LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ cblas_dtrsm()

void cblas_dtrsm ( CBLAS_LAYOUT  layout,
CBLAS_SIDE  Side,
CBLAS_UPLO  Uplo,
CBLAS_TRANSPOSE  TransA,
CBLAS_DIAG  Diag,
const CBLAS_INT  M,
const CBLAS_INT  N,
const double  alpha,
const double *  A,
const CBLAS_INT  lda,
double *  B,
const CBLAS_INT  ldb 
)

Definition at line 12 of file cblas_dtrsm.c.

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_M=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;
42
43 if( layout == CblasColMajor )
44 {
45 if ( Side == CblasRight) SD='R';
46 else if ( Side == CblasLeft ) SD='L';
47 else
48 {
49 API_SUFFIX(cblas_xerbla)(2, "cblas_dtrsm","Illegal Side setting, %d\n", Side);
51 RowMajorStrg = 0;
52 return;
53 }
54 if ( Uplo == CblasUpper) UL='U';
55 else if ( Uplo == CblasLower) UL='L';
56 else
57 {
58 API_SUFFIX(cblas_xerbla)(3, "cblas_dtrsm","Illegal Uplo setting, %d\n", Uplo);
60 RowMajorStrg = 0;
61 return;
62 }
63
64 if ( TransA == CblasTrans ) TA='T';
65 else if ( TransA == CblasConjTrans) TA='C';
66 else if ( TransA == CblasNoTrans ) TA='N';
67 else
68 {
69 API_SUFFIX(cblas_xerbla)(4, "cblas_dtrsm","Illegal Trans setting, %d\n", TransA);
71 RowMajorStrg = 0;
72 return;
73 }
74
75 if ( Diag == CblasUnit ) DI='U';
76 else if ( Diag == CblasNonUnit) DI='N';
77 else
78 {
79 API_SUFFIX(cblas_xerbla)(5, "cblas_dtrsm","Illegal Diag setting, %d\n", Diag);
81 RowMajorStrg = 0;
82 return;
83 }
84
85 #ifdef F77_CHAR
86 F77_UL = C2F_CHAR(&UL);
87 F77_TA = C2F_CHAR(&TA);
88 F77_SD = C2F_CHAR(&SD);
89 F77_DI = C2F_CHAR(&DI);
90 #endif
91
93 A, &F77_lda, B, &F77_ldb);
94 }
95 else if (layout == CblasRowMajor)
96 {
97 RowMajorStrg = 1;
98 if ( Side == CblasRight) SD='L';
99 else if ( Side == CblasLeft ) SD='R';
100 else
101 {
102 API_SUFFIX(cblas_xerbla)(2, "cblas_dtrsm","Illegal Side setting, %d\n", Side);
103 CBLAS_CallFromC = 0;
104 RowMajorStrg = 0;
105 return;
106 }
107
108 if ( Uplo == CblasUpper) UL='L';
109 else if ( Uplo == CblasLower) UL='U';
110 else
111 {
112 API_SUFFIX(cblas_xerbla)(3, "cblas_dtrsm","Illegal Uplo setting, %d\n", Uplo);
113 CBLAS_CallFromC = 0;
114 RowMajorStrg = 0;
115 return;
116 }
117
118 if ( TransA == CblasTrans ) TA='T';
119 else if ( TransA == CblasConjTrans) TA='C';
120 else if ( TransA == CblasNoTrans ) TA='N';
121 else
122 {
123 API_SUFFIX(cblas_xerbla)(4, "cblas_dtrsm","Illegal Trans setting, %d\n", TransA);
124 CBLAS_CallFromC = 0;
125 RowMajorStrg = 0;
126 return;
127 }
128
129 if ( Diag == CblasUnit ) DI='U';
130 else if ( Diag == CblasNonUnit) DI='N';
131 else
132 {
133 API_SUFFIX(cblas_xerbla)(5, "cblas_dtrsm","Illegal Diag setting, %d\n", Diag);
134 CBLAS_CallFromC = 0;
135 RowMajorStrg = 0;
136 return;
137 }
138
139 #ifdef F77_CHAR
140 F77_UL = C2F_CHAR(&UL);
141 F77_TA = C2F_CHAR(&TA);
142 F77_SD = C2F_CHAR(&SD);
143 F77_DI = C2F_CHAR(&DI);
144 #endif
145
146 F77_dtrsm(F77_SD, F77_UL, F77_TA, F77_DI, &F77_N, &F77_M, &alpha, A,
147 &F77_lda, B, &F77_ldb);
148 }
149 else API_SUFFIX(cblas_xerbla)(1, "cblas_dtrsm","Illegal layout setting, %d\n", layout);
150 CBLAS_CallFromC = 0;
151 RowMajorStrg = 0;
152 return;
153}
@ CblasLower
Definition cblas.h:41
@ CblasUpper
Definition cblas.h:41
void cblas_xerbla(CBLAS_INT p, const char *rout, const char *form,...)
@ CblasNoTrans
Definition cblas.h:40
@ CblasTrans
Definition cblas.h:40
@ CblasConjTrans
Definition cblas.h:40
@ CblasRight
Definition cblas.h:43
@ CblasLeft
Definition cblas.h:43
@ CblasColMajor
Definition cblas.h:39
@ CblasRowMajor
Definition cblas.h:39
@ CblasUnit
Definition cblas.h:42
@ CblasNonUnit
Definition cblas.h:42
#define API_SUFFIX(a)
Definition cblas.h:57
#define F77_DI
#define F77_ldb
#define F77_TA
#define F77_N
#define F77_SD
#define F77_lda
#define F77_UL
#define F77_M
#define F77_INT
#define F77_dtrsm(...)
Definition cblas_f77.h:401
int CBLAS_CallFromC
int RowMajorStrg
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