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langref: small clarification of @reduce

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Andrew Kelley 2022-03-17 17:22:57 -07:00
parent 291f5055f4
commit 73e51133c3
1 changed files with 7 additions and 6 deletions
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doc/langref.html.in
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@ -9352,22 +9352,23 @@ test "vector @splat" {
{#header_close#}
{#header_open|@reduce#}
<pre>{#syntax#}@reduce(comptime op: std.builtin.ReduceOp, value: anytype) std.meta.Child(value){#endsyntax#}</pre>
<pre>{#syntax#}@reduce(comptime op: std.builtin.ReduceOp, value: anytype) E{#endsyntax#}</pre>
<p>
Transforms a {#link|vector|Vectors#} into a scalar value by performing a
sequential horizontal reduction of its elements using the specified operator {#syntax#}op{#endsyntax#}.
Transforms a {#link|vector|Vectors#} into a scalar value (of type <code>E</code>)
by performing a sequential horizontal reduction of its elements using the
specified operator {#syntax#}op{#endsyntax#}.
</p>
<p>
Not every operator is available for every vector element type:
</p>
<ul>
<li>Every operator is available for {#link|integer|Integers#} vectors.</li>
<li>{#syntax#}.And{#endsyntax#}, {#syntax#}.Or{#endsyntax#},
{#syntax#}.Xor{#endsyntax#} are available for
{#syntax#}.Xor{#endsyntax#} are additionally available for
{#syntax#}bool{#endsyntax#} vectors,</li>
<li>{#syntax#}.Min{#endsyntax#}, {#syntax#}.Max{#endsyntax#},
{#syntax#}.Add{#endsyntax#}, {#syntax#}.Mul{#endsyntax#} are
available for {#link|floating point|Floats#} vectors,</li>
<li>Every operator is available for {#link|integer|Integers#} vectors.</li>
additionally available for {#link|floating point|Floats#} vectors,</li>
</ul>
<p>
Note that {#syntax#}.Add{#endsyntax#} and {#syntax#}.Mul{#endsyntax#}