cblas_dsyr2k()

void API_SUFFIX() cblas_dsyr2k	(	const CBLAS_LAYOUT	layout,
		const CBLAS_UPLO	Uplo,
		const CBLAS_TRANSPOSE	Trans,
		const CBLAS_INT	N,
		const CBLAS_INT	K,
		const double	alpha,
		const double *	A,
		const CBLAS_INT	lda,
		const double *	B,
		const CBLAS_INT	ldb,
		const double	beta,
		double *	C,
		const CBLAS_INT	ldc
	)

Definition at line 12 of file cblas_dsyr2k.c.

{
   char UL, TR;
#ifdef F77_CHAR
   F77_CHAR F77_TA, F77_UL;
#else
   #define F77_TR &TR
   #define F77_UL &UL
#endif
 
#ifdef F77_INT
   F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
   F77_INT F77_ldc=ldc;
#else
   #define F77_N N
   #define F77_K K
   #define F77_lda lda
   #define F77_ldb ldb
   #define F77_ldc ldc
#endif
 
   extern int CBLAS_CallFromC;
   extern int RowMajorStrg;
   RowMajorStrg = 0;
   CBLAS_CallFromC = 1;
 
   if( layout == CblasColMajor )
   {
 
      if( Uplo == CblasUpper) UL='U';
      else if ( Uplo == CblasLower ) UL='L';
      else
      {
         API_SUFFIX(cblas_xerbla)(2, "cblas_dsyr2k","Illegal Uplo setting, %d\n", Uplo);
         CBLAS_CallFromC = 0;
         RowMajorStrg = 0;
         return;
      }
 
      if( Trans == CblasTrans) TR ='T';
      else if ( Trans == CblasConjTrans ) TR='C';
      else if ( Trans == CblasNoTrans )   TR='N';
      else
      {
         API_SUFFIX(cblas_xerbla)(3, "cblas_dsyr2k","Illegal Trans setting, %d\n", Trans);
         CBLAS_CallFromC = 0;
         RowMajorStrg = 0;
         return;
      }
 
 
      #ifdef F77_CHAR
         F77_UL = C2F_CHAR(&UL);
         F77_TR = C2F_CHAR(&TR);
      #endif
 
      F77_dsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
                      B, &F77_ldb, &beta, C, &F77_ldc);
   } else if (layout == CblasRowMajor)
   {
      RowMajorStrg = 1;
      if( Uplo == CblasUpper) UL='L';
      else if ( Uplo == CblasLower ) UL='U';
      else
      {
         API_SUFFIX(cblas_xerbla)(3, "cblas_dsyr2k","Illegal Uplo setting, %d\n", Uplo);
         CBLAS_CallFromC = 0;
         RowMajorStrg = 0;
         return;
      }
      if( Trans == CblasTrans) TR ='N';
      else if ( Trans == CblasConjTrans ) TR='N';
      else if ( Trans == CblasNoTrans )   TR='T';
      else
      {
         API_SUFFIX(cblas_xerbla)(3, "cblas_dsyr2k","Illegal Trans setting, %d\n", Trans);
         CBLAS_CallFromC = 0;
         RowMajorStrg = 0;
         return;
      }
 
      #ifdef F77_CHAR
         F77_UL = C2F_CHAR(&UL);
         F77_TR = C2F_CHAR(&TR);
      #endif
 
      F77_dsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, B,
                &F77_ldb, &beta, C, &F77_ldc);
   }
   else API_SUFFIX(cblas_xerbla)(1, "cblas_dsyr2k","Illegal layout setting, %d\n", layout);
   CBLAS_CallFromC = 0;
   RowMajorStrg = 0;
   return;
}

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