1/*
2 *
3 * cblas_strmv.c
4 * This program is a C interface to strmv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9#include "cblas.h"
10#include "cblas_f77.h"
11void cblas_strmv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
12                 const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_DIAG Diag,
13                 const int N, const float  *A, const int lda,
14                 float  *X, const int incX)
15
16{
17   char TA;
18   char UL;
19   char DI;
20#ifdef F77_CHAR
21   F77_CHAR F77_TA, F77_UL, F77_DI;
22#else
23   #define F77_TA &TA
24   #define F77_UL &UL
25   #define F77_DI &DI
26#endif
27#ifdef F77_INT
28   F77_INT F77_N=N, F77_lda=lda, F77_incX=incX;
29#else
30   #define F77_N N
31   #define F77_lda lda
32   #define F77_incX incX
33#endif
34   extern int CBLAS_CallFromC;
35   extern int RowMajorStrg;
36   RowMajorStrg = 0;
37
38   CBLAS_CallFromC = 1;
39   if (order == CblasColMajor)
40   {
41      if (Uplo == CblasUpper) UL = 'U';
42      else if (Uplo == CblasLower) UL = 'L';
43      else
44      {
45         cblas_xerbla(2, "cblas_strmv","Illegal Uplo setting, %d\n", Uplo);
46         CBLAS_CallFromC = 0;
47         RowMajorStrg = 0;
48         return;
49      }
50      if (TransA == CblasNoTrans) TA = 'N';
51      else if (TransA == CblasTrans) TA = 'T';
52      else if (TransA == CblasConjTrans) TA = 'C';
53      else
54      {
55         cblas_xerbla(3, "cblas_strmv","Illegal TransA setting, %d\n", TransA);
56         CBLAS_CallFromC = 0;
57         RowMajorStrg = 0;
58         return;
59      }
60      if (Diag == CblasUnit) DI = 'U';
61      else if (Diag == CblasNonUnit) DI = 'N';
62      else
63      {
64         cblas_xerbla(4, "cblas_strmv","Illegal Diag setting, %d\n", Diag);
65         CBLAS_CallFromC = 0;
66         RowMajorStrg = 0;
67         return;
68      }
69      #ifdef F77_CHAR
70         F77_UL = C2F_CHAR(&UL);
71         F77_TA = C2F_CHAR(&TA);
72         F77_DI = C2F_CHAR(&DI);
73      #endif
74      F77_strmv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X,
75                      &F77_incX);
76   }
77   else if (order == CblasRowMajor)
78   {
79      RowMajorStrg = 1;
80      if (Uplo == CblasUpper) UL = 'L';
81      else if (Uplo == CblasLower) UL = 'U';
82      else
83      {
84         cblas_xerbla(2, "cblas_strmv","Illegal Uplo setting, %d\n", Uplo);
85         CBLAS_CallFromC = 0;
86         RowMajorStrg = 0;
87         return;
88      }
89
90      if (TransA == CblasNoTrans) TA = 'T';
91      else if (TransA == CblasTrans) TA = 'N';
92      else if (TransA == CblasConjTrans) TA = 'N';
93      else
94      {
95         cblas_xerbla(3, "cblas_strmv","Illegal TransA setting, %d\n", TransA);
96         CBLAS_CallFromC = 0;
97         RowMajorStrg = 0;
98         return;
99      }
100
101      if (Diag == CblasUnit) DI = 'U';
102      else if (Diag == CblasNonUnit) DI = 'N';
103      else
104      {
105         cblas_xerbla(4, "cblas_strmv","Illegal Diag setting, %d\n", Diag);
106         CBLAS_CallFromC = 0;
107         RowMajorStrg = 0;
108         return;
109      }
110      #ifdef F77_CHAR
111         F77_UL = C2F_CHAR(&UL);
112         F77_TA = C2F_CHAR(&TA);
113         F77_DI = C2F_CHAR(&DI);
114      #endif
115      F77_strmv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X,
116                      &F77_incX);
117   }
118   else cblas_xerbla(1, "cblas_strmv", "Illegal Order setting, %d\n", order);
119   CBLAS_CallFromC = 0;
120   RowMajorStrg = 0;
121   return;
122}
123