diff options
Diffstat (limited to 'lib/std/meta.zig')
| -rw-r--r-- | lib/std/meta.zig | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/lib/std/meta.zig b/lib/std/meta.zig index 72a073fbfb..03825e2140 100644 --- a/lib/std/meta.zig +++ b/lib/std/meta.zig @@ -190,12 +190,21 @@ test "std.meta.Elem" { /// Types which cannot possibly have a sentinel will be a compile error. pub fn sentinel(comptime T: type) ?Elem(T) { switch (@typeInfo(T)) { - .Array => |info| return info.sentinel, + .Array => |info| { + const sentinel_ptr = info.sentinel orelse return null; + return @ptrCast(*const info.child, sentinel_ptr).*; + }, .Pointer => |info| { switch (info.size) { - .Many, .Slice => return info.sentinel, + .Many, .Slice => { + const sentinel_ptr = info.sentinel orelse return null; + return @ptrCast(*const info.child, sentinel_ptr).*; + }, .One => switch (@typeInfo(info.child)) { - .Array => |array_info| return array_info.sentinel, + .Array => |array_info| { + const sentinel_ptr = array_info.sentinel orelse return null; + return @ptrCast(*const array_info.child, sentinel_ptr).*; + }, else => {}, }, else => {}, @@ -239,7 +248,7 @@ pub fn Sentinel(comptime T: type, comptime sentinel_val: Elem(T)) type { .Array = .{ .len = array_info.len, .child = array_info.child, - .sentinel = sentinel_val, + .sentinel = &sentinel_val, }, }), .is_allowzero = info.is_allowzero, @@ -257,7 +266,7 @@ pub fn Sentinel(comptime T: type, comptime sentinel_val: Elem(T)) type { .address_space = info.address_space, .child = info.child, .is_allowzero = info.is_allowzero, - .sentinel = sentinel_val, + .sentinel = &sentinel_val, }, }), else => {}, @@ -275,7 +284,7 @@ pub fn Sentinel(comptime T: type, comptime sentinel_val: Elem(T)) type { .address_space = ptr_info.address_space, .child = ptr_info.child, .is_allowzero = ptr_info.is_allowzero, - .sentinel = sentinel_val, + .sentinel = &sentinel_val, }, }), }, |