RenderCore/Base/RCArgumentPrecondition.h (3 lines of code) (raw):

/* * Copyright (c) 2014-present, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. * */ #pragma once #define RCArgumentPreconditionCheckIf(condition, message) do { if (!(condition)) { @throw [NSException exceptionWithName:NSInvalidArgumentException reason:(message) userInfo:nil]; } } while (0) #define RCInternalConsistencyCheckIf(condition, message) do { if (!(condition)) { @throw [NSException exceptionWithName:NSInternalInconsistencyException reason:(message) userInfo:nil]; } } while (0)