d8076b9333
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.
30 lines
838 B
Plaintext
30 lines
838 B
Plaintext
// Pure-sx fn-pointer cast: a function-pointer typed without `callconv(.c)`
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// keeps the default (sx) calling convention. Passing a >16-byte aggregate
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// through that pointer must not get the C-ABI byval coercion — the sx-CC
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// callee expects the struct as an SSA value, not as a `ptr byval(<T>)`.
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//
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// Pair with examples/86-callconv-c-fnptr-large-aggregate.sx, which covers
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// the opposite arm (fn-pointer typed `callconv(.c)` does get byval).
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#import "modules/std.sx";
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Wide :: struct {
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a: i64; b: i64; c: i64; d: i64;
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}
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accept :: (w: Wide) -> i64 {
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w.a + w.b + w.c + w.d
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}
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main :: () -> i32 {
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w := Wide.{ a = 1, b = 10, c = 100, d = 1000 };
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direct := accept(w);
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if direct != 1111 { return 1; }
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fn_ptr : (Wide) -> i64 = xx accept;
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indirect := fn_ptr(w);
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if indirect != 1111 { return 2; }
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0
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}
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