Implement SDSDOT with DSDOT and avoid allocating buffers in DSDOT.

1 files changed, 1 insertions, 13 deletions

diff --git a/blas/single.cpp b/blas/single.cpp
index 9516398ba..836e3eee2 100644
--- a/blas/single.cpp
+++ b/blas/single.cpp
@@ -2,7 +2,6 @@
 // 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
@@ -20,15 +19,4 @@
 #include "level3_impl.h"
 
 float BLASFUNC(sdsdot)(int* n, float* alpha, float* x, int* incx, float* y, int* incy)
-{
-  float res = *alpha;
-
-  if(*n>0) {
-    if(*incx==1 && *incy==1)    res += (vector(x,*n).cwiseProduct(vector(y,*n))).sum();
-    else if(*incx>0 && *incy>0) res += (vector(x,*n,*incx).cwiseProduct(vector(y,*n,*incy))).sum();
-    else if(*incx<0 && *incy>0) res += (vector(x,*n,-*incx).reverse().cwiseProduct(vector(y,*n,*incy))).sum();
-    else if(*incx>0 && *incy<0) res += (vector(x,*n,*incx).cwiseProduct(vector(y,*n,-*incy).reverse())).sum();
-    else if(*incx<0 && *incy<0) res += (vector(x,*n,-*incx).reverse().cwiseProduct(vector(y,*n,-*incy).reverse())).sum();
-  }
-  return res;
-}
+{ return *alpha + BLASFUNC(dsdot)(n, x, incx, y, incy); }