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Enforce alignment of Array.slice() at compile time

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This commit is contained in:
Isaac Freund
2023-07-20 23:25:47 +02:00
parent c2ae31892e
commit 2a74c691eb
1 changed files with 2 additions and 2 deletions
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src/common_core.zig
+2 -2
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@@ -32,10 +32,10 @@ pub const Array = extern struct {
};
}
pub fn slice(array: Array, comptime T: type) []T {
pub fn slice(array: Array, comptime T: type) []align(4) T {
const data = array.data orelse return &[0]T{};
// The wire protocol/libwayland only guarantee 32-bit word alignment.
const ptr: [*]T = @ptrCast(@alignCast(data));
const ptr: [*]align(4) T = @ptrCast(@alignCast(data));
return ptr[0..@divExact(array.size, @sizeOf(T))];
}
};