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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LE_FX_ENGINE_DSP_CORE_BASIC_H_
#define LE_FX_ENGINE_DSP_CORE_BASIC_H_
#include <limits.h>
#include "common/core/math.h"
#include "common/core/types.h"
namespace le_fx {
namespace sigmod {
// Searchs for the interval that contains <x> using a divide-and-conquer
// algorithm.
// X[]: a vector of sorted values (X[i+1] > X[i])
// x: a value
// StartIndex: the minimum searched index
// EndIndex: the maximum searched index
// returns: the index <i> that satisfies: X[i] <= x <= X[i+1] &&
// StartIndex <= i <= (EndIndex-1)
template <typename T>
int SearchIndex(const T x_data[],
T x,
int start_index,
int end_index);
} // namespace sigmod
} // namespace le_fx
#include "dsp/core/basic-inl.h"
#endif // LE_FX_ENGINE_DSP_CORE_BASIC_H_
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