TheRock/rocm-libraries/projects/hipsparse/library/include/internal/generic/hipsparse_rot.h

/*! \file */
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#ifndef HIPSPARSE_ROT_H
#define HIPSPARSE_ROT_H

#ifdef __cplusplus
extern "C" {
#endif

/*! \ingroup generic_module
*  \brief Apply the Givens rotation to a dense and a sparse vector.
*
*  \details
*  \p hipsparseRot applies the Givens rotation matrix \f$G\f$ to the sparse vector
*  \f$x\f$ and the dense vector \f$y\f$, where
*  \f[
*    G = \begin{pmatrix} c & s \\ -s & c \end{pmatrix}
*  \f]
*
*  \code{.c}
*      for(i = 0; i < nnz; ++i)
*      {
*          x_tmp = x_val[i];
*          y_tmp = y[x_ind[i]];
*
*          x_val[i]    = c * x_tmp + s * y_tmp;
*          y[x_ind[i]] = c * y_tmp - s * x_tmp;
*      }
*  \endcode
*
*  \p hipsparseRot supports the following uniform precision data types for the sparse and dense vectors \f$x\f$ and
*  \f$y\f$ and compute types for the scalars \f$c\f$ and \f$s\f$.
*
*  \par Uniform Precisions:
*  <table>
*  <caption id="rot_uniform">Uniform Precisions</caption>
*  <tr><th>X / Y / compute_type
*  <tr><td>HIP_R_32F
*  <tr><td>HIP_R_64F
*  <tr><td>HIP_C_32F
*  <tr><td>HIP_C_64F
*  </table>
*
*  \deprecated
*  This function is deprecated when using the CUDA backend (CUDA 12.0+) and will be 
*  removed in CUDA 13.0. This deprecation does not apply to the ROCm backend.
*
*  @param[in]
*  handle      handle to the hipSPARSE library context queue.
*  @param[in]
*  c_coeff     pointer to the cosine element of \f$G\f$, which can be on the host or device.
*  @param[in]
*  s_coeff     pointer to the sine element of \f$G\f$, which can be on the host or device.
*  @param[inout]
*  vecX        sparse vector descriptor \f$x\f$.
*  @param[inout]
*  vecY        dense vector descriptor \f$y\f$.
*
*  \retval HIPSPARSE_STATUS_SUCCESS the operation completed successfully.
*  \retval HIPSPARSE_STATUS_NOT_INITIALIZED \p handle is not initialized.
*  \retval HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p c_coeff, \p s_coeff, \p vecX, or \p vecY is nullptr,
*          or the vector sizes or data types are incompatible.
*/
#if(!defined(CUDART_VERSION) || (CUDART_VERSION >= 11000 && CUDART_VERSION < 14000))
DEPRECATED_CUDA_12000("The routine will be removed in a future CUDA release")
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseRot(hipsparseHandle_t     handle,
                               const void*           c_coeff,
                               const void*           s_coeff,
                               hipsparseSpVecDescr_t vecX,
                               hipsparseDnVecDescr_t vecY);
#endif

#ifdef __cplusplus
}
#endif

#endif /* HIPSPARSE_ROT_H */