Files
sx/examples/0147-types-zero-count-context.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.

Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).

Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.

zig build test: 426/426; examples suite: 595/595.
2026-06-12 09:31:53 +03:00

20 lines
739 B
Plaintext

// Zero is a context-dependent count. An array dimension and a generic
// value-param count both ACCEPT zero — `[0]T` is a valid empty (zero-length)
// array, and `Box(0)` is a length-0 instantiation. (A `Vector` lane count
// rejects zero — see 1505.) This pins the zero-accepting half of the
// context-dependent count rule documented in specs.md (Array Types).
//
// Regression (F0.4 attempt 12): the spec previously claimed every count must be
// "positive integral", which wrongly implied `[0]T` / `Box(0)` are illegal.
#import "modules/std.sx";
Box :: struct($N: u32) { items: [N]i64; }
main :: () {
a : [0]i64 = ---;
print("array_dim={}\n", a.len);
b : Box(0) = ---;
print("value_param={}\n", b.items.len);
}