LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ cblas_cher2k()

void cblas_cher2k ( CBLAS_LAYOUT  layout,
CBLAS_UPLO  Uplo,
CBLAS_TRANSPOSE  Trans,
const CBLAS_INT  N,
const CBLAS_INT  K,
const void *  alpha,
const void *  A,
const CBLAS_INT  lda,
const void *  B,
const CBLAS_INT  ldb,
const float  beta,
void *  C,
const CBLAS_INT  ldc 
)

Definition at line 12 of file cblas_cher2k.c.

17{
18 char UL, TR;
19#ifdef F77_CHAR
20 F77_CHAR F77_TR, 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 float ALPHA[2];
40 const float *alp=(float *)alpha;
41
43 RowMajorStrg = 0;
44
45 if( layout == CblasColMajor )
46 {
47
48 if( Uplo == CblasUpper) UL='U';
49 else if ( Uplo == CblasLower ) UL='L';
50 else
51 {
52 API_SUFFIX(cblas_xerbla)(2, "cblas_cher2k", "Illegal Uplo setting, %d\n", Uplo);
54 RowMajorStrg = 0;
55 return;
56 }
57
58 if( Trans == CblasTrans) TR ='T';
59 else if ( Trans == CblasConjTrans ) TR='C';
60 else if ( Trans == CblasNoTrans ) TR='N';
61 else
62 {
63 API_SUFFIX(cblas_xerbla)(3, "cblas_cher2k", "Illegal Trans setting, %d\n", Trans);
65 RowMajorStrg = 0;
66 return;
67 }
68
69 #ifdef F77_CHAR
70 F77_UL = C2F_CHAR(&UL);
71 F77_TR = C2F_CHAR(&TR);
72 #endif
73
74 F77_cher2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
75 } else if (layout == CblasRowMajor)
76 {
77 RowMajorStrg = 1;
78
79 if( Uplo == CblasUpper) UL='L';
80 else if ( Uplo == CblasLower ) UL='U';
81 else
82 {
83 API_SUFFIX(cblas_xerbla)(2, "cblas_cher2k", "Illegal Uplo setting, %d\n", Uplo);
85 RowMajorStrg = 0;
86 return;
87 }
88 if( Trans == CblasTrans) TR ='N';
89 else if ( Trans == CblasConjTrans ) TR='N';
90 else if ( Trans == CblasNoTrans ) TR='C';
91 else
92 {
93 API_SUFFIX(cblas_xerbla)(3, "cblas_cher2k", "Illegal Trans setting, %d\n", Trans);
95 RowMajorStrg = 0;
96 return;
97 }
98 #ifdef F77_CHAR
99 F77_UL = C2F_CHAR(&UL);
100 F77_TR = C2F_CHAR(&TR);
101 #endif
102
103 ALPHA[0]= *alp;
104 ALPHA[1]= -alp[1];
105 F77_cher2k(F77_UL,F77_TR, &F77_N, &F77_K, ALPHA, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
106 }
107 else API_SUFFIX(cblas_xerbla)(1, "cblas_cher2k", "Illegal layout setting, %d\n", layout);
108 CBLAS_CallFromC = 0;
109 RowMajorStrg = 0;
110 return;
111}
@ 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_ldc
#define F77_K
#define F77_ldb
#define F77_TR
#define F77_N
#define F77_lda
#define F77_UL
#define F77_INT
#define F77_cher2k(...)
Definition cblas_f77.h:411
int CBLAS_CallFromC
int RowMajorStrg
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