LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ cblas_dsyr2k()

void cblas_dsyr2k ( CBLAS_LAYOUT  layout,
CBLAS_UPLO  Uplo,
CBLAS_TRANSPOSE  Trans,
const CBLAS_INT  N,
const CBLAS_INT  K,
const double  alpha,
const double *  A,
const CBLAS_INT  lda,
const double *  B,
const CBLAS_INT  ldb,
const double  beta,
double *  C,
const CBLAS_INT  ldc 
)

Definition at line 12 of file cblas_dsyr2k.c.

17{
18 char UL, TR;
19#ifdef F77_CHAR
20 F77_CHAR F77_TA, F77_UL;
21#else
22 #define F77_TR &TR
23 #define F77_UL &UL
24#endif
25
26#ifdef F77_INT
27 F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
28 F77_INT F77_ldc=ldc;
29#else
30 #define F77_N N
31 #define F77_K K
32 #define F77_lda lda
33 #define F77_ldb ldb
34 #define F77_ldc ldc
35#endif
36
37 extern int CBLAS_CallFromC;
38 extern int RowMajorStrg;
39 RowMajorStrg = 0;
41
42 if( layout == CblasColMajor )
43 {
44
45 if( Uplo == CblasUpper) UL='U';
46 else if ( Uplo == CblasLower ) UL='L';
47 else
48 {
49 API_SUFFIX(cblas_xerbla)(2, "cblas_dsyr2k","Illegal Uplo setting, %d\n", Uplo);
51 RowMajorStrg = 0;
52 return;
53 }
54
55 if( Trans == CblasTrans) TR ='T';
56 else if ( Trans == CblasConjTrans ) TR='C';
57 else if ( Trans == CblasNoTrans ) TR='N';
58 else
59 {
60 API_SUFFIX(cblas_xerbla)(3, "cblas_dsyr2k","Illegal Trans setting, %d\n", Trans);
62 RowMajorStrg = 0;
63 return;
64 }
65
66
67 #ifdef F77_CHAR
68 F77_UL = C2F_CHAR(&UL);
69 F77_TR = C2F_CHAR(&TR);
70 #endif
71
72 F77_dsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
73 B, &F77_ldb, &beta, C, &F77_ldc);
74 } else if (layout == CblasRowMajor)
75 {
76 RowMajorStrg = 1;
77 if( Uplo == CblasUpper) UL='L';
78 else if ( Uplo == CblasLower ) UL='U';
79 else
80 {
81 API_SUFFIX(cblas_xerbla)(3, "cblas_dsyr2k","Illegal Uplo setting, %d\n", Uplo);
83 RowMajorStrg = 0;
84 return;
85 }
86 if( Trans == CblasTrans) TR ='N';
87 else if ( Trans == CblasConjTrans ) TR='N';
88 else if ( Trans == CblasNoTrans ) TR='T';
89 else
90 {
91 API_SUFFIX(cblas_xerbla)(3, "cblas_dsyr2k","Illegal Trans setting, %d\n", Trans);
93 RowMajorStrg = 0;
94 return;
95 }
96
97 #ifdef F77_CHAR
98 F77_UL = C2F_CHAR(&UL);
99 F77_TR = C2F_CHAR(&TR);
100 #endif
101
102 F77_dsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, B,
103 &F77_ldb, &beta, C, &F77_ldc);
104 }
105 else API_SUFFIX(cblas_xerbla)(1, "cblas_dsyr2k","Illegal layout setting, %d\n", layout);
106 CBLAS_CallFromC = 0;
107 RowMajorStrg = 0;
108 return;
109}
@ 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
@ CblasColMajor
Definition cblas.h:39
@ CblasRowMajor
Definition cblas.h:39
#define API_SUFFIX(a)
Definition cblas.h:57
#define F77_TA
#define F77_ldc
#define F77_K
#define F77_ldb
#define F77_TR
#define F77_N
#define F77_lda
#define F77_UL
#define F77_INT
#define F77_dsyr2k(...)
Definition cblas_f77.h:399
int CBLAS_CallFromC
int RowMajorStrg
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