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langref: small updates

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xackus 2020-03-24 00:00:52 +01:00 committed by Andrew Kelley
parent 22dbeab29d
commit b7f116a774
1 changed files with 4 additions and 6 deletions
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10
doc/langref.html.in
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@ -247,8 +247,7 @@ pub fn main() void {
}
{#code_end#}
<p>
Note that we also left off the {#syntax#}!{#endsyntax#} from the return type.
In Zig, if your main function cannot fail, you must use the {#syntax#}void{#endsyntax#} return type.
Note that you can leave off the {#syntax#}!{#endsyntax#} from the return type because {#syntax#}warn{#endsyntax#} cannot fail.
</p>
{#see_also|Values|@import|Errors|Root Source File#}
{#header_close#}
@ -985,7 +984,7 @@ export fn foo_strict(x: f64) f64 {
}
export fn foo_optimized(x: f64) f64 {
@setFloatMode(builtin.FloatMode.Optimized);
@setFloatMode(.Optimized);
return x + big - big;
}
{#code_end#}
@ -2992,7 +2991,7 @@ test "simple union" {
This turns the union into a <em>tagged</em> union, which makes it eligible
to use with {#link|switch#} expressions. One can use {#link|@TagType#} to
obtain the enum type from the union type.
Tagged unions coerce to their enum {#link|Type Coercion: unions and enums#}
Tagged unions coerce to their tag type: {#link|Type Coercion: unions and enums#}.
</p>
{#code_begin|test#}
const std = @import("std");
@ -9479,7 +9478,7 @@ pub fn main() void {
const builtin = @import("builtin");
const c = @cImport({
@cDefine("NDEBUG", builtin.mode == builtin.Mode.ReleaseFast);
@cDefine("NDEBUG", builtin.mode == .ReleaseFast);
if (something) {
@cDefine("_GNU_SOURCE", {});
}
@ -10077,7 +10076,6 @@ fn readU32Be() u32 {}
{#header_open|Keyword: pub#}
<p>The {#syntax#}pub{#endsyntax#} in front of a top level declaration makes the
declaration available to reference from a different file than the one it is declared in.</p>
<p><a href="https://github.com/ziglang/zig/issues/2059">TODO delete pub syntax for fields, or make it do something.</a></p>
{#see_also|@import#}
{#header_close#}
{#header_close#}