map.h

//----------------------------------------------------------------------------//
//                                                                            //
// ozz-animation is hosted at http://github.com/guillaumeblanc/ozz-animation  //
// and distributed under the MIT License (MIT).                               //
//                                                                            //
// Copyright (c) Guillaume Blanc                                              //
//                                                                            //
// Permission is hereby granted, free of charge, to any person obtaining a    //
// copy of this software and associated documentation files (the "Software"), //
// to deal in the Software without restriction, including without limitation  //
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//----------------------------------------------------------------------------//
 
#ifndef OZZ_OZZ_BASE_CONTAINERS_MAP_H_
#define OZZ_OZZ_BASE_CONTAINERS_MAP_H_
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4702)  // warning C4702: unreachable code
#endif                           // _MSC_VER
 
#include <cstring>
#include <map>
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif  // _MSC_VER
 
#include "ozz/base/containers/std_allocator.h"
 
namespace ozz {
// Redirects std::map to ozz::map in order to replace std default allocator by
// ozz::StdAllocator.
template <class _Key, class _Ty, class _Pred = std::less<_Key>,
          class _Allocator = ozz::StdAllocator<std::pair<const _Key, _Ty>>>
using map = std::map<_Key, _Ty, _Pred, _Allocator>;
 
// Implements a string comparator that can be used by std algorithm like maps.
struct str_less {
  bool operator()(const char* const& _left, const char* const& _right) const {
    return strcmp(_left, _right) < 0;
  }
};
 
// Specializes std::map to use c-string as a key.
template <class _Ty, class _Allocator =
                         ozz::StdAllocator<std::pair<const char* const, _Ty>>>
using cstring_map = std::map<const char*, _Ty, str_less, _Allocator>;
 
// Redirects std::multimap to ozz::MultiMap in order to replace std default
// allocator by ozz::StdAllocator.
template <class _Key, class _Ty, class _Pred = std::less<_Key>,
          class _Allocator = ozz::StdAllocator<std::pair<const _Key, _Ty>>>
using multimap = std::multimap<_Key, _Ty, _Pred, _Allocator>;
}  // namespace ozz
#endif  // OZZ_OZZ_BASE_CONTAINERS_MAP_H_