chromium/media/cast/common/mod_util.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_CAST_COMMON_MOD_UTIL_H_
#define MEDIA_CAST_COMMON_MOD_UTIL_H_

#include "base/check.h"

namespace media {
namespace cast {

// MAP is a map<uint??, ...> where the unsigned integer is
// assumed to wrap around, but only a small range is used at a time.
// Return the oldest entry in the map.
template<class MAP>
typename MAP::iterator ModMapOldest(MAP* map) { … }

// MAP is a map<uint??, ...> where the unsigned integer is
// assumed to wrap around, but only a small range is used at a time.
// Returns the previous entry in the map.
template<class MAP>
typename MAP::iterator ModMapPrevious(MAP* map, typename MAP::iterator i) { … }

}  // namespace cast
}  // namespace media

#endif  // MEDIA_CAST_COMMON_MOD_UTIL_H_