ceph/src/boost/libs/stacktrace/example/trace_addresses.cpp

   1 // Copyright Antony Polukhin, 2016-2022.
   2 //
   3 // Distributed under the Boost Software License, Version 1.0. (See
   4 // accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include <boost/config.hpp>
   8
   9 #ifdef BOOST_NO_CXX11_RANGE_BASED_FOR
  10 #include <boost/stacktrace.hpp>
  11 #include <iostream>     // std::cout
  12
  13 namespace bs = boost::stacktrace;
  14 void dump_compact(const bs::stacktrace& st) {
  15     for (unsigned i = 0; i < st.size(); ++i) {
  16         bs::frame frame = st[i];
  17         std::cout << frame.address() << ',';
  18     }
  19
  20     std::cout << std::endl;
  21 }
  22 #else
  23 //[getting_started_trace_addresses
  24 #include <boost/stacktrace.hpp>
  25 #include <iostream>     // std::cout
  26
  27 namespace bs = boost::stacktrace;
  28 void dump_compact(const bs::stacktrace& st) {
  29     for (bs::frame frame: st) {
  30         std::cout << frame.address() << ',';
  31     }
  32
  33     std::cout << std::endl;
  34 }
  35 //]
  36 #endif
  37
  38 BOOST_NOINLINE boost::stacktrace::stacktrace rec1(int i);
  39 BOOST_NOINLINE boost::stacktrace::stacktrace rec2(int i);
  40
  41 BOOST_NOINLINE boost::stacktrace::stacktrace rec1(int i) {
  42     if (i < 5) {
  43         if (!i) return boost::stacktrace::stacktrace();
  44         return rec2(--i);
  45     }
  46
  47     return rec2(i - 2);
  48 }
  49
  50 BOOST_NOINLINE boost::stacktrace::stacktrace rec2(int i) {
  51     if (i < 5) {
  52         if (!i) return boost::stacktrace::stacktrace();
  53         return rec2(--i);
  54     }
  55
  56     return rec2(i - 2);
  57 }
  58
  59 int main() {
  60     dump_compact(rec1(8));
  61 }
  62
  63