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/* ----------------------------------------------------------------------
* Project: CMSIS DSP Library
* Title: arm_logsumexp_f32.c
* Description: LogSumExp
*
* $Date: 23 April 2021
* $Revision: V1.9.0
*
* Target Processor: Cortex-M and Cortex-A cores
* -------------------------------------------------------------------- */
/*
* Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* 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
*
* 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.
*/
#include "dsp/statistics_functions.h"
#include <limits.h>
#include <math.h>
/**
* @addtogroup LogSumExp
* @{
*/
/**
* @brief Dot product with log arithmetic
*
* Vectors are containing the log of the samples
*
* @param[in] *pSrcA points to the first input vector
* @param[in] *pSrcB points to the second input vector
* @param[in] blockSize number of samples in each vector
* @param[in] *pTmpBuffer temporary buffer of length blockSize
* @return The log of the dot product.
*
*/
float32_t arm_logsumexp_dot_prod_f32(const float32_t * pSrcA,
const float32_t * pSrcB,
uint32_t blockSize,
float32_t *pTmpBuffer)
{
float32_t result;
arm_add_f32((float32_t*)pSrcA, (float32_t*)pSrcB, pTmpBuffer, blockSize);
result = arm_logsumexp_f32(pTmpBuffer, blockSize);
return(result);
}
/**
* @} end of LogSumExp group
*/
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