mirror of
https://github.com/gonum/gonum.git
synced 2025-10-20 13:55:20 +08:00
af58b714c9
This documentation is intended to allow gonum developers to see exactly what an asm function is intended to do. They are not for external code consumers.
58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
// Copyright ©2016 The gonum Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//+build !amd64 noasm appengine
|
|
|
|
package f64
|
|
|
|
// ScalUnitary is
|
|
// for i := range x {
|
|
// x[i] *= alpha
|
|
// }
|
|
func ScalUnitary(alpha float64, x []float64) {
|
|
for i := range x {
|
|
x[i] *= alpha
|
|
}
|
|
}
|
|
|
|
// ScalUnitaryTo is
|
|
// for i, v := range x {
|
|
// dst[i] = alpha * v
|
|
// }
|
|
func ScalUnitaryTo(dst []float64, alpha float64, x []float64) {
|
|
for i, v := range x {
|
|
dst[i] = alpha * v
|
|
}
|
|
}
|
|
|
|
// ScalInc is
|
|
// var ix uintptr
|
|
// for i := 0; i < int(n); i++ {
|
|
// x[ix] *= alpha
|
|
// ix += incX
|
|
// }
|
|
func ScalInc(alpha float64, x []float64, n, incX uintptr) {
|
|
var ix uintptr
|
|
for i := 0; i < int(n); i++ {
|
|
x[ix] *= alpha
|
|
ix += incX
|
|
}
|
|
}
|
|
|
|
// ScalIncTo is
|
|
// var idst, ix uintptr
|
|
// for i := 0; i < int(n); i++ {
|
|
// dst[idst] = alpha * x[ix]
|
|
// ix += incX
|
|
// idst += incDst
|
|
// }
|
|
func ScalIncTo(dst []float64, incDst uintptr, alpha float64, x []float64, n, incX uintptr) {
|
|
var idst, ix uintptr
|
|
for i := 0; i < int(n); i++ {
|
|
dst[idst] = alpha * x[ix]
|
|
ix += incX
|
|
idst += incDst
|
|
}
|
|
}
|