C error when initializing fixed-size array

[Checkmate6659]

V doctor:

V full version: V 0.4.7 f879368.384b5c4
OS: linux, Ubuntu 20.04.6 LTS
Processor: 8 cpus, 64bit, little endian, AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx

getwd: /home/enigma/vlang/bober_mini
vexe: /home/enigma/vlang/v/v
vexe mtime: 2024-08-16 08:21:55

vroot: OK, value: /home/enigma/vlang/v
VMODULES: OK, value: /home/enigma/.vmodules
VTMP: OK, value: /tmp/v_1000

Git version: git version 2.25.1
Git vroot status: weekly.2024.33-11-g384b5c46
.git/config present: true

CC version: cc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
thirdparty/tcc status: thirdparty-linux-amd64 0134e9b9

What did you do?
./v -g -o vdbg cmd/v && ./vdbg src/board.v

module board

pub const n = u8(7)
pub const nsq = u16(n*n)

//Replace b with an empty board. b must be mutable.
//C error when trying to return a fixed-size array:
//https://github.com/vlang/v/issues/22056
pub fn empty_board(mut b [nsq]u8)
{
	b = [nsq]u8{init: 0}
}

//Clear screen.
pub fn clear_screen()
{
	print("\033[2J\033[1;1H")
}

What did you expect to see?

There is a C error when initializing a fixed-size array with {init: 0}. It is different depending on surrounding code: sometimes it is too many initializers, here it is ',' expected (got "*"), sometimes expression expected before '{' much later in the temporary C file

What did you see instead?

src/board.v:1:1: error: project must include a `main` module or be a shared library (compile with `v -shared`)
    1 | module board
      | ^
    2 | 
    3 | pub const n = u8(7)

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[spytheman]

Current workaround: [nsq]u8{}.

[spytheman]

The cgen problem can be shown using v -shared file.v .