text: /*****************************************************************************
    Copyright (c) 2014, Intel Corp.
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  *****************************************************************************
  * Contents: Native high-level C interface to LAPACK function stgsyl
  * Author: Intel Corporation
  *****************************************************************************/
  
  #include "lapacke_utils.h"
  
  lapack_int LAPACKE_stgsyl( int matrix_layout, char trans, lapack_int ijob,
                             lapack_int m, lapack_int n, const float* a,
                             lapack_int lda, const float* b, lapack_int ldb,
                             float* c, lapack_int ldc, const float* d,
                             lapack_int ldd, const float* e, lapack_int lde,
                             float* f, lapack_int ldf, float* scale, float* dif )
  {
      lapack_int info = 0;
      lapack_int lwork = -1;
      lapack_int* iwork = NULL;
      float* work = NULL;
      float work_query;
      if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
          LAPACKE_xerbla( "LAPACKE_stgsyl", -1 );
          return -1;
      }
  #ifndef LAPACK_DISABLE_NAN_CHECK
      if( LAPACKE_get_nancheck() ) {
          /* Optionally check input matrices for NaNs */
          if( LAPACKE_sge_nancheck( matrix_layout, m, m, a, lda ) ) {
              return -6;
          }
          if( LAPACKE_sge_nancheck( matrix_layout, n, n, b, ldb ) ) {
              return -8;
          }
          if( LAPACKE_sge_nancheck( matrix_layout, m, n, c, ldc ) ) {
              return -10;
          }
          if( LAPACKE_sge_nancheck( matrix_layout, m, m, d, ldd ) ) {
              return -12;
          }
          if( LAPACKE_sge_nancheck( matrix_layout, n, n, e, lde ) ) {
              return -14;
          }
          if( LAPACKE_sge_nancheck( matrix_layout, m, n, f, ldf ) ) {
              return -16;
          }
      }
  #endif
      /* Allocate memory for working array(s) */
      iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,m+n+6) );
      if( iwork == NULL ) {
          info = LAPACK_WORK_MEMORY_ERROR;
          goto exit_level_0;
      }
      /* Query optimal working array(s) size */
      info = LAPACKE_stgsyl_work( matrix_layout, trans, ijob, m, n, a, lda, b, ldb,
                                  c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
                                  &work_query, lwork, iwork );
      if( info != 0 ) {
          goto exit_level_1;
      }
      lwork = (lapack_int)work_query;
      /* Allocate memory for work arrays */
      work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
      if( work == NULL ) {
          info = LAPACK_WORK_MEMORY_ERROR;
          goto exit_level_1;
      }
      /* Call middle-level interface */
      info = LAPACKE_stgsyl_work( matrix_layout, trans, ijob, m, n, a, lda, b, ldb,
                                  c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
                                  work, lwork, iwork );
      /* Release memory and exit */
      LAPACKE_free( work );
  exit_level_1:
      LAPACKE_free( iwork );
  exit_level_0:
      if( info == LAPACK_WORK_MEMORY_ERROR ) {
          LAPACKE_xerbla( "LAPACKE_stgsyl", info );
      }
      return info;
  }
  