77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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*
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* cblas_dsymv.c
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* This program is a C interface to dsymv.
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* Written by Keita Teranishi
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* 4/6/1998
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*
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*/
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#include "cblas.h"
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#include "cblas_f77.h"
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void cblas_dsymv(const CBLAS_LAYOUT layout,
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const CBLAS_UPLO Uplo, const int N,
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const double alpha, const double *A, const int lda,
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const double *X, const int incX, const double beta,
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double *Y, const int incY)
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{
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char UL;
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#ifdef F77_CHAR
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F77_CHAR F77_UL;
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#else
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#define F77_UL &UL
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#endif
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#ifdef F77_INT
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F77_INT F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
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#else
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#define F77_N N
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#define F77_lda lda
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#define F77_incX incX
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#define F77_incY incY
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#endif
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extern int CBLAS_CallFromC;
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extern int RowMajorStrg;
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RowMajorStrg = 0;
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CBLAS_CallFromC = 1;
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if (layout == CblasColMajor)
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{
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if (Uplo == CblasUpper) UL = 'U';
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else if (Uplo == CblasLower) UL = 'L';
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else
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{
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cblas_xerbla(2, "cblas_dsymv","Illegal Uplo setting, %d\n",Uplo );
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CBLAS_CallFromC = 0;
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RowMajorStrg = 0;
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return;
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}
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#ifdef F77_CHAR
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F77_UL = C2F_CHAR(&UL);
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#endif
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F77_dsymv(F77_UL, &F77_N, &alpha, A, &F77_lda, X,
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&F77_incX, &beta, Y, &F77_incY);
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}
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else if (layout == CblasRowMajor)
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{
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RowMajorStrg = 1;
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if (Uplo == CblasUpper) UL = 'L';
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else if (Uplo == CblasLower) UL = 'U';
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else
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{
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cblas_xerbla(2, "cblas_dsymv","Illegal Uplo setting, %d\n", Uplo);
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CBLAS_CallFromC = 0;
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RowMajorStrg = 0;
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return;
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}
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#ifdef F77_CHAR
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F77_UL = C2F_CHAR(&UL);
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#endif
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F77_dsymv(F77_UL, &F77_N, &alpha,
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A ,&F77_lda, X,&F77_incX, &beta, Y, &F77_incY);
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}
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else cblas_xerbla(1, "cblas_dsymv", "Illegal layout setting, %d\n", layout);
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CBLAS_CallFromC = 0;
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RowMajorStrg = 0;
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return;
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}
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