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langref: fix malloc return type

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XXIV 2023-11-04 13:17:44 +03:00 • committed by Veikka Tuominen
parent 9ced27dace
commit 5ea973dc39
1 changed files with 2 additions and 2 deletions
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4
doc/langref.html.in
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@ -6201,7 +6201,7 @@ struct Foo *do_a_thing(void) {
<p>Zig code</p>
{#syntax_block|zig|call_malloc_from_zig.zig#}
// malloc prototype included for reference
extern fn malloc(size: usize) ?*u8;
extern fn malloc(size: usize) ?[*]u8;
fn doAThing() ?*Foo {
const ptr = malloc(1234) orelse return null;
@ -6210,7 +6210,7 @@ fn doAThing() ?*Foo {
{#end_syntax_block#}
<p>
Here, Zig is at least as convenient, if not more, than C. And, the type of "ptr"
is {#syntax#}*u8{#endsyntax#} <em>not</em> {#syntax#}?*u8{#endsyntax#}. The {#syntax#}orelse{#endsyntax#} keyword
is {#syntax#}[*]u8{#endsyntax#} <em>not</em> {#syntax#}?[*]u8{#endsyntax#}. The {#syntax#}orelse{#endsyntax#} keyword
unwrapped the optional type and therefore {#syntax#}ptr{#endsyntax#} is guaranteed to be non-null everywhere
it is used in the function.
</p>