Accessing bool array through c pointer in 0.16

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1

reddit had no tips so mb i’ll have better luck here getting an explanation!

i’m dicking around with converting dearzig lib to 0.16, what the heck is going on here

//pub extern fn ImGui_GetIO() [*c]ImGuiIO;
const io = imgui.ImGui_GetIO();
//do stuff to io.*.blah

all gucci until we hit

// pub const struct_ImGuiIO_t = extern struct {
// ...
//    MouseDown: [5]bool = @import("std").mem.zeroes([5]bool),
// ...

io.*.MouseDown[0] = rl.isMouseButtonDown(.left);

womp womp

raylib.zig:39:45: error: expected type '[5]bool', found 'bool'
io.*.MouseDown[0] = rl.isMouseButtonDown(.left);

but what the heck, shouldn’t i be able to access the element like that? in fact let’s see

std.debug.print("mousedown type: {}\n", .{@typeInfo(@TypeOf(io.*.MouseDown))});
std.debug.print("mousedown[0] type: {}\n", .{@typeInfo(@TypeOf(io.*.MouseDown[0]))});


mousedown type: .{ .array = .{ .len = 5, .child = bool, .sentinel_ptr = null } }
mousedown[0] type: .{ .array = .{ .len = 5, .child = bool, .sentinel_ptr = null } }

que?

now doing

var mouse_down: [5]bool = @splat(false);
mouse_down[0] = rl.isMouseButtonDown(.left);
mouse_down[1] = rl.isMouseButtonDown(.right);
mouse_down[2] = rl.isMouseButtonDown(.middle);
io.*.MouseDown = mouse_down;

works fine and typeinfo gives mouse_down[0] type: .{ .bool = void } which is what i expected from the above too.

Also on 0.15.2 it works and typeof io.*.MouseDown[0] is bool like above.

2

I can not reproduce this bug

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