1 /*
2 *
3 * cblas_strmv.c
4 * This program is a C interface to strmv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9 #include "cblas.h"
10 #include "cblas_f77.h"
cblas_strmv(const enum CBLAS_ORDER order,const enum CBLAS_UPLO Uplo,const enum CBLAS_TRANSPOSE TransA,const enum CBLAS_DIAG Diag,const int N,const float * A,const int lda,float * X,const int incX)11 void cblas_strmv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
12 const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_DIAG Diag,
13 const int N, const float *A, const int lda,
14 float *X, const int incX)
15
16 {
17 char TA;
18 char UL;
19 char DI;
20 #ifdef F77_CHAR
21 F77_CHAR F77_TA, F77_UL, F77_DI;
22 #else
23 #define F77_TA &TA
24 #define F77_UL &UL
25 #define F77_DI &DI
26 #endif
27 #ifdef F77_INT
28 F77_INT F77_N=N, F77_lda=lda, F77_incX=incX;
29 #else
30 #define F77_N N
31 #define F77_lda lda
32 #define F77_incX incX
33 #endif
34 extern int CBLAS_CallFromC;
35 extern int RowMajorStrg;
36 RowMajorStrg = 0;
37
38 CBLAS_CallFromC = 1;
39 if (order == CblasColMajor)
40 {
41 if (Uplo == CblasUpper) UL = 'U';
42 else if (Uplo == CblasLower) UL = 'L';
43 else
44 {
45 cblas_xerbla(2, "cblas_strmv","Illegal Uplo setting, %d\n", Uplo);
46 CBLAS_CallFromC = 0;
47 RowMajorStrg = 0;
48 return;
49 }
50 if (TransA == CblasNoTrans) TA = 'N';
51 else if (TransA == CblasTrans) TA = 'T';
52 else if (TransA == CblasConjTrans) TA = 'C';
53 else
54 {
55 cblas_xerbla(3, "cblas_strmv","Illegal TransA setting, %d\n", TransA);
56 CBLAS_CallFromC = 0;
57 RowMajorStrg = 0;
58 return;
59 }
60 if (Diag == CblasUnit) DI = 'U';
61 else if (Diag == CblasNonUnit) DI = 'N';
62 else
63 {
64 cblas_xerbla(4, "cblas_strmv","Illegal Diag setting, %d\n", Diag);
65 CBLAS_CallFromC = 0;
66 RowMajorStrg = 0;
67 return;
68 }
69 #ifdef F77_CHAR
70 F77_UL = C2F_CHAR(&UL);
71 F77_TA = C2F_CHAR(&TA);
72 F77_DI = C2F_CHAR(&DI);
73 #endif
74 F77_strmv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X,
75 &F77_incX);
76 }
77 else if (order == CblasRowMajor)
78 {
79 RowMajorStrg = 1;
80 if (Uplo == CblasUpper) UL = 'L';
81 else if (Uplo == CblasLower) UL = 'U';
82 else
83 {
84 cblas_xerbla(2, "cblas_strmv","Illegal Uplo setting, %d\n", Uplo);
85 CBLAS_CallFromC = 0;
86 RowMajorStrg = 0;
87 return;
88 }
89
90 if (TransA == CblasNoTrans) TA = 'T';
91 else if (TransA == CblasTrans) TA = 'N';
92 else if (TransA == CblasConjTrans) TA = 'N';
93 else
94 {
95 cblas_xerbla(3, "cblas_strmv","Illegal TransA setting, %d\n", TransA);
96 CBLAS_CallFromC = 0;
97 RowMajorStrg = 0;
98 return;
99 }
100
101 if (Diag == CblasUnit) DI = 'U';
102 else if (Diag == CblasNonUnit) DI = 'N';
103 else
104 {
105 cblas_xerbla(4, "cblas_strmv","Illegal Diag setting, %d\n", Diag);
106 CBLAS_CallFromC = 0;
107 RowMajorStrg = 0;
108 return;
109 }
110 #ifdef F77_CHAR
111 F77_UL = C2F_CHAR(&UL);
112 F77_TA = C2F_CHAR(&TA);
113 F77_DI = C2F_CHAR(&DI);
114 #endif
115 F77_strmv( F77_UL, F77_TA, F77_DI, &F77_N, A, &F77_lda, X,
116 &F77_incX);
117 }
118 else cblas_xerbla(1, "cblas_strmv", "Illegal Order setting, %d\n", order);
119 CBLAS_CallFromC = 0;
120 RowMajorStrg = 0;
121 return;
122 }
123