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"
cblas_strsm(const enum CBLAS_ORDER Order,const enum CBLAS_SIDE Side,const enum CBLAS_UPLO Uplo,const enum CBLAS_TRANSPOSE TransA,const enum CBLAS_DIAG Diag,const int M,const int N,const float alpha,const float * A,const int lda,float * B,const int ldb)12 void 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