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// Copyright 2015 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 PDFIUM_THIRD_PARTY_BASE_STL_UTIL_H_
#define PDFIUM_THIRD_PARTY_BASE_STL_UTIL_H_
#include "third_party/base/numerics/safe_conversions.h"
namespace pdfium {
// Test to see if a set, map, hash_set or hash_map contains a particular key.
// Returns true if the key is in the collection.
template <typename Collection, typename Key>
bool ContainsKey(const Collection& collection, const Key& key) {
return collection.find(key) != collection.end();
}
// Test to see if a collection like a vector contains a particular value.
// Returns true if the value is in the collection.
template <typename Collection, typename Value>
bool ContainsValue(const Collection& collection, const Value& value) {
return std::find(collection.begin(), collection.end(), value) !=
collection.end();
}
// Convenience routine for "int-fected" code, so that the stl collection
// size_t size() method return values will be checked.
template <typename ResultType, typename Collection>
ResultType CollectionSize(const Collection& collection) {
return pdfium::base::checked_cast<ResultType, size_t>(collection.size());
}
} // namespace pdfium
#endif // PDFIUM_THIRD_PARTY_BASE_STL_UTIL_H_
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