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langref: update to document --error-limit flag

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This commit is contained in:
Kirk Scheibelhut
2023-10-19 14:32:44 -07:00
committed by Veikka Tuominen
parent 9d9e22e716
commit ed82e4f7ac
1 changed files with 3 additions and 2 deletions
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doc/langref.html.in
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@@ -5373,8 +5373,9 @@ test "fn reflection" {
gets assigned the same integer value.
</p>
<p>
The number of unique error values across the entire compilation should determine the size of the error set type.
However right now it is hard coded to be a {#syntax#}u16{#endsyntax#}. See <a href="https://github.com/ziglang/zig/issues/786">#786</a>.
The error set type defaults to a {#syntax#}u16{#endsyntax#}, though if the maximum number of distinct
error values is provided via the <kbd>--error-limit [num]</kbd> command line parameter an integer type
with the minimum number of bits required to represent all of the error values will be used.
</p>
<p>
You can {#link|coerce|Type Coercion#} an error from a subset to a superset: