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test: re-enable packed struct field type behavior test

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With new code courtesy of mlugg
This commit is contained in:
Justus Klausecker 2026-01-10 14:24:28 +01:00 • committed by Matthew Lugg
parent bce7e7a52b
commit 0b3b536f18
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1 changed files with 14 additions and 30 deletions
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44
test/behavior/packed-struct.zig
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@ -513,37 +513,21 @@ test "@intFromPtr on a packed struct field unaligned and nested" {
};
};
if (false) {
switch (comptime @alignOf(S2)) {
4 => {
comptime assert(@TypeOf(&S2.s.base) == *align(4) u8);
comptime assert(@TypeOf(&S2.s.p0.a) == *align(1:0:2) u4);
comptime assert(@TypeOf(&S2.s.p0.b) == *align(1:4:2) u4);
comptime assert(@TypeOf(&S2.s.p0.c) == *u8);
comptime assert(@TypeOf(&S2.s.bit0) == *align(4:24:8) u1);
comptime assert(@TypeOf(&S2.s.p1.a) == *align(4:25:8) u8);
comptime assert(@TypeOf(&S2.s.p2.a) == *align(4:33:8) u7);
comptime assert(@TypeOf(&S2.s.p2.b) == *u8);
comptime assert(@TypeOf(&S2.s.p3.a) == *align(2:0:2) u4);
comptime assert(@TypeOf(&S2.s.p3.b) == *align(2:4:2) u4);
comptime assert(@TypeOf(&S2.s.p3.c) == *u8);
},
8 => {
comptime assert(@TypeOf(&S2.s.base) == *align(8) u8);
comptime assert(@TypeOf(&S2.s.p0.a) == *align(1:0:2) u4);
comptime assert(@TypeOf(&S2.s.p0.b) == *align(1:4:2) u4);
comptime assert(@TypeOf(&S2.s.p0.c) == *u8);
comptime assert(@TypeOf(&S2.s.bit0) == *align(8:24:8) u1);
comptime assert(@TypeOf(&S2.s.p1.a) == *align(8:25:8) u8);
comptime assert(@TypeOf(&S2.s.p2.a) == *align(8:33:8) u7);
comptime assert(@TypeOf(&S2.s.p2.b) == *u8);
comptime assert(@TypeOf(&S2.s.p3.a) == *align(2:0:2) u4);
comptime assert(@TypeOf(&S2.s.p3.b) == *align(2:4:2) u4);
comptime assert(@TypeOf(&S2.s.p3.c) == *u8);
},
else => {},
}
{
const a = @alignOf(S2);
comptime assert(@TypeOf(&S2.s.base) == *align(a:0:8) u8);
comptime assert(@TypeOf(&S2.s.p0.a) == *align(a:8:8) u4);
comptime assert(@TypeOf(&S2.s.p0.b) == *align(a:12:8) u4);
comptime assert(@TypeOf(&S2.s.p0.c) == *align(a:16:8) u8);
comptime assert(@TypeOf(&S2.s.bit0) == *align(a:24:8) u1);
comptime assert(@TypeOf(&S2.s.p1.a) == *align(a:25:8) u8);
comptime assert(@TypeOf(&S2.s.p2.a) == *align(a:33:8) u7);
comptime assert(@TypeOf(&S2.s.p2.b) == *align(a:40:8) u8);
comptime assert(@TypeOf(&S2.s.p3.a) == *align(a:48:8) u4);
comptime assert(@TypeOf(&S2.s.p3.b) == *align(a:52:8) u4);
comptime assert(@TypeOf(&S2.s.p3.c) == *align(a:56:8) u8);
}
try expect(@intFromPtr(&S2.s.base) - @intFromPtr(&S2.s) == 0);
try expect(@intFromPtr(&S2.s.p0.a) - @intFromPtr(&S2.s) == 0);
try expect(@intFromPtr(&S2.s.p0.b) - @intFromPtr(&S2.s) == 0);