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  1 #include <cxxblas/cxxblas.cxx>
  2 #include <cxxblas/interface/aux.h>
  3 
  4 using cxxblas::StorageOrder;
  5 using cxxblas::ColMajor;
  6 using cxxblas::RowMajor;
  7 
  8 using cxxblas::Transpose;
  9 using cxxblas::NoTrans;
 10 using cxxblas::Trans;
 11 using cxxblas::Conj;
 12 using cxxblas::ConjTrans;
 13 
 14 using cxxblas::StorageUpLo;
 15 using cxxblas::Upper;
 16 using cxxblas::Lower;
 17 
 18 using cxxblas::Diag;
 19 using cxxblas::Unit;
 20 using cxxblas::NonUnit;
 21 
 22 
 23 extern "C" {
 24 
 25     void xerbla_(const char* srname, int* info);
 26 
 27 #ifndef COMPLEX_FLOAT1
 28     typedef CBLAS_FLOAT                 CXXBLAS_FLOAT;
 29 #else
 30     typedef std::complex<CBLAS_FLOAT>   CXXBLAS_FLOAT;
 31 #endif
 32 
 33     enum CBLAS_ORDER        {CblasRowMajor=101, CblasColMajor=102};
 34     enum CBLAS_UPLO         {CblasUpper=121, CblasLower=122};
 35     enum CBLAS_TRANSPOSE    {CblasNoTrans=111, CblasTrans=112,
 36                              CblasConjTrans=113, CblasConjNoTrans=114};
 37     enum CBLAS_DIAG         {CblasNonUnit=131, CblasUnit=132};
 38 
 39 
 40     void
 41     CBLAS_NAME(enum CBLAS_ORDER _order,
 42                enum CBLAS_UPLO _upLo,
 43                enum CBLAS_TRANSPOSE _transA,
 44                enum CBLAS_DIAG _diag,
 45                CBLAS_INT n,
 46                const CBLAS_FLOAT  *_A,
 47                CBLAS_FLOAT  *_x, CBLAS_INT incX)
 48 #ifdef CREATE_CBLAS
 49     {
 50         StorageOrder order = (_order==CblasColMajor) ? ColMajor
 51                                                      : RowMajor;
 52         StorageUpLo upLo = Lower;
 53         if (_upLo==CblasUpper) {
 54             upLo = Upper;
 55         }
 56 
 57         Transpose transA = NoTrans;
 58         if (_transA==CblasTrans) {
 59             transA = Trans;
 60         }
 61         if (_transA==CblasConjTrans) {
 62             transA = ConjTrans;
 63         }
 64 
 65         Diag diag = NonUnit;
 66         if (_diag==CblasUnit) {
 67             diag = Unit;
 68         }
 69 
 70         const CXXBLAS_FLOAT *A = reinterpret_cast<const CXXBLAS_FLOAT *>(_A);
 71         CXXBLAS_FLOAT *x = reinterpret_cast<CXXBLAS_FLOAT *>(_x);
 72 
 73 #   ifdef TEST_ROW_MAJOR
 74         switchPackedStorageOrder(order, upLo, n, A);
 75         order = (order==ColMajor) ? RowMajor : ColMajor;
 76 #   endif
 77 
 78         cxxblas::tpsv(order, upLo, transA, diag,
 79                       n,
 80                       A,
 81                       x, incX);
 82 
 83 #   ifdef TEST_ROW_MAJOR
 84         releaseStorage(A);
 85 #   endif
 86     }
 87 #else
 88     ;
 89 #endif // CREATE_CBLAS
 90 
 91 #ifdef CREATE_BLAS
 92     void
 93     BLAS_NAME(const char *_upLo, const char *_transA, const char *_diag,
 94               const CBLAS_INT *_n,
 95               const CBLAS_FLOAT *A,
 96               CBLAS_FLOAT *x, const CBLAS_INT *_incX)
 97     {
 98         bool checkUpLo = false,
 99              checkDiag = false,
100              checkTrans = false;
101 
102         CBLAS_UPLO upLo = CblasUpper;
103         if ((*_upLo=='L') || (*_upLo=='l')) {
104             checkUpLo = true;
105             upLo = CblasLower;
106         }
107         if ((*_upLo=='U') || (*_upLo=='u')) {
108             checkUpLo = true;
109         }
110 
111         CBLAS_TRANSPOSE transA = CblasConjNoTrans;
112         if ((*_transA=='N') || (*_transA=='n')) {
113             transA = CblasNoTrans;
114             checkTrans = true;
115         }
116         if ((*_transA=='T') || (*_transA=='t')) {
117             transA = CblasTrans;
118             checkTrans = true;
119         }
120         if ((*_transA=='C') || (*_transA=='c')) {
121             transA = CblasConjTrans;
122             checkTrans = true;
123         }
124         if ((*_transA=='R') || (*_transA=='r')) {
125             checkTrans = true;
126         }
127 
128         CBLAS_DIAG diag = CblasUnit;
129         if ((*_diag=='N') || (*_diag=='n')) {
130             diag = CblasNonUnit;
131             checkDiag = true;
132         }
133         if ((*_diag=='U') || (*_diag=='u')) {
134             checkDiag = true;
135         }
136 
137         CBLAS_INT n       = *_n;
138         CBLAS_INT incX    = *_incX;
139 
140         CBLAS_INT info = 0;
141         if (incX==0) {
142             info = 7; 
143         }
144         if (n<0) {
145             info = 4;
146         }
147         if (!checkDiag) {
148             info = 3;
149         }
150         if (!checkTrans) {
151             info = 2;
152         }
153         if (!checkUpLo) {
154             info = 1;
155         }
156         if (info!=0) {
157             char blasName[6];
158             strncpy(blasName, BLAS_NAME_STR, 6);
159             for (int i=0; i<6; ++i) {
160                 blasName[i] = std::toupper(blasName[i]);
161             }
162             xerbla_(blasName, &info);
163           return;
164         }
165 
166         // the blas interface calls the cblas interface
167         // so any blas-test will also test the cblas-interface
168         CBLAS_NAME(CblasColMajor, upLo, transA, diag,
169                    n,
170                    A,
171                    x, incX);
172     }
173 #endif // CREATE_BLAS
174 
175 } // extern "C"
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