Files
sx/examples/1210-ffi-02-small-struct.h
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

30 lines
1.3 KiB
C

// FFI struct-marshalling baselines covering four aggregate ABI slots:
// Vec2 — 8 B, two f32 — register-pair (float) path
// Vec4f — 16 B, four f32 — HFA (homogeneous float aggregate)
// Pair64 — 16 B, two i64 — 9..16 B int ABI ([2 x i64] coercion)
// Quad32 — 16 B, four i32 — 9..16 B int ABI ([2 x i64] coercion)
// Declared here so the .c has a header to include; sx side imports
// via `#source` only and re-declares the structs natively (c_import
// rewrites struct-typed params/returns to *void).
typedef struct { float x; float y; } Vec2;
typedef struct { float x; float y; float z; float w; } Vec4f;
typedef struct { long long a; long long b; } Pair64;
typedef struct { int a; int b; int c; int d; } Quad32;
Vec2 ffi_vec2_make (float x, float y);
Vec2 ffi_vec2_swap (Vec2 v);
float ffi_vec2_sum (Vec2 v);
Vec4f ffi_vec4f_make (float x, float y, float z, float w);
Vec4f ffi_vec4f_reverse(Vec4f v);
float ffi_vec4f_sum (Vec4f v);
Pair64 ffi_pair64_make (long long a, long long b);
Pair64 ffi_pair64_swap (Pair64 p);
long long ffi_pair64_sum (Pair64 p);
Quad32 ffi_quad32_make (int a, int b, int c, int d);
Quad32 ffi_quad32_reverse(Quad32 q);
int ffi_quad32_sum (Quad32 q);