1 /*
2 * cblas_dtpmv.c
3 * The program is a C interface to dtpmv.
4 *
5 * Keita Teranishi 5/20/98
6 *
7 */
8 #include "cblas.h"
9 #include "cblas_f77.h"
cblas_dtpmv(const CBLAS_LAYOUT layout,const CBLAS_UPLO Uplo,const CBLAS_TRANSPOSE TransA,const CBLAS_DIAG Diag,const CBLAS_INDEX N,const double * Ap,double * X,const CBLAS_INDEX incX)10 void cblas_dtpmv(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
11 const CBLAS_TRANSPOSE TransA, const CBLAS_DIAG Diag,
12 const CBLAS_INDEX N, const double *Ap, double *X, const CBLAS_INDEX incX)
13 {
14 char TA;
15 char UL;
16 char DI;
17 #ifdef F77_CHAR
18 F77_CHAR F77_TA, F77_UL, F77_DI;
19 #else
20 #define F77_TA &TA
21 #define F77_UL &UL
22 #define F77_DI &DI
23 #endif
24 #ifdef F77_INT
25 F77_INT F77_N=N, F77_incX=incX;
26 #else
27 #define F77_N N
28 #define F77_incX incX
29 #endif
30 extern int CBLAS_CallFromC;
31 extern int RowMajorStrg;
32 RowMajorStrg = 0;
33
34 CBLAS_CallFromC = 1;
35 if (layout == CblasColMajor)
36 {
37 if (Uplo == CblasUpper) UL = 'U';
38 else if (Uplo == CblasLower) UL = 'L';
39 else
40 {
41 cblas_xerbla(2, "cblas_dtpmv","Illegal Uplo setting, %d\n", Uplo);
42 CBLAS_CallFromC = 0;
43 RowMajorStrg = 0;
44 return;
45 }
46 if (TransA == CblasNoTrans) TA = 'N';
47 else if (TransA == CblasTrans) TA = 'T';
48 else if (TransA == CblasConjTrans) TA = 'C';
49 else
50 {
51 cblas_xerbla(3, "cblas_dtpmv","Illegal TransA setting, %d\n", TransA);
52 CBLAS_CallFromC = 0;
53 RowMajorStrg = 0;
54 return;
55 }
56 if (Diag == CblasUnit) DI = 'U';
57 else if (Diag == CblasNonUnit) DI = 'N';
58 else
59 {
60 cblas_xerbla(4, "cblas_dtpmv","Illegal Diag setting, %d\n", Diag);
61 CBLAS_CallFromC = 0;
62 RowMajorStrg = 0;
63 return;
64 }
65 #ifdef F77_CHAR
66 F77_UL = C2F_CHAR(&UL);
67 F77_TA = C2F_CHAR(&TA);
68 F77_DI = C2F_CHAR(&DI);
69 #endif
70 F77_dtpmv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X, &F77_incX);
71 }
72 else if (layout == CblasRowMajor)
73 {
74 RowMajorStrg = 1;
75 if (Uplo == CblasUpper) UL = 'L';
76 else if (Uplo == CblasLower) UL = 'U';
77 else
78 {
79 cblas_xerbla(2, "cblas_dtpmv","Illegal Uplo setting, %d\n", Uplo);
80 CBLAS_CallFromC = 0;
81 RowMajorStrg = 0;
82 return;
83 }
84
85 if (TransA == CblasNoTrans) TA = 'T';
86 else if (TransA == CblasTrans) TA = 'N';
87 else if (TransA == CblasConjTrans) TA = 'N';
88 else
89 {
90 cblas_xerbla(3, "cblas_dtpmv","Illegal TransA setting, %d\n", TransA);
91 CBLAS_CallFromC = 0;
92 RowMajorStrg = 0;
93 return;
94 }
95
96 if (Diag == CblasUnit) DI = 'U';
97 else if (Diag == CblasNonUnit) DI = 'N';
98 else
99 {
100 cblas_xerbla(4, "cblas_dtpmv","Illegal Diag setting, %d\n", Diag);
101 CBLAS_CallFromC = 0;
102 RowMajorStrg = 0;
103 return;
104 }
105 #ifdef F77_CHAR
106 F77_UL = C2F_CHAR(&UL);
107 F77_TA = C2F_CHAR(&TA);
108 F77_DI = C2F_CHAR(&DI);
109 #endif
110
111 F77_dtpmv( F77_UL, F77_TA, F77_DI, &F77_N, Ap, X,&F77_incX);
112 }
113 else cblas_xerbla(1, "cblas_dtpmv", "Illegal layout setting, %d\n", layout);
114 CBLAS_CallFromC = 0;
115 RowMajorStrg = 0;
116 return;
117 }
118