1 /* 2 * Util.h 3 * 4 * This source file is part of the FoundationDB open source project 5 * 6 * Copyright 2013-2018 Apple Inc. and the FoundationDB project authors 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 #ifndef _FLOW_UTIL_H_ 22 #define _FLOW_UTIL_H_ 23 #pragma once 24 25 #include <algorithm> 26 27 template <typename C> swapAndPop(C * container,int index)28void swapAndPop(C* container, int index) { 29 if (index != container->size()-1) { 30 using std::swap; 31 swap((*container)[index], container->back()); 32 } 33 34 container->pop_back(); 35 } 36 37 #endif // _FLOW_UTIL_H_ 38