+++ /dev/null
-// Copyright ©2014 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.
-
-// This file must be kept in sync with index_bound_checks.go.
-
-//+build !bounds
-
-package mat
-
-// At returns the element at row i, column j.
-func (m *Dense) At(i, j int) float64 {
- if uint(i) >= uint(m.mat.Rows) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(m.mat.Cols) {
- panic(ErrColAccess)
- }
- return m.at(i, j)
-}
-
-func (m *Dense) at(i, j int) float64 {
- return m.mat.Data[i*m.mat.Stride+j]
-}
-
-// Set sets the element at row i, column j to the value v.
-func (m *Dense) Set(i, j int, v float64) {
- if uint(i) >= uint(m.mat.Rows) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(m.mat.Cols) {
- panic(ErrColAccess)
- }
- m.set(i, j, v)
-}
-
-func (m *Dense) set(i, j int, v float64) {
- m.mat.Data[i*m.mat.Stride+j] = v
-}
-
-// At returns the element at row i.
-// It panics if i is out of bounds or if j is not zero.
-func (v *VecDense) At(i, j int) float64 {
- if uint(i) >= uint(v.n) {
- panic(ErrRowAccess)
- }
- if j != 0 {
- panic(ErrColAccess)
- }
- return v.at(i)
-}
-
-// AtVec returns the element at row i.
-// It panics if i is out of bounds.
-func (v *VecDense) AtVec(i int) float64 {
- if uint(i) >= uint(v.n) {
- panic(ErrRowAccess)
- }
- return v.at(i)
-}
-
-func (v *VecDense) at(i int) float64 {
- return v.mat.Data[i*v.mat.Inc]
-}
-
-// SetVec sets the element at row i to the value val.
-// It panics if i is out of bounds.
-func (v *VecDense) SetVec(i int, val float64) {
- if uint(i) >= uint(v.n) {
- panic(ErrVectorAccess)
- }
- v.setVec(i, val)
-}
-
-func (v *VecDense) setVec(i int, val float64) {
- v.mat.Data[i*v.mat.Inc] = val
-}
-
-// At returns the element at row i and column j.
-func (s *SymDense) At(i, j int) float64 {
- if uint(i) >= uint(s.mat.N) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(s.mat.N) {
- panic(ErrColAccess)
- }
- return s.at(i, j)
-}
-
-func (s *SymDense) at(i, j int) float64 {
- if i > j {
- i, j = j, i
- }
- return s.mat.Data[i*s.mat.Stride+j]
-}
-
-// SetSym sets the elements at (i,j) and (j,i) to the value v.
-func (s *SymDense) SetSym(i, j int, v float64) {
- if uint(i) >= uint(s.mat.N) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(s.mat.N) {
- panic(ErrColAccess)
- }
- s.set(i, j, v)
-}
-
-func (s *SymDense) set(i, j int, v float64) {
- if i > j {
- i, j = j, i
- }
- s.mat.Data[i*s.mat.Stride+j] = v
-}
-
-// At returns the element at row i, column j.
-func (t *TriDense) At(i, j int) float64 {
- if uint(i) >= uint(t.mat.N) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(t.mat.N) {
- panic(ErrColAccess)
- }
- return t.at(i, j)
-}
-
-func (t *TriDense) at(i, j int) float64 {
- isUpper := t.triKind()
- if (isUpper && i > j) || (!isUpper && i < j) {
- return 0
- }
- return t.mat.Data[i*t.mat.Stride+j]
-}
-
-// SetTri sets the element at row i, column j to the value v.
-// It panics if the location is outside the appropriate half of the matrix.
-func (t *TriDense) SetTri(i, j int, v float64) {
- if uint(i) >= uint(t.mat.N) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(t.mat.N) {
- panic(ErrColAccess)
- }
- isUpper := t.isUpper()
- if (isUpper && i > j) || (!isUpper && i < j) {
- panic(ErrTriangleSet)
- }
- t.set(i, j, v)
-}
-
-func (t *TriDense) set(i, j int, v float64) {
- t.mat.Data[i*t.mat.Stride+j] = v
-}
-
-// At returns the element at row i, column j.
-func (b *BandDense) At(i, j int) float64 {
- if uint(i) >= uint(b.mat.Rows) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(b.mat.Cols) {
- panic(ErrColAccess)
- }
- return b.at(i, j)
-}
-
-func (b *BandDense) at(i, j int) float64 {
- pj := j + b.mat.KL - i
- if pj < 0 || b.mat.KL+b.mat.KU+1 <= pj {
- return 0
- }
- return b.mat.Data[i*b.mat.Stride+pj]
-}
-
-// SetBand sets the element at row i, column j to the value v.
-// It panics if the location is outside the appropriate region of the matrix.
-func (b *BandDense) SetBand(i, j int, v float64) {
- if uint(i) >= uint(b.mat.Rows) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(b.mat.Cols) {
- panic(ErrColAccess)
- }
- pj := j + b.mat.KL - i
- if pj < 0 || b.mat.KL+b.mat.KU+1 <= pj {
- panic(ErrBandSet)
- }
- b.set(i, j, v)
-}
-
-func (b *BandDense) set(i, j int, v float64) {
- pj := j + b.mat.KL - i
- b.mat.Data[i*b.mat.Stride+pj] = v
-}
-
-// At returns the element at row i, column j.
-func (s *SymBandDense) At(i, j int) float64 {
- if uint(i) >= uint(s.mat.N) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(s.mat.N) {
- panic(ErrColAccess)
- }
- return s.at(i, j)
-}
-
-func (s *SymBandDense) at(i, j int) float64 {
- if i > j {
- i, j = j, i
- }
- pj := j - i
- if s.mat.K+1 <= pj {
- return 0
- }
- return s.mat.Data[i*s.mat.Stride+pj]
-}
-
-// SetSymBand sets the element at row i, column j to the value v.
-// It panics if the location is outside the appropriate region of the matrix.
-func (s *SymBandDense) SetSymBand(i, j int, v float64) {
- if uint(i) >= uint(s.mat.N) {
- panic(ErrRowAccess)
- }
- if uint(j) >= uint(s.mat.N) {
- panic(ErrColAccess)
- }
- s.set(i, j, v)
-}
-
-func (s *SymBandDense) set(i, j int, v float64) {
- if i > j {
- i, j = j, i
- }
- pj := j - i
- if s.mat.K+1 <= pj {
- panic(ErrBandSet)
- }
- s.mat.Data[i*s.mat.Stride+pj] = v
-}
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