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std.Thread: fix off-by-one in PosixThreadImpl (#18711)

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by removing ZST special case
This commit is contained in:
Christian Flicker
2024-01-29 17:07:21 +01:00
committed by GitHub
parent 7b4561170a
commit 9c7fa358c1
1 changed files with 1 additions and 6 deletions
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7
lib/std/Thread.zig
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@@ -674,11 +674,6 @@ const PosixThreadImpl = struct {
const Instance = struct {
fn entryFn(raw_arg: ?*anyopaque) callconv(.C) ?*anyopaque {
// @alignCast() below doesn't support zero-sized-types (ZST)
if (@sizeOf(Args) < 1) {
return callFn(f, @as(Args, undefined));
}
const args_ptr: *Args = @ptrCast(@alignCast(raw_arg));
defer allocator.destroy(args_ptr);
return callFn(f, args_ptr.*);
@@ -703,7 +698,7 @@ const PosixThreadImpl = struct {
&handle,
&attr,
Instance.entryFn,
if (@sizeOf(Args) > 1) @as(*anyopaque, @ptrCast(args_ptr)) else undefined,
@ptrCast(args_ptr),
)) {
.SUCCESS => return Impl{ .handle = handle },
.AGAIN => return error.SystemResources,