| /* |
| * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <stdint.h> |
| |
| // |
| // WebRtcSpl_SqrtFloor(...) |
| // |
| // Returns the square root of the input value |value|. The precision of this |
| // function is rounding down integer precision, i.e., sqrt(8) gives 2 as answer. |
| // If |value| is a negative number then 0 is returned. |
| // |
| // Algorithm: |
| // |
| // An iterative 4 cylce/bit routine |
| // |
| // Input: |
| // - value : Value to calculate sqrt of |
| // |
| // Return value : Result of the sqrt calculation |
| // |
| int32_t WebRtcSpl_SqrtFloor(int32_t value); |
