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/*
*
* cblas_ssbmv.c
* This program is a C interface to ssbmv.
* Written by Keita Teranishi
* 4/6/1998
*
*/
#include "cblas.h"
#include "cblas_f77.h"
void cblas_ssbmv(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
const int N, const int K, const float alpha, const float *A,
const int lda, const float *X, const int incX,
const float beta, float *Y, const int incY)
{
char UL;
#ifdef F77_CHAR
F77_CHAR F77_UL;
#else
#define F77_UL &UL
#endif
#ifdef F77_INT
F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_incX=incX, F77_incY=incY;
#else
#define F77_N N
#define F77_K K
#define F77_lda lda
#define F77_incX incX
#define F77_incY incY
#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
{
cblas_xerbla(2, "cblas_ssbmv","Illegal Uplo setting, %d\n",Uplo );
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
#ifdef F77_CHAR
F77_UL = C2F_CHAR(&UL);
#endif
F77_ssbmv(F77_UL, &F77_N, &F77_K, &alpha, A, &F77_lda, X,
&F77_incX, &beta, Y, &F77_incY);
}else if (layout == CblasRowMajor)
{
RowMajorStrg = 1;
if (Uplo == CblasUpper) UL = 'L';
else if (Uplo == CblasLower) UL = 'U';
else
{
cblas_xerbla(2, "cblas_ssbmv","Illegal Uplo setting, %d\n", Uplo);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
#ifdef F77_CHAR
F77_UL = C2F_CHAR(&UL);
#endif
F77_ssbmv(F77_UL, &F77_N, &F77_K, &alpha, A, &F77_lda, X,
&F77_incX, &beta, Y, &F77_incY);
}
else cblas_xerbla(1, "cblas_ssbmv", "Illegal layout setting, %d\n", layout);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
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