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mention arrays of arrays and slices of slices

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Fixes #113.

R=gri, rsc
CC=golang-dev
https://golang.org/cl/159049
This commit is contained in:
Rob Pike 2009-11-20 15:47:15 -08:00
parent 28e392d4bd
commit ff6a8fd779
1 changed files with 11 additions and 0 deletions
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doc/go_spec.html
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@ -607,12 +607,16 @@ integer value. The length of array <code>a</code> can be discovered
using the built-in function <code>len(a)</code>, which is a using the built-in function <code>len(a)</code>, which is a
compile-time constant. The elements can be indexed by integer compile-time constant. The elements can be indexed by integer
indices 0 through the <code>len(a)-1</code> (§<a href="#Indexes">Indexes</a>). indices 0 through the <code>len(a)-1</code> (§<a href="#Indexes">Indexes</a>).
Array types are always one-dimensional but may be composed to form
multi-dimensional types.
</p> </p>
<pre> <pre>
[32]byte [32]byte
[2*N] struct { x, y int32 } [2*N] struct { x, y int32 }
[1000]*float64 [1000]*float64
[3][5]int
[2][2][2]float64 // same as [2]([2]([2]float64))
</pre> </pre>
<h3 id="Slice_types">Slice types</h3> <h3 id="Slice_types">Slice types</h3>
@ -690,6 +694,13 @@ make([]int, 50, 100)
new([100]int)[0:50] new([100]int)[0:50]
</pre> </pre>
<p>
Like arrays, slices are always one-dimensional but may be composed to construct
higher-dimensional objects.
With arrays of arrays, the inner arrays are, by construction, always the same length;
however with slices of slices (or arrays of slices), the lengths may vary dynamically.
Moreover, the inner slices must be allocated individually (with <code>make</code>).
</p>
<h3 id="Struct_types">Struct types</h3> <h3 id="Struct_types">Struct types</h3>