1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef STATIC_ASSERT_H_included 18 #define STATIC_ASSERT_H_included 19 20 /** 21 * Similar to C++0x's static_assert. Message argument must be a valid identifier, not a string. 22 * Called COMPILE_ASSERT in Google, COMPILE_TIME_ASSERT in other places. This is the usual Google 23 * implementation. 24 */ 25 #define STATIC_ASSERT(exp, msg) typedef StaticAssert<(bool(exp))> msg[bool(exp) ? 1 : -1] 26 template <bool> struct StaticAssert {}; 27 28 #endif // STATIC_ASSERT_H_included 29