mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-04-26 13:01:34 +03:00
Matthew Lugg
78 lines
2.9 KiB
Plaintext
78 lines
2.9 KiB
Plaintext
#update=initial version
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#file=main.zig
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const Foo = packed struct(u8) { a: u4, b: i4 };
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const Bar = packed union(u10) { a: u10, b: i10 };
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pub fn main() void {}
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comptime {
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@compileLog(@typeInfo(Foo).@"struct".backing_integer.?);
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}
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comptime {
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@compileLog(@bitSizeOf(Bar));
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}
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const std = @import("std");
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const io = std.Io.Threaded.global_single_threaded.io();
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#expect_error=main.zig:5:5: error: found compile log statement
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#expect_error=main.zig:8:5: note: also here
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#expect_compile_log=@as(type, u8)
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#expect_compile_log=@as(comptime_int, 10)
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#update=make backing types signed
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#file=main.zig
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const Foo = packed struct(i8) { a: u4, b: i4 };
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const Bar = packed union(i10) { a: u10, b: i10 };
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pub fn main() void {}
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comptime {
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@compileLog(@typeInfo(Foo).@"struct".backing_integer.?);
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}
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comptime {
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@compileLog(@bitSizeOf(Bar));
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}
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const std = @import("std");
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const io = std.Io.Threaded.global_single_threaded.io();
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#expect_error=main.zig:5:5: error: found compile log statement
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#expect_error=main.zig:8:5: note: also here
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#expect_compile_log=@as(type, i8)
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#expect_compile_log=@as(comptime_int, 10)
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#update=make backing types too small
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#file=main.zig
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const Foo = packed struct(i5) { a: u4, b: i4 };
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const Bar = packed union(i8) { a: u10, b: i10 };
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pub fn main() void {}
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comptime {
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@compileLog(@typeInfo(Foo).@"struct".backing_integer.?);
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}
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comptime {
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@compileLog(@bitSizeOf(Bar));
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}
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const std = @import("std");
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const io = std.Io.Threaded.global_single_threaded.io();
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#expect_error=main.zig:1:20: error: backing integer bit width does not match total bit width of fields
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#expect_error=main.zig:1:27: note: backing integer 'i5' has bit width '5'
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#expect_error=main.zig:1:20: note: struct fields have total bit width '8'
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#expect_error=main.zig:2:35: error: field bit width does not match backing integer
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#expect_error=main.zig:2:35: note: field type 'u10' has bit width '10'
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#expect_error=main.zig:2:26: note: backing integer 'i8' has bit width '8'
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#expect_error=main.zig:2:35: note: all fields in a packed union must have the same bit width
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#update=make backing types too big
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#file=main.zig
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const Foo = packed struct(u10) { a: u4, b: i4 };
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const Bar = packed union(u32) { a: u10, b: i10 };
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pub fn main() void {}
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comptime {
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@compileLog(@typeInfo(Foo).@"struct".backing_integer.?);
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}
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comptime {
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@compileLog(@bitSizeOf(Bar));
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}
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const std = @import("std");
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const io = std.Io.Threaded.global_single_threaded.io();
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#expect_error=main.zig:1:20: error: backing integer bit width does not match total bit width of fields
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#expect_error=main.zig:1:27: note: backing integer 'u10' has bit width '10'
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#expect_error=main.zig:1:20: note: struct fields have total bit width '8'
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#expect_error=main.zig:2:36: error: field bit width does not match backing integer
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#expect_error=main.zig:2:36: note: field type 'u10' has bit width '10'
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#expect_error=main.zig:2:26: note: backing integer 'u32' has bit width '32'
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#expect_error=main.zig:2:36: note: all fields in a packed union must have the same bit width
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