1/*
2 *
3 * cblas_strsm.c
4 * This program is a C interface to strsm.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_strsm(const enum CBLAS_ORDER Order, const enum CBLAS_SIDE Side,
13                 const enum CBLAS_UPLO Uplo, const enum CBLAS_TRANSPOSE TransA,
14                 const enum CBLAS_DIAG Diag, const int M, const int N,
15                 const float alpha, const float  *A, const int lda,
16                 float  *B, const int ldb)
17
18{
19   char UL, TA, SD, DI;
20#ifdef F77_CHAR
21   F77_CHAR F77_TA, F77_UL, F77_SD, F77_DI;
22#else
23   #define F77_TA &TA
24   #define F77_UL &UL
25   #define F77_SD &SD
26   #define F77_DI &DI
27#endif
28
29#ifdef F77_INT
30   F77_INT F77_N=M, F77_N=N, F77_lda=lda, F77_ldb=ldb;
31#else
32   #define F77_M M
33   #define F77_N N
34   #define F77_lda lda
35   #define F77_ldb ldb
36#endif
37
38   extern int CBLAS_CallFromC;
39   extern int RowMajorStrg;
40   RowMajorStrg = 0;
41   CBLAS_CallFromC = 1;
42
43   if( Order == CblasColMajor )
44   {
45      if( Side == CblasRight) SD='R';
46      else if ( Side == CblasLeft ) SD='L';
47      else
48      {
49         cblas_xerbla(2, "cblas_strsm", "Illegal Side setting, %d\n", Side);
50         CBLAS_CallFromC = 0;
51         RowMajorStrg = 0;
52         return;
53      }
54      if( Uplo == CblasUpper) UL='U';
55      else if ( Uplo == CblasLower ) UL='L';
56      else
57      {
58         cblas_xerbla(3, "cblas_strsm", "Illegal Uplo setting, %d\n", Uplo);
59         CBLAS_CallFromC = 0;
60         RowMajorStrg = 0;
61         return;
62      }
63      if( TransA == CblasTrans) TA ='T';
64      else if ( TransA == CblasConjTrans ) TA='C';
65      else if ( TransA == CblasNoTrans )   TA='N';
66      else
67      {
68         cblas_xerbla(4, "cblas_strsm", "Illegal Trans setting, %d\n", TransA);
69         CBLAS_CallFromC = 0;
70         RowMajorStrg = 0;
71         return;
72      }
73      if( Diag == CblasUnit ) DI='U';
74      else if ( Diag == CblasNonUnit ) DI='N';
75      else
76      {
77         cblas_xerbla(5, "cblas_strsm", "Illegal Diag setting, %d\n", Diag);
78         CBLAS_CallFromC = 0;
79         RowMajorStrg = 0;
80         return;
81      }
82      #ifdef F77_CHAR
83         F77_UL = C2F_CHAR(&UL);
84         F77_TA = C2F_CHAR(&TA);
85         F77_SD = C2F_CHAR(&SD);
86         F77_DI = C2F_CHAR(&DI);
87      #endif
88
89      F77_strsm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_M, &F77_N, &alpha, A, &F77_lda, B, &F77_ldb);
90   } else if (Order == CblasRowMajor)
91   {
92      RowMajorStrg = 1;
93      if( Side == CblasRight) SD='L';
94      else if ( Side == CblasLeft ) SD='R';
95      else
96      {
97         cblas_xerbla(2, "cblas_strsm", "Illegal Side setting, %d\n", Side);
98         CBLAS_CallFromC = 0;
99         RowMajorStrg = 0;
100         return;
101      }
102      if( Uplo == CblasUpper) UL='L';
103      else if ( Uplo == CblasLower ) UL='U';
104      else
105      {
106         cblas_xerbla(3, "cblas_strsm", "Illegal Uplo setting, %d\n", Uplo);
107         CBLAS_CallFromC = 0;
108         RowMajorStrg = 0;
109         return;
110      }
111      if( TransA == CblasTrans) TA ='T';
112      else if ( TransA == CblasConjTrans ) TA='C';
113      else if ( TransA == CblasNoTrans )   TA='N';
114      else
115      {
116         cblas_xerbla(4, "cblas_strsm", "Illegal Trans setting, %d\n", TransA);
117         CBLAS_CallFromC = 0;
118         RowMajorStrg = 0;
119         return;
120      }
121      if( Diag == CblasUnit ) DI='U';
122      else if ( Diag == CblasNonUnit ) DI='N';
123      else
124      {
125         cblas_xerbla(5, "cblas_strsm", "Illegal Diag setting, %d\n", Diag);
126         CBLAS_CallFromC = 0;
127         RowMajorStrg = 0;
128         return;
129      }
130      #ifdef F77_CHAR
131         F77_UL = C2F_CHAR(&UL);
132         F77_TA = C2F_CHAR(&TA);
133         F77_SD = C2F_CHAR(&SD);
134         F77_DI = C2F_CHAR(&DI);
135      #endif
136
137      F77_strsm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_N, &F77_M, &alpha, A, &F77_lda, B, &F77_ldb);
138   }
139   else  cblas_xerbla(1, "cblas_strsm", "Illegal Order setting, %d\n", Order);
140   CBLAS_CallFromC = 0;
141   RowMajorStrg = 0;
142   return;
143}
144