translate-c doesn't understand automatic sized arrays.

[BarabasGitHub]

Zig version: 0.5.0+aec4967f3

Trying to translate this C code

const uint32_t shader_data[] = {1, 2, 3, 4};

results in

pub export const data: [*c]const c_uint = [4]c_uint{
    @bitCast(c_uint, @as(c_int, 1)),
    @bitCast(c_uint, @as(c_int, 2)),
    @bitCast(c_uint, @as(c_int, 3)),
    @bitCast(c_uint, @as(c_int, 4)),
};

which fails to compile as zig, because it thinks data is a pointer while it's actually an array.

[BarabasGitHub]

I was trying to look into it and thought Zig used the std to do parse the @cImport-ed files, but it seems the whole c\parse.zig file is full of never compiled code??? I can remove all of it and still build zig and it doesn't seem to have any tests? So... that means it isn't called anywhere and since it doesn't have tests either it never actually gets compiled, right?

Or I'm just totally missing something.

[he-la]

See #4045 for discussion on std.c.parse; translate-c currently implements parsing (and rendering of the zig code) in src-self-hosted/translate_c.zig.

In particular, L672ff take care of rendering the type in zig, while L686ff are responsible for rendering the initializer, i.e. the value. Hence the type renderer is unaware of the initializer, even though the type apparently can depend on whether the variable is initialized or not. You would need to do some lookahead and inform transQualType whether to emit a c pointer or an inferred array size...