1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
|
/*
* cblas_ztrsv.c
* The program is a C interface to ztrsv.
*
* Keita Teranishi 3/23/98
*
*/
#include "cblas.h"
#include "cblas_f77.h"
void cblas_ztrsv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_DIAG Diag,
const int N, const void *A, const int lda, void *X,
const int incX)
{
char TA;
char UL;
char DI;
#ifdef F77_CHAR
F77_CHAR F77_TA, F77_UL, F77_DI;
#else
#define F77_TA &TA
#define F77_UL &UL
#define F77_DI &DI
#endif
#ifdef F77_INT
F77_INT F77_N=N, F77_lda=lda, F77_incX=incX;
#else
#define F77_N N
#define F77_lda lda
#define F77_incX incX
#endif
int n, i=0, tincX;
double *st=0,*x=(double *)X;
extern int CBLAS_CallFromC;
extern int RowMajorStrg;
RowMajorStrg = 0;
mcblas_fix_info=cblas_fix_info;
if (order == CblasColMajor)
{
if (Uplo == CblasUpper) UL = 'U';
else if (Uplo == CblasLower) UL = 'L';
else
{
cblas_xerbla(2, "cblas_ztrsv","Illegal Uplo setting, %d\n", Uplo);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
if (TransA == CblasNoTrans) TA = 'N';
else if (TransA == CblasTrans) TA = 'T';
else if (TransA == CblasConjTrans) TA = 'C';
else
{
cblas_xerbla(3, "cblas_ztrsv","Illegal TransA setting, %d\n", TransA);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
if (Diag == CblasUnit) DI = 'U';
else if (Diag == CblasNonUnit) DI = 'N';
else
{
cblas_xerbla(4, "cblas_ztrsv","Illegal Diag setting, %d\n", Diag);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
#ifdef F77_CHAR
F77_UL = C2F_CHAR(&UL);
F77_TA = C2F_CHAR(&TA);
F77_DI = C2F_CHAR(&DI);
#endif
F77_ztrsv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X,
&F77_incX);
}
else if (order == CblasRowMajor)
{
RowMajorStrg = 1;
if (Uplo == CblasUpper) UL = 'L';
else if (Uplo == CblasLower) UL = 'U';
else
{
cblas_xerbla(2, "cblas_ztrsv","Illegal Uplo setting, %d\n", Uplo);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
if (TransA == CblasNoTrans) TA = 'T';
else if (TransA == CblasTrans) TA = 'N';
else if (TransA == CblasConjTrans)
{
TA = 'N';
if ( N > 0)
{
if ( incX > 0 )
tincX = incX;
else
tincX = -incX;
n = N*2*(tincX);
x++;
st=x+n;
i = tincX << 1;
do
{
*x = -(*x);
x+=i;
}
while (x != st);
x -= n;
}
}
else
{
cblas_xerbla(3, "cblas_ztrsv","Illegal TransA setting, %d\n", TransA);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
if (Diag == CblasUnit) DI = 'U';
else if (Diag == CblasNonUnit) DI = 'N';
else
{
cblas_xerbla(4, "cblas_ztrsv","Illegal Diag setting, %d\n", Diag);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
#ifdef F77_CHAR
F77_UL = C2F_CHAR(&UL);
F77_TA = C2F_CHAR(&TA);
F77_DI = C2F_CHAR(&DI);
#endif
F77_ztrsv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X,
&F77_incX);
if (TransA == CblasConjTrans)
{
if (N > 0)
{
do
{
*x = -(*x);
x += i;
}
while (x != st);
}
}
}
else cblas_xerbla(1, "cblas_ztrsv", "Illegal Order setting, %d\n", order);
mcblas_fix_info = NULL;
RowMajorStrg = 0;
return;
}
|