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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     void
 40     CBLAS_NAME(enum CBLAS_ORDER _order,
 41                enum CBLAS_UPLO _upLo,
 42                enum CBLAS_TRANSPOSE _transA,
 43                enum CBLAS_DIAG _diag,
 44                CBLAS_INT n,
 45                const CBLAS_FLOAT  *_A, CBLAS_INT ldA,
 46                CBLAS_FLOAT  *_x, CBLAS_INT incX)
 47 #ifdef CREATE_CBLAS
 48     {
 49         StorageOrder order = (_order==CblasColMajor) ? ColMajor
 50                                                      : RowMajor;
 51         StorageUpLo upLo = Lower;
 52         if (_upLo==CblasUpper) {
 53             upLo = Upper;
 54         }
 55 
 56         Transpose transA = NoTrans;
 57         if (_transA==CblasTrans) {
 58             transA = Trans;
 59         }
 60         if (_transA==CblasConjTrans) {
 61             transA = ConjTrans;
 62         }
 63         if (_transA==CblasConjNoTrans) {
 64             transA = Conj;
 65         }
 66 
 67         Diag diag = NonUnit;
 68         if (_diag==CblasUnit) {
 69             diag = Unit;
 70         }
 71 
 72         const CXXBLAS_FLOAT *A = reinterpret_cast<const CXXBLAS_FLOAT *>(_A);
 73         CXXBLAS_FLOAT *x = reinterpret_cast<CXXBLAS_FLOAT *>(_x);
 74 
 75 #   ifdef TEST_ROW_MAJOR
 76         switchFullStorageOrder(order, n, n, A, ldA);
 77         order = (order==ColMajor) ? RowMajor : ColMajor;
 78 #   endif
 79 
 80         cxxblas::trmv(order, upLo, transA, diag,
 81                       n,
 82                       A, ldA,
 83                       x, incX);
 84 
 85 #   ifdef TEST_ROW_MAJOR
 86         releaseStorage(A);
 87 #   endif
 88     }
 89 #else
 90     ;
 91 #endif // CREATE_CBLAS
 92 
 93 #ifdef CREATE_BLAS
 94 
 95     void
 96     BLAS_NAME(const char *_upLo, const char *_transA, const char *_diag,
 97               const CBLAS_INT *_n,
 98               const CBLAS_FLOAT *A, const CBLAS_INT *_ldA,
 99               CBLAS_FLOAT *x, const CBLAS_INT *_incX)
100     {
101         bool checkUpLo = false,
102              checkDiag = false,
103              checkTrans = false;
104 
105         CBLAS_UPLO upLo = CblasUpper;
106         if ((*_upLo=='L') || (*_upLo=='l')) {
107             upLo = CblasLower;
108             checkUpLo = true;
109         }
110         if ((*_upLo=='U') || (*_upLo=='u')) {
111             upLo = CblasUpper;
112             checkUpLo = true;
113         }
114 
115         CBLAS_TRANSPOSE transA = CblasConjNoTrans;
116         if ((*_transA=='N') || (*_transA=='n')) {
117             transA = CblasNoTrans;
118             checkTrans = true;
119         }
120         if ((*_transA=='T') || (*_transA=='t')) {
121             transA = CblasTrans;
122             checkTrans = true;
123         }
124         if ((*_transA=='C') || (*_transA=='c')) {
125             transA = CblasConjTrans;
126             checkTrans = true;
127         }
128         if ((*_transA=='R') || (*_transA=='r')) {
129             transA = CblasConjNoTrans;
130             checkTrans = true;
131         }
132 
133         CBLAS_DIAG diag = CblasUnit;
134         if ((*_diag=='N') || (*_diag=='n')) {
135             diag = CblasNonUnit;
136             checkDiag = true;
137         }
138         if ((*_diag=='U') || (*_diag=='u')) {
139             checkDiag = true;
140         }        
141         
142         CBLAS_INT n       = *_n;
143         CBLAS_INT ldA     = *_ldA;
144         CBLAS_INT incX    = *_incX;
145 
146         CBLAS_INT info = 0;
147         if (incX==0) {
148             info = 8; 
149         }
150         if (ldA<std::max(1, n)) {
151             info = 6;
152         }
153         if (n<0) {
154             info = 4;
155         }
156         if (!checkDiag) {
157             info = 3;
158         }
159         if (!checkTrans) {
160             info = 2;
161         }
162         if (!checkUpLo) {
163             info = 1;
164         }
165         if (info!=0) {
166             char blasName[6];
167             strncpy(blasName, BLAS_NAME_STR, 6);
168             for (int i=0; i<6; ++i) {
169                 blasName[i] = std::toupper(blasName[i]);
170             }
171             xerbla_(blasName, &info);
172           return;
173         }
174 
175         // the blas interface calls the cblas interface
176         // so any blas-test will also test the cblas-interface
177         CBLAS_NAME(CblasColMajor, upLo, transA, diag,
178                    n,
179                    A, ldA,
180                    x, incX);
181     }
182 #endif // CREATE_BLAS
183 
184 } // extern "C"
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