ceph/src/include/demangle.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2016 Allen Samuels <allen.samuels@sandisk.com>
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #ifndef CEPH_INCLUDE_DEMANGLE
  16 #define CEPH_INCLUDE_DEMANGLE
  17
  18 //// Stole this code from http://stackoverflow.com/questions/281818/unmangling-the-result-of-stdtype-infoname
  19 #ifdef __GNUG__
  20 #include <cstdlib>
  21 #include <memory>
  22 #include <cxxabi.h>
  23
  24 static std::string ceph_demangle(const char* name)
  25 {
  26   int status = -4; // some arbitrary value to eliminate the compiler warning
  27
  28   // enable c++11 by passing the flag -std=c++11 to g++
  29   std::unique_ptr<char, void(*)(void*)> res {
  30     abi::__cxa_demangle(name, NULL, NULL, &status),
  31     std::free
  32   };
  33
  34   return (status == 0) ? res.get() : name ;
  35 }
  36
  37 #else
  38
  39 // does nothing if not g++
  40 static std::string demangle(const char* name)
  41 {
  42   return name;
  43 }
  44
  45 #endif
  46
  47
  48 #endif