[gslice.cons]

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

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

### 29.6.6 The gslice class [[class.gslice]](class.gslice#gslice.cons)

#### 29.6.6.2 Constructors [gslice.cons]

[🔗](#lib:gslice,constructor)

`gslice();
gslice(size_t start, const valarray<size_t>& lengths,
       const valarray<size_t>& strides);
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/numerics.tex#L8720)

The default constructor is equivalent togslice(0, valarray<size_t>(), valarray<size_t>())[.](#1.sentence-1)

The constructor with arguments builds agslice based on a specification of start, lengths, and strides, as explained
in the previous subclause[.](#1.sentence-2)