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mat: disallow New calls with zero length

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This commit is contained in:
Dan Kortschak
2018-11-20 17:35:34 +10:30
committed by Dan Kortschak
parent d41320af1e
commit 3b99883391
11 changed files with 60 additions and 17 deletions
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6
mat/vector.go
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@@ -86,8 +86,12 @@ type VecDense struct {
// a new slice is allocated for the backing slice. If len(data) == n, data is
// used as the backing slice, and changes to the elements of the returned VecDense
// will be reflected in data. If neither of these is true, NewVecDense will panic.
// NewVecDense will panic if n is zero.
func NewVecDense(n int, data []float64) *VecDense {
if n < 0 {
if n <= 0 {
if n == 0 {
panic(ErrZeroLength)
}
panic("mat: negative dimension")
}
if len(data) != n && data != nil {