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#define STR(x) #x
#define STRING(x) STR(x)
#include <flens/lapack/interface/include/config.h>
namespace flens { namespace lapack {
extern "C" {
//-- dgels ---------------------------------------------------------------------
void
LAPACK_DECL(dgels)(const char *TRANS,
const INTEGER *M,
const INTEGER *N,
const INTEGER *NRHS,
DOUBLE *A,
const INTEGER *LDA,
DOUBLE *B,
const INTEGER *LDB,
DOUBLE *WORK,
const INTEGER *LWORK,
INTEGER *INFO)
{
LAPACK_DEBUG_OUT("LAPACK INTERFACE: dgels");
//
// Test the input parameters so that we pass LAPACK error checks
//
const bool lQuery = (*LWORK==0);
const INTEGER mn = std::min(*M, *N);
*INFO = 0;
if (*TRANS!='N' && *TRANS!='T' && *TRANS!='C') {
*INFO = -1;
} else if (*M<0) {
*INFO = -2;
} else if (*N<0) {
*INFO = -3;
} else if (*NRHS<0) {
*INFO = -4;
} else if (*LDA<std::max(INTEGER(1), *M)) {
*INFO = -6;
} else if (*LDB<flens::max(INTEGER(1), *M, *N)) {
*INFO = -8;
} else if (*LWORK<std::max(INTEGER(1), mn+std::max(mn, *NRHS)) && !lQuery) {
*INFO = -10;
}
if (*INFO!=0) {
*INFO = -(*INFO);
LAPACK_ERROR("DGELS", INFO);
*INFO = -(*INFO);
return;
}
//
// Call FLENS implementation
//
Transpose trans = convertTo<Transpose>(*TRANS);
DGeMatrixView _A = DFSView(*M, *N, *LDA, A);
const INTEGER numRowsB = std::max(*M,*N);
DGeMatrixView _B = DFSView(numRowsB, *NRHS, *LDB, B);
DDenseVectorView _WORK = DArrayView(*LWORK, WORK, 1);
ls(trans, _A, _B, _WORK);
}
//-- zgels ---------------------------------------------------------------------
void
LAPACK_DECL(zgels)(const char *TRANS,
const INTEGER *M,
const INTEGER *N,
const INTEGER *NRHS,
DOUBLE_COMPLEX *A,
const INTEGER *LDA,
DOUBLE_COMPLEX *B,
const INTEGER *LDB,
DOUBLE_COMPLEX *WORK,
const INTEGER *LWORK,
INTEGER *INFO)
{
LAPACK_DEBUG_OUT("LAPACK INTERFACE: zgels");
//
// Test the input parameters so that we pass LAPACK error checks
//
const bool lQuery = (*LWORK==0);
const INTEGER mn = std::min(*M, *N);
*INFO = 0;
if (*TRANS!='N' && *TRANS!='T' && *TRANS!='C') {
*INFO = -1;
} else if (*M<0) {
*INFO = -2;
} else if (*N<0) {
*INFO = -3;
} else if (*NRHS<0) {
*INFO = -4;
} else if (*LDA<std::max(INTEGER(1), *M)) {
*INFO = -6;
} else if (*LDB<flens::max(INTEGER(1), *M, *N)) {
*INFO = -8;
} else if (*LWORK<std::max(INTEGER(1), mn+std::max(mn, *NRHS)) && !lQuery) {
*INFO = -10;
}
if (*INFO!=0) {
*INFO = -(*INFO);
LAPACK_ERROR("ZGELS", INFO);
*INFO = -(*INFO);
return;
}
//
// Call FLENS implementation
//
auto zA = reinterpret_cast<CXX_DOUBLE_COMPLEX *>(A);
auto zB = reinterpret_cast<CXX_DOUBLE_COMPLEX *>(B);
auto zWORK = reinterpret_cast<CXX_DOUBLE_COMPLEX *>(WORK);
Transpose trans = convertTo<Transpose>(*TRANS);
ZGeMatrixView _A = ZFSView(*M, *N, *LDA, zA);
const INTEGER numRowsB = std::max(*M,*N);
ZGeMatrixView _B = ZFSView(numRowsB, *NRHS, *LDB, zB);
ZDenseVectorView _WORK = ZArrayView(*LWORK, zWORK, 1);
ls(trans, _A, _B, _WORK);
}
} // extern "C"
} } // namespace lapack, flens
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