LAPACK  3.10.0
LAPACK: Linear Algebra PACKage
cblas_ztpmv.c
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1 /*
2  * cblas_ztpmv.c
3  * The program is a C interface to ztpmv.
4  *
5  * Keita Teranishi 5/20/98
6  *
7  */
8 #include "cblas.h"
9 #include "cblas_f77.h"
10 void cblas_ztpmv(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
11  const CBLAS_TRANSPOSE TransA, const CBLAS_DIAG Diag,
12  const CBLAS_INDEX N, const void *Ap, void *X, const CBLAS_INDEX incX)
13 {
14  char TA;
15  char UL;
16  char DI;
17 #ifdef F77_CHAR
18  F77_CHAR F77_TA, F77_UL, F77_DI;
19 #else
20  #define F77_TA &TA
21  #define F77_UL &UL
22  #define F77_DI &DI
23 #endif
24 #ifdef F77_INT
25  F77_INT F77_N=N, F77_incX=incX;
26 #else
27  #define F77_N N
28  #define F77_incX incX
29 #endif
30  CBLAS_INDEX n, i=0, tincX;
31  double *st=0,*x=(double *)X;
32  extern int CBLAS_CallFromC;
33  extern int RowMajorStrg;
34  RowMajorStrg = 0;
35 
36  CBLAS_CallFromC = 1;
37  if (layout == CblasColMajor)
38  {
39  if (Uplo == CblasUpper) UL = 'U';
40  else if (Uplo == CblasLower) UL = 'L';
41  else
42  {
43  cblas_xerbla(2, "cblas_ztpmv","Illegal Uplo setting, %d\n", Uplo);
44  CBLAS_CallFromC = 0;
45  RowMajorStrg = 0;
46  return;
47  }
48  if (TransA == CblasNoTrans) TA = 'N';
49  else if (TransA == CblasTrans) TA = 'T';
50  else if (TransA == CblasConjTrans) TA = 'C';
51  else
52  {
53  cblas_xerbla(3, "cblas_ztpmv","Illegal TransA setting, %d\n", TransA);
54  CBLAS_CallFromC = 0;
55  RowMajorStrg = 0;
56  return;
57  }
58  if (Diag == CblasUnit) DI = 'U';
59  else if (Diag == CblasNonUnit) DI = 'N';
60  else
61  {
62  cblas_xerbla(4, "cblas_ztpmv","Illegal Diag setting, %d\n", Diag);
63  CBLAS_CallFromC = 0;
64  RowMajorStrg = 0;
65  return;
66  }
67  #ifdef F77_CHAR
68  F77_UL = C2F_CHAR(&UL);
69  F77_TA = C2F_CHAR(&TA);
70  F77_DI = C2F_CHAR(&DI);
71  #endif
72  F77_ztpmv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X, &F77_incX);
73  }
74  else if (layout == CblasRowMajor)
75  {
76  RowMajorStrg = 1;
77  if (Uplo == CblasUpper) UL = 'L';
78  else if (Uplo == CblasLower) UL = 'U';
79  else
80  {
81  cblas_xerbla(2, "cblas_ztpmv","Illegal Uplo setting, %d\n", Uplo);
82  CBLAS_CallFromC = 0;
83  RowMajorStrg = 0;
84  return;
85  }
86 
87  if (TransA == CblasNoTrans) TA = 'T';
88  else if (TransA == CblasTrans) TA = 'N';
89  else if (TransA == CblasConjTrans)
90  {
91  TA = 'N';
92  if ( N > 0)
93  {
94  if(incX > 0)
95  tincX = incX;
96  else
97  tincX = -incX;
98  i = tincX << 1;
99  n = i * N;
100  x++;
101  st = x + n;
102  do
103  {
104  *x = -(*x);
105  x += i;
106  }
107  while (x != st);
108  x -= n;
109  }
110  }
111  else
112  {
113  cblas_xerbla(3, "cblas_ztpmv","Illegal TransA setting, %d\n", TransA);
114  CBLAS_CallFromC = 0;
115  RowMajorStrg = 0;
116  return;
117  }
118 
119  if (Diag == CblasUnit) DI = 'U';
120  else if (Diag == CblasNonUnit) DI = 'N';
121  else
122  {
123  cblas_xerbla(4, "cblas_ztpmv","Illegal Diag setting, %d\n", Diag);
124  CBLAS_CallFromC = 0;
125  RowMajorStrg = 0;
126  return;
127  }
128  #ifdef F77_CHAR
129  F77_UL = C2F_CHAR(&UL);
130  F77_TA = C2F_CHAR(&TA);
131  F77_DI = C2F_CHAR(&DI);
132  #endif
133 
134  F77_ztpmv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X,&F77_incX);
135  if (TransA == CblasConjTrans)
136  {
137  if (N > 0)
138  {
139  do
140  {
141  *x = -(*x);
142  x += i;
143  }
144  while (x != st);
145  }
146  }
147  }
148  else cblas_xerbla(1, "cblas_ztpmv", "Illegal layout setting, %d\n", layout);
149  CBLAS_CallFromC = 0;
150  RowMajorStrg = 0;
151  return;
152 }
void F77_ztpmv(int *layout, char *uplow, char *transp, char *diagn, int *n, CBLAS_TEST_ZOMPLEX *ap, CBLAS_TEST_ZOMPLEX *x, int *incx)
Definition: c_zblas2.c:422
#define CBLAS_INDEX
Definition: cblas.h:16
CBLAS_UPLO
Definition: cblas.h:21
@ CblasLower
Definition: cblas.h:21
@ CblasUpper
Definition: cblas.h:21
CBLAS_TRANSPOSE
Definition: cblas.h:20
@ CblasNoTrans
Definition: cblas.h:20
@ CblasTrans
Definition: cblas.h:20
@ CblasConjTrans
Definition: cblas.h:20
CBLAS_LAYOUT
Definition: cblas.h:19
@ CblasColMajor
Definition: cblas.h:19
@ CblasRowMajor
Definition: cblas.h:19
CBLAS_DIAG
Definition: cblas.h:22
@ CblasUnit
Definition: cblas.h:22
@ CblasNonUnit
Definition: cblas.h:22
void cblas_xerbla(CBLAS_INDEX p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:12
#define F77_INT
Definition: cblas_f77.h:30
int CBLAS_CallFromC
Definition: cblas_globals.c:1
int RowMajorStrg
Definition: cblas_globals.c:2
#define F77_DI
#define F77_incX
void cblas_ztpmv(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const CBLAS_TRANSPOSE TransA, const CBLAS_DIAG Diag, const CBLAS_INDEX N, const void *Ap, void *X, const CBLAS_INDEX incX)
Definition: cblas_ztpmv.c:10
#define F77_TA
#define F77_N
#define F77_UL
#define N
Definition: example_user.c:10