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// SPDX-License-Identifier: MPL-2.0
// (c) Hare authors <https://harelang.org>
fn unknown_errno(err: errno) str = {
static let buf: [27]u8 = [0...];
let ubuf: [U64_BUFSZ]u8 = [0...];
let sl = buf[..0];
const s = *(&"[unknown errno ": *[]u8);
static append(sl, s...)!;
if (err < 0) {
static append(sl, '-')!;
const s = u64tos(ubuf, -err: u64);
static append(sl, *(&s: *[]u8)...)!;
static append(sl, ']')!;
} else {
const s = u64tos(ubuf, err: u64);
static append(sl, *(&s: *[]u8)...)!;
static append(sl, ']')!;
};
return *(&sl: *str);
};
@test fn unknown_errno() void = {
let err: errno = -1;
assert(strerror(err) == "[unknown errno -1]");
err = 0;
assert(strerror(err) == "[unknown errno 0]");
err = 2147483647;
assert(strerror(err) == "[unknown errno 2147483647]");
};
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