35#ifndef _BLAZE_MATH_LAPACK_POTRS_H_
36#define _BLAZE_MATH_LAPACK_POTRS_H_
71template<
typename MT,
bool SO,
typename VT,
bool TF >
72void potrs(
const DenseMatrix<MT,SO>& A, DenseVector<VT,TF>& b,
char uplo );
74template<
typename MT1,
bool SO1,
typename MT2,
bool SO2 >
75void potrs(
const DenseMatrix<MT1,SO1>& A, DenseMatrix<MT2,SO2>& B,
char uplo );
183 if( (*b).size() != (*A).rows() ) {
187 if( uplo !=
'L' && uplo !=
'U' ) {
191 blas_int_t n ( numeric_cast<blas_int_t>( (*A).rows() ) );
193 blas_int_t lda ( numeric_cast<blas_int_t>( (*A).spacing() ) );
194 blas_int_t ldb ( numeric_cast<blas_int_t>( (*b).size() ) );
201 if( IsRowMajorMatrix_v<MT> ) {
202 ( uplo ==
'L' )?( uplo =
'U' ):( uplo =
'L' );
205 potrs( uplo, n, nrhs, (*A).data(), lda, (*b).data(), ldb, &info );
294template<
typename MT1
316 if( uplo !=
'L' && uplo !=
'U' ) {
320 blas_int_t n ( numeric_cast<blas_int_t>( (*A).rows() ) );
321 blas_int_t mrhs( numeric_cast<blas_int_t>( SO2 ? (*B).rows() : (*B).columns() ) );
322 blas_int_t nrhs( numeric_cast<blas_int_t>( SO2 ? (*B).columns() : (*B).rows() ) );
323 blas_int_t lda ( numeric_cast<blas_int_t>( (*A).spacing() ) );
324 blas_int_t ldb ( numeric_cast<blas_int_t>( (*B).spacing() ) );
335 if( IsRowMajorMatrix_v<MT1> ) {
336 ( uplo ==
'L' )?( uplo =
'U' ):( uplo =
'L' );
339 potrs( uplo, n, nrhs, (*A).data(), lda, (*B).data(), ldb, &info );
Constraint on the data type.
Header file for auxiliary alias declarations.
typename T::ElementType ElementType_t
Alias declaration for nested ElementType type definitions.
Definition: Aliases.h:190
Header file for run time assertion macros.
Constraint on the data type.
Constraint on the data type.
Constraint on the data type.
Header file for the IsRowMajorMatrix type trait.
Constraint on the data type.
Cast operators for numeric types.
Header file for the CLAPACK potrs wrapper functions.
Base class for dense matrices.
Definition: DenseMatrix.h:82
Base class for N-dimensional dense vectors.
Definition: DenseVector.h:77
Constraint on the data type.
Header file for the DenseMatrix base class.
Header file for the DenseVector base class.
#define BLAZE_CONSTRAINT_MUST_BE_SAME_TYPE(A, B)
Data type constraint.
Definition: SameType.h:71
void potrs(const DenseMatrix< MT1, SO1 > &A, DenseMatrix< MT2, SO2 > &B, char uplo)
LAPACK kernel for the substitution step of solving a positive definite linear system of equations ( )...
Definition: potrs.h:298
#define BLAZE_CONSTRAINT_MUST_BE_BLAS_COMPATIBLE_TYPE(T)
Constraint on the data type.
Definition: BLASCompatible.h:61
#define BLAZE_CONSTRAINT_MUST_BE_CONTIGUOUS_TYPE(T)
Constraint on the data type.
Definition: Contiguous.h:61
#define BLAZE_CONSTRAINT_MUST_NOT_BE_COMPUTATION_TYPE(T)
Constraint on the data type.
Definition: Computation.h:81
#define BLAZE_CONSTRAINT_MUST_NOT_BE_ADAPTOR_TYPE(T)
Constraint on the data type.
Definition: Adaptor.h:81
#define BLAZE_CONSTRAINT_MUST_HAVE_MUTABLE_DATA_ACCESS(T)
Constraint on the data type.
Definition: MutableDataAccess.h:61
#define BLAZE_CONSTRAINT_MUST_HAVE_CONST_DATA_ACCESS(T)
Constraint on the data type.
Definition: ConstDataAccess.h:61
int32_t blas_int_t
Signed integer type used in the BLAS/LAPACK wrapper functions.
Definition: Types.h:64
bool isSquare(const Matrix< MT, SO > &matrix) noexcept
Checks if the given matrix is a square matrix.
Definition: Matrix.h:1383
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.
Definition: Assert.h:101
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exception.
Definition: Exception.h:235
Header file for the exception macros of the math module.