1// Code generated by "go generate gonum.org/v1/gonum/blas/gonum”; DO NOT EDIT. 2 3// Copyright ©2015 The Gonum Authors. All rights reserved. 4// Use of this source code is governed by a BSD-style 5// license that can be found in the LICENSE file. 6 7package gonum 8 9import ( 10 "gonum.org/v1/gonum/internal/asm/f32" 11) 12 13// Dsdot computes the dot product of the two vectors 14// \sum_i x[i]*y[i] 15// 16// Float32 implementations are autogenerated and not directly tested. 17func (Implementation) Dsdot(n int, x []float32, incX int, y []float32, incY int) float64 { 18 if incX == 0 { 19 panic(zeroIncX) 20 } 21 if incY == 0 { 22 panic(zeroIncY) 23 } 24 if n <= 0 { 25 if n == 0 { 26 return 0 27 } 28 panic(nLT0) 29 } 30 if incX == 1 && incY == 1 { 31 if len(x) < n { 32 panic(shortX) 33 } 34 if len(y) < n { 35 panic(shortY) 36 } 37 return f32.DdotUnitary(x[:n], y[:n]) 38 } 39 var ix, iy int 40 if incX < 0 { 41 ix = (-n + 1) * incX 42 } 43 if incY < 0 { 44 iy = (-n + 1) * incY 45 } 46 if ix >= len(x) || ix+(n-1)*incX >= len(x) { 47 panic(shortX) 48 } 49 if iy >= len(y) || iy+(n-1)*incY >= len(y) { 50 panic(shortY) 51 } 52 return f32.DdotInc(x, y, uintptr(n), uintptr(incX), uintptr(incY), uintptr(ix), uintptr(iy)) 53} 54