ceph/src/boost/boost/stacktrace/frame.hpp

   1 // Copyright Antony Polukhin, 2016-2017.
   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 #ifndef BOOST_STACKTRACE_FRAME_HPP
   8 #define BOOST_STACKTRACE_FRAME_HPP
   9
  10 #include <boost/config.hpp>
  11 #ifdef BOOST_HAS_PRAGMA_ONCE
  12 #   pragma once
  13 #endif
  14
  15 #include <iosfwd>
  16 #include <string>
  17
  18 #include <boost/core/explicit_operator_bool.hpp>
  19
  20 #include <boost/stacktrace/safe_dump_to.hpp> // boost::stacktrace::detail::native_frame_ptr_t
  21
  22 #include <boost/stacktrace/detail/frame_decl.hpp>
  23 #include <boost/stacktrace/detail/push_options.h>
  24
  25 namespace boost { namespace stacktrace {
  26
  27 /// Comparison operators that provide platform dependant ordering and have O(1) complexity; are Async-Handler-Safe.
  28 BOOST_CONSTEXPR inline bool operator< (const frame& lhs, const frame& rhs) BOOST_NOEXCEPT { return lhs.address() < rhs.address(); }
  29 BOOST_CONSTEXPR inline bool operator> (const frame& lhs, const frame& rhs) BOOST_NOEXCEPT { return rhs < lhs; }
  30 BOOST_CONSTEXPR inline bool operator<=(const frame& lhs, const frame& rhs) BOOST_NOEXCEPT { return !(lhs > rhs); }
  31 BOOST_CONSTEXPR inline bool operator>=(const frame& lhs, const frame& rhs) BOOST_NOEXCEPT { return !(lhs < rhs); }
  32 BOOST_CONSTEXPR inline bool operator==(const frame& lhs, const frame& rhs) BOOST_NOEXCEPT { return lhs.address() == rhs.address(); }
  33 BOOST_CONSTEXPR inline bool operator!=(const frame& lhs, const frame& rhs) BOOST_NOEXCEPT { return !(lhs == rhs); }
  34
  35 /// Fast hashing support, O(1) complexity; Async-Handler-Safe.
  36 inline std::size_t hash_value(const frame& f) BOOST_NOEXCEPT {
  37     return reinterpret_cast<std::size_t>(f.address());
  38 }
  39
  40 /// Outputs stacktrace::frame in a human readable format to string; unsafe to use in async handlers.
  41 BOOST_STACKTRACE_FUNCTION std::string to_string(const frame& f);
  42
  43 /// Outputs stacktrace::frame in a human readable format to output stream; unsafe to use in async handlers.
  44 template <class CharT, class TraitsT>
  45 std::basic_ostream<CharT, TraitsT>& operator<<(std::basic_ostream<CharT, TraitsT>& os, const frame& f) {
  46     return os << boost::stacktrace::to_string(f);
  47 }
  48
  49 }} // namespace boost::stacktrace
  50
  51 /// @cond
  52
  53 #include <boost/stacktrace/detail/pop_options.h>
  54
  55 #ifndef BOOST_STACKTRACE_LINK
  56 #   if defined(BOOST_STACKTRACE_USE_NOOP)
  57 #       include <boost/stacktrace/detail/frame_noop.ipp>
  58 #   elif defined(BOOST_MSVC) || defined(BOOST_STACKTRACE_USE_WINDBG) || defined(BOOST_STACKTRACE_USE_WINDBG_CACHED)
  59 #       include <boost/stacktrace/detail/frame_msvc.ipp>
  60 #   else
  61 #       include <boost/stacktrace/detail/frame_unwind.ipp>
  62 #   endif
  63 #endif
  64 /// @endcond
  65
  66
  67 #endif // BOOST_STACKTRACE_FRAME_HPP