zig/test/cases/compile_errors/incompatible_sentinels.zig
Will Lillis 7e76818132
fix(fmt): pointer type syntax to index (take 2) (#20336)
* Change main token for many-item and c style pointers from asterisk to l brace, update main token in c translation
2024-07-21 01:55:52 -07:00

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// Note: One of the error messages here is backwards. It would be nice to fix, but that's not
// going to stop me from merging this branch which fixes a bunch of other stuff.
export fn entry1(ptr: [*:255]u8) [*:0]u8 {
return ptr;
}
export fn entry2(ptr: [*]u8) [*:0]u8 {
return ptr;
}
export fn entry3() void {
var array: [2:0]u8 = [_:255]u8{ 1, 2 };
_ = &array;
}
export fn entry4() void {
var array: [2:0]u8 = [_]u8{ 1, 2 };
_ = &array;
}
// error
// backend=stage2
// target=native
//
// :4:12: error: expected type '[*:0]u8', found '[*:255]u8'
// :4:12: note: pointer sentinel '255' cannot cast into pointer sentinel '0'
// :3:34: note: function return type declared here
// :7:12: error: expected type '[*:0]u8', found '[*]u8'
// :7:12: note: destination pointer requires '0' sentinel
// :6:30: note: function return type declared here
// :10:35: error: expected type '[2:0]u8', found '[2:255]u8'
// :10:35: note: array sentinel '255' cannot cast into array sentinel '0'
// :14:31: error: expected type '[2:0]u8', found '[2]u8'
// :14:31: note: destination array requires '0' sentinel