text: /* ************************************************************************
   * Copyright 2016 Advanced Micro Devices, Inc.
   *
   * ************************************************************************ */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <vector>
  
  #include "cblas_interface.h"
  #include "hipblas.hpp"
  #include "norm.h"
  #include "unit.h"
  #include "utility.h"
  #include <complex.h>
  
  using namespace std;
  
  /* ============================================================================================ */
  
  template <typename T, typename U = T>
  hipblasStatus_t testing_scal(Arguments argus)
  {
  
      int N    = argus.N;
      int incx = argus.incx;
  
      hipblasStatus_t status = HIPBLAS_STATUS_SUCCESS;
  
      // argument sanity check, quick return if input parameters are invalid before allocating invalid
      // memory
      if(N < 0)
      {
          status = HIPBLAS_STATUS_INVALID_VALUE;
          return status;
      }
      else if(incx < 0)
      {
          status = HIPBLAS_STATUS_INVALID_VALUE;
          return status;
      }
  
      int sizeX = N * incx;
      U   alpha = argus.alpha;
  
      // Naming: dX is in GPU (device) memory. hK is in CPU (host) memory, plz follow this practice
      vector<T> hx(sizeX);
      vector<T> hz(sizeX);
      T*        dx;
  
      double gpu_time_used, cpu_time_used;
      double rocblas_error = 0.0;
  
      hipblasHandle_t handle;
  
      hipblasCreate(&handle);
  
      // allocate memory on device
      CHECK_HIP_ERROR(hipMalloc(&dx, sizeX * sizeof(T)));
  
      // Initial Data on CPU
      srand(1);
      hipblas_init<T>(hx, 1, N, incx);
  
      // copy vector is easy in STL; hz = hx: save a copy in hz which will be output of CPU BLAS
      hz = hx;
  
      // copy data from CPU to device, does not work for incx != 1
      CHECK_HIP_ERROR(hipMemcpy(dx, hx.data(), sizeof(T) * N * incx, hipMemcpyHostToDevice));
  
      /* =====================================================================
           ROCBLAS
      =================================================================== */
      status = hipblasScal<T, U>(handle, N, &alpha, dx, incx);
      if(status != HIPBLAS_STATUS_SUCCESS)
      {
          CHECK_HIP_ERROR(hipFree(dx));
          hipblasDestroy(handle);
          return status;
      }
  
      // copy output from device to CPU
      CHECK_HIP_ERROR(hipMemcpy(hx.data(), dx, sizeof(T) * N * incx, hipMemcpyDeviceToHost));
  
      if(argus.unit_check)
      {
  
          /* =====================================================================
                      CPU BLAS
          =================================================================== */
          cblas_scal<T, U>(N, alpha, hz.data(), incx);
  
          // enable unit check, notice unit check is not invasive, but norm check is,
          // unit check and norm check can not be interchanged their order
          if(argus.unit_check)
          {
              unit_check_general<T>(1, N, incx, hz.data(), hx.data());
          }
  
      } // end of if unit check
  
      //  BLAS_1_RESULT_PRINT
  
      CHECK_HIP_ERROR(hipFree(dx));
      hipblasDestroy(handle);
      return HIPBLAS_STATUS_SUCCESS;
  }
  