace
template <class E>
void throw_with_trace(const E& e) {
throw boost::enable_error_info(e)
<< traced(boost::stacktrace::stacktrace());
}
//]
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
BOOST_NOINLINE void oops(int i);
BOOST_NOINLINE void foo(int i);
BOOST_NOINLINE void bar(int i);
#include <stdexcept>
BOOST_NOINLINE void oops(int i) {
//[getting_started_throwing_with_trace
if (i >= 4)
throw_with_trace(std::out_of_range("'i' must be less than 4 in oops()"));
if (i <= 0)
throw_with_trace(std::logic_error("'i' must be greater than zero in oops()"));
//]
foo(i);
std::exit(1);
}
#include <boost/array.hpp>
BOOST_NOINLINE void bar(int i) {
boost::array<int, 5> a = {{0, 0, 0, 0, 0}};
if (i < 5) {
if (i >= 0) {
foo(a[i]);
} else {
oops(i);
}
}
std::exit(2);
}
BOOST_NOINLINE void foo(int i) {
bar(--i);
}
#include <iostream>
int main() {
//[getting_started_catching_trace
try {
foo(5); // testing assert handler
} catch (const std::exception& e) {
std::cerr << e.what() << '\n';
const boost::stacktrace::stacktrace* st = boost::get_error_info<traced>(e);
if (st) {
std::cerr << *st << '\n'; /*<-*/ return 0; /*->*/
} /*<-*/ return 3; /*->*/
}
//]
return 5;
}
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