| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // Copyright (C) 2012 Chen-Pang He <jdh8@ms63.hinet.net> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| #define SCALAR double |
| #define SCALAR_SUFFIX d |
| #define SCALAR_SUFFIX_UP "D" |
| #define ISCOMPLEX 0 |
| |
| #include "level1_impl.h" |
| #include "level1_real_impl.h" |
| #include "level2_impl.h" |
| #include "level2_real_impl.h" |
| #include "level3_impl.h" |
| |
| double EIGEN_BLAS_FUNC(sdot)(int* n, float* x, int* incx, float* y, int* incy) |
| { |
| if(*n<=0) return 0; |
| |
| if(*incx==1 && *incy==1) return (make_vector(x,*n).cast<double>().cwiseProduct(make_vector(y,*n).cast<double>())).sum(); |
| else if(*incx>0 && *incy>0) return (make_vector(x,*n,*incx).cast<double>().cwiseProduct(make_vector(y,*n,*incy).cast<double>())).sum(); |
| else if(*incx<0 && *incy>0) return (make_vector(x,*n,-*incx).reverse().cast<double>().cwiseProduct(make_vector(y,*n,*incy).cast<double>())).sum(); |
| else if(*incx>0 && *incy<0) return (make_vector(x,*n,*incx).cast<double>().cwiseProduct(make_vector(y,*n,-*incy).reverse().cast<double>())).sum(); |
| else if(*incx<0 && *incy<0) return (make_vector(x,*n,-*incx).reverse().cast<double>().cwiseProduct(make_vector(y,*n,-*incy).reverse().cast<double>())).sum(); |
| else return 0; |
| } |