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+/******************************************************************************
+ * @file fast_math_functions_f16.h
+ * @brief Public header file for CMSIS DSP Library
+ * @version V1.10.0
+ * @date 08 July 2021
+ * Target Processor: Cortex-M and Cortex-A cores
+ ******************************************************************************/
+/*
+ * Copyright (c) 2010-2020 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.
+ */
+
+
+#ifndef _FAST_MATH_FUNCTIONS_F16_H_
+#define _FAST_MATH_FUNCTIONS_F16_H_
+
+#include "arm_math_types_f16.h"
+#include "arm_math_memory.h"
+
+#include "dsp/none.h"
+#include "dsp/utils.h"
+
+/* For sqrt_f32 */
+#include "dsp/fast_math_functions.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if defined(ARM_FLOAT16_SUPPORTED)
+
+ /**
+ * @addtogroup SQRT
+ * @{
+ */
+
+/**
+ @brief Floating-point square root function.
+ @param[in] in input value
+ @param[out] pOut square root of input value
+ @return execution status
+ - \ref ARM_MATH_SUCCESS : input value is positive
+ - \ref ARM_MATH_ARGUMENT_ERROR : input value is negative; *pOut is set to 0
+ */
+__STATIC_FORCEINLINE arm_status arm_sqrt_f16(
+ float16_t in,
+ float16_t * pOut)
+ {
+ float32_t r;
+ arm_status status;
+ status=arm_sqrt_f32((float32_t)in,&r);
+ *pOut=(float16_t)r;
+ return(status);
+ }
+
+
+/**
+ @} end of SQRT group
+ */
+
+/**
+ @brief Floating-point vector of log values.
+ @param[in] pSrc points to the input vector
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+ void arm_vlog_f16(
+ const float16_t * pSrc,
+ float16_t * pDst,
+ uint32_t blockSize);
+
+/**
+ @brief Floating-point vector of exp values.
+ @param[in] pSrc points to the input vector
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+ void arm_vexp_f16(
+ const float16_t * pSrc,
+ float16_t * pDst,
+ uint32_t blockSize);
+
+ /**
+ @brief Floating-point vector of inverse values.
+ @param[in] pSrc points to the input vector
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+ void arm_vinverse_f16(
+ const float16_t * pSrc,
+ float16_t * pDst,
+ uint32_t blockSize);
+
+ /**
+ @brief Arc tangent in radian of y/x using sign of x and y to determine right quadrant.
+ @param[in] y y coordinate
+ @param[in] x x coordinate
+ @param[out] result Result
+ @return error status.
+ */
+ arm_status arm_atan2_f16(float16_t y,float16_t x,float16_t *result);
+
+#endif /*defined(ARM_FLOAT16_SUPPORTED)*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ifndef _FAST_MATH_FUNCTIONS_F16_H_ */