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 enum CBLAS_ORDER order,const enum CBLAS_UPLO Uplo,const enum CBLAS_TRANSPOSE TransA,const enum CBLAS_DIAG Diag,const int N,const double * Ap,double * X,const int incX)10 void cblas_dtpmv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
11                  const enum CBLAS_TRANSPOSE TransA, const enum CBLAS_DIAG Diag,
12                  const int N, const double  *Ap, double  *X, const int 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 (order == 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 (order == 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 Order setting, %d\n", order);
114    CBLAS_CallFromC = 0;
115    RowMajorStrg = 0;
116    return;
117 }
118