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1 /*
2  *
3  * cblas_strmm.c
4  * This program is a C interface to strmm.
5  * Written by Keita Teranishi
6  * 4/6/1998
7  *
8  */
9 
10 #include "cblas.h"
11 #include "cblas_f77.h"
cblas_strmm(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_strmm(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    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       if( Side == CblasRight) SD='R';
45       else if ( Side == CblasLeft ) SD='L';
46       else
47       {
48          cblas_xerbla(2, "cblas_strmm","Illegal Side setting, %d\n", Side);
49          CBLAS_CallFromC = 0;
50          RowMajorStrg = 0;
51          return;
52       }
53       if( Uplo == CblasUpper) UL='U';
54       else if ( Uplo == CblasLower ) UL='L';
55       else
56       {
57          cblas_xerbla(3, "cblas_strmm","Illegal Uplo setting, %d\n", Uplo);
58          CBLAS_CallFromC = 0;
59          RowMajorStrg = 0;
60          return;
61       }
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_strmm","Illegal Trans setting, %d\n", TransA);
69          CBLAS_CallFromC = 0;
70          RowMajorStrg = 0;
71          return;
72       }
73 
74       if( Diag == CblasUnit ) DI='U';
75       else if ( Diag == CblasNonUnit ) DI='N';
76       else
77       {
78          cblas_xerbla(5, "cblas_strmm", "Illegal Diag setting, %d\n", Diag);
79          CBLAS_CallFromC = 0;
80          RowMajorStrg = 0;
81          return;
82       }
83 
84       #ifdef F77_CHAR
85          F77_UL = C2F_CHAR(&UL);
86          F77_TA = C2F_CHAR(&TA);
87          F77_SD = C2F_CHAR(&SD);
88          F77_DI = C2F_CHAR(&DI);
89       #endif
90 
91       F77_strmm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_M, &F77_N, &alpha, A, &F77_lda, B, &F77_ldb);
92    } else if (Order == CblasRowMajor)
93    {
94       RowMajorStrg = 1;
95       if( Side == CblasRight) SD='L';
96       else if ( Side == CblasLeft ) SD='R';
97       else
98       {
99          cblas_xerbla(2, "cblas_strmm","Illegal Side setting, %d\n", Side);
100          CBLAS_CallFromC = 0;
101          RowMajorStrg = 0;
102          return;
103       }
104 
105       if( Uplo == CblasUpper) UL='L';
106       else if ( Uplo == CblasLower ) UL='U';
107       else
108       {
109          cblas_xerbla(3, "cblas_strmm", "Illegal Uplo setting, %d\n", Uplo);
110          CBLAS_CallFromC = 0;
111          RowMajorStrg = 0;
112          return;
113       }
114 
115       if( TransA == CblasTrans) TA ='T';
116       else if ( TransA == CblasConjTrans ) TA='C';
117       else if ( TransA == CblasNoTrans )   TA='N';
118       else
119       {
120          cblas_xerbla(4, "cblas_strmm", "Illegal Trans setting, %d\n", TransA);
121          CBLAS_CallFromC = 0;
122          RowMajorStrg = 0;
123          return;
124       }
125 
126       if( Diag == CblasUnit ) DI='U';
127       else if ( Diag == CblasNonUnit ) DI='N';
128       else
129       {
130          cblas_xerbla(5, "cblas_strmm","Illegal Diag setting, %d\n", Diag);
131          CBLAS_CallFromC = 0;
132          RowMajorStrg = 0;
133          return;
134       }
135 #ifdef F77_CHAR
136     F77_UL = C2F_CHAR(&UL);
137     F77_TA = C2F_CHAR(&TA);
138     F77_SD = C2F_CHAR(&SD);
139     F77_DI = C2F_CHAR(&DI);
140 #endif
141       F77_strmm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_N, &F77_M, &alpha, A,
142       &F77_lda, B, &F77_ldb);
143    }
144    else  cblas_xerbla(1, "cblas_strmm", "Illegal Order setting, %d\n", Order);
145    CBLAS_CallFromC = 0;
146    RowMajorStrg = 0;
147    return;
148 }
149