[cons.slice]

# 29 Numerics library [[numerics]](./#numerics)

## 29.6 Numeric arrays [[numarray]](numarray#cons.slice)

### 29.6.4 Class slice [[class.slice]](class.slice#cons.slice)

#### 29.6.4.2 Constructors [cons.slice]

[🔗](#lib:slice,constructor)

`slice();
slice(size_t start, size_t length, size_t stride);
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/numerics.tex#L8420)

The default constructor is equivalent to slice(0, 0, 0)[.](#1.sentence-1)

A default constructor is provided only to permit the declaration of arrays of slices[.](#1.sentence-2)

The constructor with arguments for a slice takes a start, length, and stride
parameter[.](#1.sentence-3)

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/numerics.tex#L8426)

[*Example [1](#example-1)*:

slice(3, 8, 2) constructs a slice which selects elements 3,5,7,…,17 from an array[.](#2.sentence-1)

— *end example*]