cblas_dspr()

void cblas_dspr	(	CBLAS_LAYOUT	layout,
		CBLAS_UPLO	Uplo,
		const CBLAS_INDEX	N,
		const double	alpha,
		const double *	X,
		const CBLAS_INDEX	incX,
		double *	Ap
	)

Definition at line 12 of file cblas_dspr.c.

{
   char UL;
#ifdef F77_CHAR
   F77_CHAR F77_UL;
#else
   #define F77_UL &UL
#endif
 
#ifdef F77_INT
   F77_INT F77_N=N, F77_incX=incX;
#else
   #define F77_N N
   #define F77_incX incX
#endif
   extern int CBLAS_CallFromC;
   extern int RowMajorStrg;
   RowMajorStrg = 0;
   CBLAS_CallFromC = 1;
   if (layout == CblasColMajor)
   {
      if (Uplo == CblasLower) UL = 'L';
      else if (Uplo == CblasUpper) UL = 'U';
      else
      {
         cblas_xerbla(2, "cblas_dspr","Illegal Uplo setting, %d\n",Uplo );
         CBLAS_CallFromC = 0;
         RowMajorStrg = 0;
         return;
      }
      #ifdef F77_CHAR
         F77_UL = C2F_CHAR(&UL);
      #endif
 
      F77_dspr(F77_UL, &F77_N, &alpha, X, &F77_incX, Ap);
 
   }  else if (layout == CblasRowMajor)
   {
      RowMajorStrg = 1;
      if (Uplo == CblasLower) UL = 'U';
      else if (Uplo == CblasUpper) UL = 'L';
      else
      {
         cblas_xerbla(2, "cblas_dspr","Illegal Uplo setting, %d\n",Uplo );
         CBLAS_CallFromC = 0;
         RowMajorStrg = 0;
         return;
      }
      #ifdef F77_CHAR
         F77_UL = C2F_CHAR(&UL);
      #endif
      F77_dspr(F77_UL, &F77_N, &alpha, X, &F77_incX, Ap);
   } else cblas_xerbla(1, "cblas_dspr", "Illegal layout setting, %d\n", layout);
   CBLAS_CallFromC = 0;
   RowMajorStrg = 0;
   return;
}

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