cc/base/scoped_ptr_algorithm.h

// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_BASE_SCOPED_PTR_ALGORITHM_H_
#define CC_BASE_SCOPED_PTR_ALGORITHM_H_

namespace cc {

// ScopedContainers need to implement a swap() method since they do not allow
// assignment to their iterators.
template <class ForwardIterator, class Predicate, class ScopedContainer>
ForwardIterator remove_if(
    ScopedContainer* container,
    ForwardIterator first,
    ForwardIterator last,
    Predicate predicate) {
  ForwardIterator result = first;
  for (; first != last; ++first) {
    if (!predicate(*first)) {
      container->swap(first, result);
      ++result;
    }
  }
  return result;
}

}  // namespace cc

#endif  // CC_BASE_SCOPED_PTR_ALGORITHM_H_