79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
// Copyright Antony Polukhin, 2016-2019.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/config.hpp>
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//[getting_started_class_traced
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#include <boost/stacktrace.hpp>
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#include <boost/exception/all.hpp>
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typedef boost::error_info<struct tag_stacktrace, boost::stacktrace::stacktrace> traced;
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//]
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//[getting_started_class_with_trace
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template <class E>
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void throw_with_trace(const E& e) {
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throw boost::enable_error_info(e)
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<< traced(boost::stacktrace::stacktrace());
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}
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//]
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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BOOST_NOINLINE void oops(int i);
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BOOST_NOINLINE void foo(int i);
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BOOST_NOINLINE void bar(int i);
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#include <stdexcept>
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BOOST_NOINLINE void oops(int i) {
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//[getting_started_throwing_with_trace
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if (i >= 4)
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throw_with_trace(std::out_of_range("'i' must be less than 4 in oops()"));
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if (i <= 0)
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throw_with_trace(std::logic_error("'i' must be greater than zero in oops()"));
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//]
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foo(i);
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std::exit(1);
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}
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#include <boost/array.hpp>
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BOOST_NOINLINE void bar(int i) {
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boost::array<int, 5> a = {{0, 0, 0, 0, 0}};
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if (i < 5) {
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if (i >= 0) {
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foo(a[i]);
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} else {
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oops(i);
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}
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}
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std::exit(2);
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}
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BOOST_NOINLINE void foo(int i) {
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bar(--i);
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}
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#include <iostream>
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int main() {
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//[getting_started_catching_trace
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try {
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foo(5); // testing assert handler
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} catch (const std::exception& e) {
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std::cerr << e.what() << '\n';
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const boost::stacktrace::stacktrace* st = boost::get_error_info<traced>(e);
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if (st) {
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std::cerr << *st << '\n'; /*<-*/ return 0; /*->*/
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} /*<-*/ return 3; /*->*/
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}
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//]
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return 5;
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}
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