error.cxx

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
#include "AthContainers/tools/error.h"
#ifdef __GXX_ABI_VERSION
# include <cstdlib>
# include <cxxabi.h>
#endif
#include <iomanip>
#include <iostream>
#include <sstream>
 
 
#ifdef XAOD_STANDALONE
 
 
namespace AthContainers_detail {
 
 
void reportErrorStandalone (const std::string& context,
                            const std::string& file, int line,
                            const std::string& msg) {
 
  // Make sure that the message's source/location is not longer than a
  // pre-set maximum value.
  std::string source (context);
  static constexpr std::size_t CONTEXT_WIDTH = 18;
  if (source.size() > CONTEXT_WIDTH) {
    source = source.substr(0, CONTEXT_WIDTH - 3);
    source += "...";
  }
 
  // Print the message to stdout/std::cout.
  std::ostringstream output;
  output << std::setiosflags(std::ios::left)
         << std::setw(CONTEXT_WIDTH) << source << "  ERROR "
         << file << ":" << line << ": "
         << msg;
  std::cout << output.str() << std::endl;
  return;
}
 
 
std::string typeinfoName (const std::type_info& ti)
{
  // In case the "translation" is not successful, the fallback is to
  // keep the original, mangled name:
  std::string result = ti.name();
 
#ifdef __GXX_ABI_VERSION
  // Try to demangle the name:
  int status;
  char* typeName = abi::__cxa_demangle( ti.name(), 0, 0, &status );
  if (status == 0) {
    // Take the demangled name, and free up the memory allocated in
    // the process:
    result = typeName;
    ::free( typeName );
  }
#endif
 
  return result;
}
 
 
} // namespace AthContainers_detail
 
 
#endif // XAOD_STANDALONE