| Romain Guy | 4bb9420 | 2010-10-12 15:59:26 -0700 | [diff] [blame^] | 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 ANDROID_UI_COMPARE_H |
| 18 | #define ANDROID_UI_COMPARE_H |
| 19 | |
| 20 | #include <cmath> |
| 21 | |
| 22 | #define EPSILON 0.00001f |
| 23 | |
| 24 | #define almost(u, v) (fabs((u) - (v)) < EPSILON) |
| 25 | |
| 26 | /** |
| 27 | * Compare floats. |
| 28 | */ |
| 29 | #define compare(a) \ |
| 30 | if (a < rhs.a) return true; \ |
| 31 | if (almost(a, rhs.a)) |
| 32 | |
| 33 | /** |
| 34 | * Compare integers. |
| 35 | */ |
| 36 | #define compareI(a) \ |
| 37 | if (a < rhs.a) return true; \ |
| 38 | if (a == rhs.a) |
| 39 | |
| 40 | #endif // ANDROID_UI_COMPARE_H |