1/*
2 *
3 * cblas_ztrsm.c
4 * This program is a C interface to ztrsm.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_ztrsm(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 void *alpha, const void  *A, const int lda,
16                 void  *B, const int ldb)
17{
18   char UL, TA, SD, DI;
19#ifdef F77_CHAR
20   F77_CHAR F77_TA, F77_UL, F77_SD, F77_DI;
21#else
22   #define F77_TA &TA
23   #define F77_UL &UL
24   #define F77_SD &SD
25   #define F77_DI &DI
26#endif
27
28#ifdef F77_INT
29   F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_ldb=ldb;
30#else
31   #define F77_M M
32   #define F77_N N
33   #define F77_lda lda
34   #define F77_ldb ldb
35#endif
36
37   extern int CBLAS_CallFromC;
38   extern int RowMajorStrg;
39   RowMajorStrg = 0;
40   CBLAS_CallFromC = 1;
41
42   if( Order == CblasColMajor )
43   {
44
45      if( Side == CblasRight) SD='R';
46      else if ( Side == CblasLeft ) SD='L';
47      else
48      {
49         cblas_xerbla(2, "cblas_ztrsm", "Illegal Side setting, %d\n", Side);
50         CBLAS_CallFromC = 0;
51         RowMajorStrg = 0;
52         return;
53      }
54
55      if( Uplo == CblasUpper) UL='U';
56      else if ( Uplo == CblasLower ) UL='L';
57      else
58      {
59         cblas_xerbla(3, "cblas_ztrsm", "Illegal Uplo setting, %d\n", Uplo);
60         CBLAS_CallFromC = 0;
61         RowMajorStrg = 0;
62         return;
63      }
64
65      if( TransA == CblasTrans) TA ='T';
66      else if ( TransA == CblasConjTrans ) TA='C';
67      else if ( TransA == CblasNoTrans )   TA='N';
68      else
69      {
70         cblas_xerbla(4, "cblas_ztrsm", "Illegal Trans setting, %d\n", TransA);
71         CBLAS_CallFromC = 0;
72         RowMajorStrg = 0;
73         return;
74      }
75
76      if( Diag == CblasUnit ) DI='U';
77      else if ( Diag == CblasNonUnit ) DI='N';
78      else
79      {
80         cblas_xerbla(5, "cblas_ztrsm", "Illegal Diag setting, %d\n", Diag);
81         CBLAS_CallFromC = 0;
82         RowMajorStrg = 0;
83         return;
84      }
85
86      #ifdef F77_CHAR
87         F77_UL = C2F_CHAR(&UL);
88         F77_TA = C2F_CHAR(&TA);
89         F77_SD = C2F_CHAR(&SD);
90         F77_DI = C2F_CHAR(&DI);
91      #endif
92
93      F77_ztrsm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_M, &F77_N, alpha, A,
94                &F77_lda, B, &F77_ldb);
95   } else if (Order == CblasRowMajor)
96   {
97      RowMajorStrg = 1;
98
99      if( Side == CblasRight) SD='L';
100      else if ( Side == CblasLeft ) SD='R';
101      else
102      {
103         cblas_xerbla(2, "cblas_ztrsm", "Illegal Side setting, %d\n", Side);
104         CBLAS_CallFromC = 0;
105         RowMajorStrg = 0;
106         return;
107      }
108
109      if( Uplo == CblasUpper) UL='L';
110      else if ( Uplo == CblasLower ) UL='U';
111      else
112      {
113         cblas_xerbla(3, "cblas_ztrsm", "Illegal Uplo setting, %d\n", Uplo);
114         CBLAS_CallFromC = 0;
115         RowMajorStrg = 0;
116         return;
117      }
118
119      if( TransA == CblasTrans) TA ='T';
120      else if ( TransA == CblasConjTrans ) TA='C';
121      else if ( TransA == CblasNoTrans )   TA='N';
122      else
123      {
124         cblas_xerbla(4, "cblas_ztrsm", "Illegal Trans setting, %d\n", TransA);
125         CBLAS_CallFromC = 0;
126         RowMajorStrg = 0;
127         return;
128      }
129
130      if( Diag == CblasUnit ) DI='U';
131      else if ( Diag == CblasNonUnit ) DI='N';
132      else
133      {
134         cblas_xerbla(5, "cblas_ztrsm", "Illegal Diag setting, %d\n", Diag);
135         CBLAS_CallFromC = 0;
136         RowMajorStrg = 0;
137         return;
138      }
139
140      #ifdef F77_CHAR
141         F77_UL = C2F_CHAR(&UL);
142         F77_TA = C2F_CHAR(&TA);
143         F77_SD = C2F_CHAR(&SD);
144         F77_DI = C2F_CHAR(&DI);
145      #endif
146
147
148      F77_ztrsm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_N, &F77_M, alpha, A,
149                &F77_lda, B, &F77_ldb);
150   }
151   else  cblas_xerbla(1, "cblas_ztrsm", "Illegal Order setting, %d\n", Order);
152   CBLAS_CallFromC = 0;
153   RowMajorStrg = 0;
154   return;
155}
156