coco
139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/*
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* cblas_ztpsv.c
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* The program is a C interface to ztpsv.
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*
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* Keita Teranishi 3/23/98
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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_ztpsv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
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const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_DIAG Diag,
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const CBLAS_INT_TYPE N, const void *Ap, void *X, const CBLAS_INT_TYPE incX)
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{
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char TA;
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char UL;
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char DI;
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#ifdef F77_CHAR
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F77_CHAR F77_TA, F77_UL, F77_DI;
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#else
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#define F77_TA &TA
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#define F77_UL &UL
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#define F77_DI &DI
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#endif
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#ifdef F77_INT
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F77_INT F77_N=N, F77_incX=incX;
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#else
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#define F77_N N
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#define F77_incX incX
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#endif
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CBLAS_INT_TYPE n, i=0, tincX;
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double *st=0, *x=(double*)X;
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if (order == 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_ztpsv","Illegal Uplo setting, %d\n", Uplo);
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return;
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}
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if (TransA == CblasNoTrans) TA = 'N';
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else if (TransA == CblasTrans) TA = 'T';
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else if (TransA == CblasConjTrans) TA = 'C';
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else
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{
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cblas_xerbla(3, "cblas_ztpsv","Illegal TransA setting, %d\n", TransA);
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return;
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}
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if (Diag == CblasUnit) DI = 'U';
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else if (Diag == CblasNonUnit) DI = 'N';
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else
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{
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cblas_xerbla(4, "cblas_ztpsv","Illegal Diag setting, %d\n", Diag);
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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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F77_TA = C2F_CHAR(&TA);
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F77_DI = C2F_CHAR(&DI);
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#endif
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F77_ztpsv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X, &F77_incX);
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}
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else if (order == CblasRowMajor)
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{
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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_ztpsv","Illegal Uplo setting, %d\n", Uplo);
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return;
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}
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if (TransA == CblasNoTrans) TA = 'T';
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else if (TransA == CblasTrans) TA = 'N';
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else if (TransA == CblasConjTrans)
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{
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TA = 'N';
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if ( N > 0)
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{
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if ( incX > 0 )
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tincX = incX;
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else
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tincX = -incX;
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n = N*2*(tincX);
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x++;
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st=x+n;
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i = tincX << 1;
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do
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{
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*x = -(*x);
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x+=i;
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}
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while (x != st);
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x -= n;
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}
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}
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else
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{
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cblas_xerbla(3, "cblas_ztpsv","Illegal TransA setting, %d\n", TransA);
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return;
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}
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if (Diag == CblasUnit) DI = 'U';
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else if (Diag == CblasNonUnit) DI = 'N';
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else
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{
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cblas_xerbla(4, "cblas_ztpsv","Illegal Diag setting, %d\n", Diag);
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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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F77_TA = C2F_CHAR(&TA);
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F77_DI = C2F_CHAR(&DI);
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#endif
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F77_ztpsv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X,&F77_incX);
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if (TransA == CblasConjTrans)
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{
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if (N > 0)
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{
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do
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{
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*x = -(*x);
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x += i;
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}
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while (x != st);
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}
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}
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}
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else cblas_xerbla(1, "cblas_ztpsv", "Illegal Order setting, %d\n", order);
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return;
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}
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